SCAU大二上Java综合性实验

一、题目要求

实验内容：

1. 已经提供的原始数据：班级成绩单文件

该文件为文本文件，存储某个班的所有学生某门课程的成绩。

例如：2012级计算机科学与技术8班-面向对象程序设计.txt

文件中每行存储一个学生的成绩，包括：学号、姓名和成绩，中间用英文逗号分隔。

说明：学号和姓名是字符串，成绩使用整数。

例如“2012级计算机科学与技术8班-面向对象程序设计.txt”文件中存放该班学生面向对象程序设计的考试成绩。内容为：

201230740801,赵一,68

201230740802,钱二,82

201230740803,孙三,58

201230740804,李四,62

201230740805,冯五,73

……

2. 实验要求：

(1) 程序使用图形用户界面。

(2) 文件操作与数据统计功能

<1> 打开上面给出的文本文件，将其中的成绩数据加载到内存。

<2> 把内存中的成绩数据另存为格式相同的另一个文本文件。

<3> 把内存中的成绩数据另存为一个二进制的对象文件。

<4> 打开已经保存的二进制的对象文件，将其中的成绩数据加载到内存。

<5> 统计分析已经加载到内存的班级的成绩，包括：最高分、最低分、平均分、各成绩等级的人数和百分比。

说明：该部分界面参见图1，黄色注释框标出的是完成本部分功能需要的界面。

(3) 图形统计功

<1> 对加载到内存的成绩单进行“柱形图”分析

<2> 对加载到内存的成绩单进行“饼图”分析

说明：该部分界面参见图2，图1红注释框标出的是完成本部分功能需要的按钮。图形使用Java的Graphics对象绘制，不得使用第三方类库。

(4) 查询排序功能

<1> 在“查询输入框”输入“学号、姓名或成绩”的全部或部分，成绩列表中只显示包括输入数据的成绩项目。

<2> 点击表格的“列标题”，可以自动按该列排序，2次点击可以切换“升序”和“降序”。

说明：图1黑色注释框指出的是查询界面的位置。提示：JTabel的RowSorter。

提交要求：

二、功能实现方法

1.图形用户界面

运用了Swing 的组件类（JFrame,JButton,JLable等等）去完成了这个功能，使用了可视化编程的方法去完成了,然后使用监听器去触发事件。

2.文件操作与数据统计功能

所有选择文件操作的都使用JFileChooser去完成 。

普通文件输入输出使用，Scanner , PrintWriter 实现。

而对象（二进制）文件即使用DataInputStream , DataOutputStream 来实现。

所有读入的数据存储在一个 ArrayList 里面。

3.图形统计功

使用Graphics 类制作圆，矩形，然后通过数据来调节矩形的高度，通过百分比分配圆的弧度来实现 柱状图 和 饼状图的分析功能 。

 

4.查询排序功能

使用JTable 来展现保存在ArrayList中的所有学生的数据。

利用 JTable 中的自动排序功能，还有滤器分别完成排序和查找功能。

学了4日的JAVA，写了2日的Java...使用可视化编程写的界面，主类代码坎长得一B，可读性甚差~~ 这样了！！

普通文件读写的编码上面还是有一点问题。我就默认了UTF-8算了。

下面是源程序的几个类

 Test(主类)

package test;
/**
 *
 * @hl_mark
 * 
 */
import java.awt.Graphics;
import java.io.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.RowFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class Test extends javax.swing.JFrame {
    int maxScore , minScore , tot ; double averageScore;
    int cnt[] = new int[5] ;  double percent[] = new double[5] ; 
    ArrayList studentList = new ArrayList();
    private Object output;
    
    void updateDate(){
        maxScore = 0 ; minScore = 100; averageScore = 0 ;
        for( int i = 0 ; i < 5 ; ++i ) { 
            cnt[i] = 0 ;
            percent[i] = 0;
        }
        tot = studentList.size();
        for( int i = 0 ; i < tot ;  ++i ){
            Student tmp = (Student)studentList.get(i);
            int score = tmp.get_score();
            averageScore += (double)score ;
            if( score > maxScore ) maxScore = score ;
            if( score < minScore ) minScore = score ;
            if( score >= 0 && score < 60 ) cnt[4]++;
            else if( score >=60 && score < 70 ) cnt[3]++;
            else if( score >=70 && score < 80 ) cnt[2]++;
            else if( score >=80 && score < 90 ) cnt[1]++;
            else cnt[0]++;
        }
        averageScore /= tot;
        for( int i = 0 ; i < 5 ; ++i ) percent[i] = (double)cnt[i]/tot*100.0;
    }
    
    public Test() {
        initComponents();
    }
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jCheckBoxMenuItem1 = new javax.swing.JCheckBoxMenuItem();
        jCheckBoxMenuItem2 = new javax.swing.JCheckBoxMenuItem();
        jPanel2 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();
        jMenuBar2 = new javax.swing.JMenuBar();
        jMenu2 = new javax.swing.JMenu();
        jMenu3 = new javax.swing.JMenu();
        jMenu4 = new javax.swing.JMenu();
        jMenuBar3 = new javax.swing.JMenuBar();
        jMenu5 = new javax.swing.JMenu();
        jMenu6 = new javax.swing.JMenu();
        jMenuBar4 = new javax.swing.JMenuBar();
        jMenu7 = new javax.swing.JMenu();
        jMenu8 = new javax.swing.JMenu();
        jMenuBar5 = new javax.swing.JMenuBar();
        jMenu9 = new javax.swing.JMenu();
        jMenu10 = new javax.swing.JMenu();
        jMenuBar6 = new javax.swing.JMenuBar();
        jMenu11 = new javax.swing.JMenu();
        jMenu12 = new javax.swing.JMenu();
        jMenuBar7 = new javax.swing.JMenuBar();
        jMenu13 = new javax.swing.JMenu();
        jMenu14 = new javax.swing.JMenu();
        jSeparator3 = new javax.swing.JSeparator();
        jLayeredPane1 = new javax.swing.JLayeredPane();
        jtfSearch = new javax.swing.JTextField();
        jlbSearch = new javax.swing.JLabel();
        jPanel1 = new javax.swing.JPanel();
        jPanel5 = new javax.swing.JPanel();
        jlbMaxS = new javax.swing.JLabel();
        jlbMinS = new javax.swing.JLabel();
        jlbAvgS = new javax.swing.JLabel();
        jlbWell = new javax.swing.JLabel();
        jlbGood = new javax.swing.JLabel();
        jlbMiddle = new javax.swing.JLabel();
        jlbPass = new javax.swing.JLabel();
        jlbFail = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jLabel11 = new javax.swing.JLabel();
        jLabel12 = new javax.swing.JLabel();
        jLabel13 = new javax.swing.JLabel();
        jLabel14 = new javax.swing.JLabel();
        jLabel15 = new javax.swing.JLabel();
        jTextField7 = new javax.swing.JTextField();
        jTextField8 = new javax.swing.JTextField();
        jTextField9 = new javax.swing.JTextField();
        jTextField10 = new javax.swing.JTextField();
        jTextField11 = new javax.swing.JTextField();
        jLabel16 = new javax.swing.JLabel();
        jLabel17 = new javax.swing.JLabel();
        jLabel18 = new javax.swing.JLabel();
        jLabel19 = new javax.swing.JLabel();
        jLabel20 = new javax.swing.JLabel();
        jLabel21 = new javax.swing.JLabel();
        jLabel22 = new javax.swing.JLabel();
        jLabel23 = new javax.swing.JLabel();
        jLabel25 = new javax.swing.JLabel();
        jLabel26 = new javax.swing.JLabel();
        jLabelM = new javax.swing.JLabel();
        jLabelm = new javax.swing.JLabel();
        jLabela = new javax.swing.JLabel();
        jLabels0 = new javax.swing.JLabel();
        jLabels1 = new javax.swing.JLabel();
        jLabels3 = new javax.swing.JLabel();
        jLabels2 = new javax.swing.JLabel();
        jLabels4 = new javax.swing.JLabel();
        jLabelp0 = new javax.swing.JLabel();
        jLabelp1 = new javax.swing.JLabel();
        jLabelp2 = new javax.swing.JLabel();
        jLabelp3 = new javax.swing.JLabel();
        jLabelp4 = new javax.swing.JLabel();
        jSeparator4 = new javax.swing.JSeparator();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jLabelfile = new javax.swing.JLabel();
        jlbScore = new javax.swing.JLabel();
        jlbAnalysis = new javax.swing.JLabel();
        jbSearch = new javax.swing.JButton();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        jmOpean0 = new javax.swing.JMenuItem();
        jmSave0 = new javax.swing.JMenuItem();
        jSeparator1 = new javax.swing.JPopupMenu.Separator();
        jmOpean1 = new javax.swing.JMenuItem();
        jmSave1 = new javax.swing.JMenuItem();
        jSeparator2 = new javax.swing.JPopupMenu.Separator();
        jmClear = new javax.swing.JMenuItem();

        jCheckBoxMenuItem1.setSelected(true);
        jCheckBoxMenuItem1.setText("jCheckBoxMenuItem1");

        jCheckBoxMenuItem2.setSelected(true);
        jCheckBoxMenuItem2.setText("jCheckBoxMenuItem2");

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 22, Short.MAX_VALUE)
        );

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );

        jMenu2.setText("File");
        jMenuBar2.add(jMenu2);

        jMenu3.setText("Edit");
        jMenuBar2.add(jMenu3);

        jMenu4.setText("jMenu4");

        jMenu5.setText("File");
        jMenuBar3.add(jMenu5);

        jMenu6.setText("Edit");
        jMenuBar3.add(jMenu6);

        jMenu7.setText("File");
        jMenuBar4.add(jMenu7);

        jMenu8.setText("Edit");
        jMenuBar4.add(jMenu8);

        jMenu9.setText("File");
        jMenuBar5.add(jMenu9);

        jMenu10.setText("Edit");
        jMenuBar5.add(jMenu10);

        jMenu11.setText("File");
        jMenuBar6.add(jMenu11);

        jMenu12.setText("Edit");
        jMenuBar6.add(jMenu12);

        jMenu13.setText("File");
        jMenuBar7.add(jMenu13);

        jMenu14.setText("Edit");
        jMenuBar7.add(jMenu14);

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("ScoreAnalysisSystem");

        jLayeredPane1.setBackground(new java.awt.Color(204, 204, 255));
        jLayeredPane1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        jtfSearch.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jtfSearchActionPerformed(evt);
            }
        });

        jlbSearch.setText("       输入学号或姓名或成绩可以自动查询，点击表头列头可以排序");
        jlbSearch.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        jPanel5.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        jlbMaxS.setText("最高分");

        jlbMinS.setText("最低分");

        jlbAvgS.setText("平均分");

        jlbWell.setText("优秀 （ 90 - 100 ）");

        jlbGood.setText("良好 （ 80 - 89 ）");

        jlbMiddle.setText("中等 （ 70 - 79 ）");

        jlbPass.setText("及格 （ 60 - 69 ）");

        jlbFail.setText("不及格（ 0 - 59 ）");

        jButton1.setText("显示柱状分析图");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("显示饼状分析图");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jLabel11.setText("人,占");

        jLabel12.setText("人,占");

        jLabel13.setText("人,占");

        jLabel14.setText("人,占");

        jLabel15.setText("人,占");

        jTextField7.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField7ActionPerformed(evt);
            }
        });

        jTextField8.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField8ActionPerformed(evt);
            }
        });

        jTextField9.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField9ActionPerformed(evt);
            }
        });

        jTextField10.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField10ActionPerformed(evt);
            }
        });

        jTextField11.setToolTipText("");
        jTextField11.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField11ActionPerformed(evt);
            }
        });

        jLabel16.setText(" %");

        jLabel17.setText(" %");

        jLabel18.setText(" %");

        jLabel19.setText(" %");

        jLabel20.setText(" %");

        jLabel21.setText(" %");

        jLabel22.setText(" %");

        jLabel23.setText(" %");

        jLabel25.setText(" %");

        jLabel26.setText(" %");

        jLabelM.setBackground(new java.awt.Color(255, 255, 255));
        jLabelM.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelm.setBackground(new java.awt.Color(255, 255, 255));
        jLabelm.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabela.setBackground(new java.awt.Color(255, 255, 255));
        jLabela.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabels0.setBackground(new java.awt.Color(255, 255, 255));
        jLabels0.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabels1.setBackground(new java.awt.Color(255, 255, 255));
        jLabels1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabels3.setBackground(new java.awt.Color(255, 255, 255));
        jLabels3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabels2.setBackground(new java.awt.Color(255, 255, 255));
        jLabels2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabels4.setBackground(new java.awt.Color(255, 255, 255));
        jLabels4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelp0.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelp1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelp2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelp3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jLabelp4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel5Layout.createSequentialGroup()
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jlbMinS, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jlbMaxS, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jlbGood, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jlbPass, javax.swing.GroupLayout.DEFAULT_SIZE, 122, Short.MAX_VALUE)
                            .addComponent(jlbMiddle, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jlbFail)
                            .addComponent(jlbAvgS, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabelm, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabelM, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabela, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel5Layout.createSequentialGroup()
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jlbWell, javax.swing.GroupLayout.PREFERRED_SIZE, 122, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                                        .addComponent(jLabels0, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabels1, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabels3, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE))
                                    .addComponent(jLabels4, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabels2, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jLabel14, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabel15, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabel13, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabel12, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabel11, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jLabelp1, javax.swing.GroupLayout.DEFAULT_SIZE, 37, Short.MAX_VALUE)
                                    .addComponent(jLabelp3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabelp4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabelp2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabelp0, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                .addGap(18, 18, 18)
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabel23, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabel25, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabel26, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabel22, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabel21, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 127, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 129, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(15, 15, 15)))
                        .addGap(325, 325, 325)
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel16, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel17, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel18, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jTextField10, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel19, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jTextField11, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel20, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)))))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addGap(32, 32, 32)
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jlbMaxS, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabelM, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabelm, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jlbMinS, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jlbAvgS, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabela, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(39, 39, 39)
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(jPanel5Layout.createSequentialGroup()
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jLabels0, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                        .addComponent(jLabel11, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabel16, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                                    .addComponent(jlbWell, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jLabelp0, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabelp1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                        .addComponent(jlbGood)
                                        .addComponent(jLabel12, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabel17, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabels1, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addComponent(jLabel26, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))))
                            .addComponent(jLabel22, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                                .addComponent(jLabels2, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                    .addComponent(jLabel21, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabel14, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jLabelp2, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)))
                            .addComponent(jlbMiddle, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(11, 11, 11))
                    .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                        .addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jLabel18, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(jlbPass, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                        .addComponent(jLabel25, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jLabel13, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jLabelp3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                    .addComponent(jLabels3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel5Layout.createSequentialGroup()
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jTextField10, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel19, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel15, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jTextField11, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel20, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel5Layout.createSequentialGroup()
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jlbFail, javax.swing.GroupLayout.DEFAULT_SIZE, 24, Short.MAX_VALUE)
                                    .addComponent(jLabel23, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                                .addGap(31, 31, 31))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jLabels4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addGap(32, 32, 32))
                            .addGroup(jPanel5Layout.createSequentialGroup()
                                .addComponent(jLabelp4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addGap(32, 32, 32)))
                        .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jButton1)
                            .addComponent(jButton2))))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null},
                {null, null, null},
                {null, null, null},
                {null, null, null}
            },
            new String [] {
                "学号", "姓名", "成绩"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.String.class, java.lang.String.class, java.lang.Integer.class
            };

            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }
        });
        jScrollPane2.setViewportView(jTable1);
        if (jTable1.getColumnModel().getColumnCount() > 0) {
            jTable1.getColumnModel().getColumn(0).setHeaderValue("学号");
            jTable1.getColumnModel().getColumn(1).setHeaderValue("姓名");
            jTable1.getColumnModel().getColumn(2).setHeaderValue("成绩");
        }

        jLabelfile.setText("  ");
        jLabelfile.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(0, 0, 0)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabelfile, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 397, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 397, Short.MAX_VALUE)))
                .addContainerGap())
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addGap(0, 0, Short.MAX_VALUE)
                    .addComponent(jSeparator4, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 0, Short.MAX_VALUE)))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(jPanel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jScrollPane2))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabelfile, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addGap(0, 235, Short.MAX_VALUE)
                    .addComponent(jSeparator4, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 236, Short.MAX_VALUE)))
        );

        jlbScore.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N
        jlbScore.setText(" 成绩单");

        jlbAnalysis.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N
        jlbAnalysis.setText("  数据分析");

        jbSearch.setText("查找");
        jbSearch.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jbSearchActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jLayeredPane1Layout = new javax.swing.GroupLayout(jLayeredPane1);
        jLayeredPane1.setLayout(jLayeredPane1Layout);
        jLayeredPane1Layout.setHorizontalGroup(
            jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGroup(jLayeredPane1Layout.createSequentialGroup()
                .addComponent(jtfSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 270, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jbSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jlbSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 477, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addGroup(jLayeredPane1Layout.createSequentialGroup()
                .addComponent(jlbScore, javax.swing.GroupLayout.PREFERRED_SIZE, 389, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(155, 155, 155)
                .addComponent(jlbAnalysis, javax.swing.GroupLayout.PREFERRED_SIZE, 372, javax.swing.GroupLayout.PREFERRED_SIZE))
        );
        jLayeredPane1Layout.setVerticalGroup(
            jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jLayeredPane1Layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jtfSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jbSearch)
                    .addComponent(jlbSearch))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jlbScore, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jlbAnalysis, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
        );
        jLayeredPane1.setLayer(jtfSearch, javax.swing.JLayeredPane.DEFAULT_LAYER);
        jLayeredPane1.setLayer(jlbSearch, javax.swing.JLayeredPane.DEFAULT_LAYER);
        jLayeredPane1.setLayer(jPanel1, javax.swing.JLayeredPane.DEFAULT_LAYER);
        jLayeredPane1.setLayer(jlbScore, javax.swing.JLayeredPane.DEFAULT_LAYER);
        jLayeredPane1.setLayer(jlbAnalysis, javax.swing.JLayeredPane.DEFAULT_LAYER);
        jLayeredPane1.setLayer(jbSearch, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jMenu1.setText("文件");

        jmOpean0.setText("打开文本文件成绩");
        jmOpean0.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jmOpean0ActionPerformed(evt);
            }
        });
        jMenu1.add(jmOpean0);

        jmSave0.setText("另存为文本文件成绩");
        jmSave0.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jmSave0ActionPerformed(evt);
            }
        });
        jMenu1.add(jmSave0);
        jMenu1.add(jSeparator1);

        jmOpean1.setText("打开对象文件成绩");
        jmOpean1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jmOpean1ActionPerformed(evt);
            }
        });
        jMenu1.add(jmOpean1);

        jmSave1.setText("另存为对象文件成绩");
        jmSave1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jmSave1ActionPerformed(evt);
            }
        });
        jMenu1.add(jmSave1);
        jMenu1.add(jSeparator2);

        jmClear.setText("清除数据");
        jmClear.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jmClearActionPerformed(evt);
            }
        });
        jMenu1.add(jmClear);

        jMenuBar1.add(jMenu1);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 828, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jSeparator3, javax.swing.GroupLayout.DEFAULT_SIZE, 1, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jSeparator3, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

        pack();
    }// </editor-fold>                        

    private void jmOpean1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        studentList.clear();                                                            // 清空线性表
        JFileChooser filechooser = new JFileChooser();
        if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){
                File file = filechooser.getSelectedFile();
                try{
                    DataInputStream input = new DataInputStream
                                    ( new FileInputStream(file) );
                    while(true){
                        String id = "" ;String name = "" ;int score=0;
                        String s = input.readUTF();
//                        System.out.println(s);
                        if( s.length() == 0 ) continue;
                        StringBuilder sb = new StringBuilder();
                        sb.append(s); int cnt = 0 ;
                        for( int i = 0 ; i < sb.length(); ++i ){
                            char op = sb.charAt(i);
                            if( op  == ',' ) { cnt++; continue ; }
                            if( cnt == 0 ) id += op;
                            else if( cnt == 1 ) name += op;
                            else {
                                score = score * 10 + (op-'0');
                            }
                        }
                        studentList.add( new Student(id,name,score) );
                    }
                }
                catch( EOFException ex){
                    System.out.println("All data read");
                }
                catch (IOException ex) {
                    ex.printStackTrace();
                }
                updateDate();                                                                       //更新最高最低分，百分比
                jLabelM.setText(maxScore+"");
                jLabelm.setText(minScore+"");
                jLabela.setText(averageScore+"");
                jLabels0.setText(cnt[0]+"");
                jLabels1.setText(cnt[1]+"");
                jLabels2.setText(cnt[2]+"");
                jLabels3.setText(cnt[3]+"");
                jLabels4.setText(cnt[4]+"");
                jLabelp0.setText(String.format("%.2f",percent[0]));
                jLabelp1.setText(String.format("%.2f",percent[1]));
                jLabelp2.setText(String.format("%.2f",percent[2]));
                jLabelp3.setText(String.format("%.2f",percent[3]));
                jLabelp4.setText(String.format("%.2f",percent[4]));   
                jLabelfile.setText(file.getAbsolutePath()+"，共"+ tot + "人" );

                DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel();
                TableRowSorter<TableModel> sorter = 
                      new TableRowSorter<TableModel>(dtm);
                this.jTable1.setRowSorter(sorter);
                
                while( dtm.getRowCount() != 0 ) {                                                   //清空jtable
                    dtm.removeRow(0);
                }
                
                for( int i = 0 ; i < studentList.size() ; ++i ) {                                   //studentList写入jTable
                    Student tmp = (Student)studentList.get(i);
                    Vector v = new Vector();
                    v.add(tmp.get_id());v.add(tmp.get_name());v.add(tmp.get_score());
                    dtm.addRow(v);
                }
        }
    }                                        

    private void jmClearActionPerformed(java.awt.event.ActionEvent evt) {                                        
        DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel();
        while( dtm.getRowCount() != 0 ) {                                                   //清空jtable
            dtm.removeRow(0);
        }
        jLabelM.setText(null);
        jLabelm.setText(null);
        jLabela.setText(null);
        jLabels0.setText(null);
        jLabels1.setText(null);
        jLabels2.setText(null);
        jLabels3.setText(null);
        jLabels4.setText(null);
        jLabelp0.setText(null);
        jLabelp1.setText(null);
        jLabelp2.setText(null);
        jLabelp3.setText(null);
        jLabelp4.setText(null);         
        jLabelfile.setText(null);
    }                                       

    private void jtfSearchActionPerformed(java.awt.event.ActionEvent evt) {                                          
        String text = jtfSearch.getText();
        TableRowSorter<TableModel> sorter = 
                      new TableRowSorter<TableModel>(jTable1.getModel());
        this.jTable1.setRowSorter(sorter);
           if( text.trim().length() == 0 )
               sorter.setRowFilter(null);
           else 
               sorter.setRowFilter(RowFilter.regexFilter(text));
    }                                         

    private void jmOpean0ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        
        studentList.clear();                                                            // 清空线性表
        JFileChooser filechooser = new JFileChooser();
        if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){
                File file = filechooser.getSelectedFile();
                Scanner input = null;
            try {
                input = new Scanner(file,"UTF-8");
            } catch (FileNotFoundException ex) {
                Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
            }
                while( input.hasNext() ) {
                    String id = "" ;String name = "" ;int score=0;
                    String s = input.nextLine();
                    if( s.length() == 0 ) continue;
                    StringBuilder sb = new StringBuilder();
                    sb.append(s); int cnt = 0 ;
                    for( int i = 0 ; i < sb.length(); ++i ){
                        char op = sb.charAt(i);
                        if( op  == ',' ) { cnt++; continue ; }
                        if( cnt == 0 ) id += op;
                        else if( cnt == 1 ) name += op;
                        else {
                            score = score * 10 + (op-'0');
                        }
                    }
                    studentList.add( new Student(id,name,score) );
                }
                
                updateDate();                                                                       //更新最高最低分，百分比
                jLabelM.setText(maxScore+"");
                jLabelm.setText(minScore+"");
                jLabela.setText(averageScore+"");
                jLabels0.setText(cnt[0]+"");
                jLabels1.setText(cnt[1]+"");
                jLabels2.setText(cnt[2]+"");
                jLabels3.setText(cnt[3]+"");
                jLabels4.setText(cnt[4]+"");
                jLabelp0.setText(String.format("%.2f",percent[0]));
                jLabelp1.setText(String.format("%.2f",percent[1]));
                jLabelp2.setText(String.format("%.2f",percent[2]));
                jLabelp3.setText(String.format("%.2f",percent[3]));
                jLabelp4.setText(String.format("%.2f",percent[4]));         
                jLabelfile.setText(file.getAbsolutePath()+"，共"+ tot + "人" );
                
//                jTextField12 = new JTextField(""+maxcost);
                input.close();
                
                DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel();
                TableRowSorter<TableModel> sorter = 
                      new TableRowSorter<TableModel>(dtm);
                this.jTable1.setRowSorter(sorter);
                
                while( dtm.getRowCount() != 0 ) {                                                   //清空jtable
                    dtm.removeRow(0);
                }
                
                for( int i = 0 ; i < studentList.size() ; ++i ) {                                   //studentList写入jTable
                    Student tmp = (Student)studentList.get(i);
                    Vector v = new Vector();
                    v.add(tmp.get_id()); v.add(tmp.get_name());  v.add(tmp.get_score());
                    dtm.addRow(v);
                }
        }
    }                                        

    private void jTextField11ActionPerformed(java.awt.event.ActionEvent evt) {                                             
        // TODO add your handling code here:
    }                                            

    private void jTextField10ActionPerformed(java.awt.event.ActionEvent evt) {                                             
        // TODO add your handling code here:
    }                                            

    private void jTextField9ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jTextField8ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jTextField7ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        NewJFrame3 frame = new NewJFrame3(cnt);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setSize(400, 400);
        frame.setLocationRelativeTo(null);
    }                                        

    private void jmSave0ActionPerformed(java.awt.event.ActionEvent evt) {                                        
        JFileChooser filechooser = new JFileChooser();
        if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){
            File file = filechooser.getSelectedFile();
            try {
                PrintWriter output = new PrintWriter(file);
                for( int i = 0 ; i < studentList.size() ; ++i ) {
                    Student tmp = (Student)studentList.get(i);
                    output.println(tmp.get_id()+","+tmp.get_name()+","+tmp.get_score()+"
");
                }
                output.close();
            } catch (FileNotFoundException ex) {
                Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }                                       

    private void jbSearchActionPerformed(java.awt.event.ActionEvent evt) {                                         
        String text = jtfSearch.getText();
        TableRowSorter<TableModel> sorter = 
                      new TableRowSorter<TableModel>(jTable1.getModel());
        this.jTable1.setRowSorter(sorter);
           if( text.trim().length() == 0 )
               sorter.setRowFilter(null);
           else 
               sorter.setRowFilter(RowFilter.regexFilter(text));
    }                                        

    private void jmSave1ActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        JFileChooser filechooser = new JFileChooser();
        if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){
            File file = filechooser.getSelectedFile();
            try {
                DataOutputStream output = new DataOutputStream
                        ( new FileOutputStream(file));
                for( int i = 0 ; i < studentList.size() ; ++i ) {
                    Student tmp = (Student)studentList.get(i);
                    output.writeUTF(tmp.get_String());
                }
                output.close();
            } catch (FileNotFoundException ex) {
                Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
            } catch (IOException ex) {
                Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }                                       

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        NewJFrame5 frame = new NewJFrame5(percent);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setSize(400, 400);
        frame.setLocationRelativeTo(null);
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Test().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem1;
    private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem2;
    private javax.swing.JLabel jLabel11;
    private javax.swing.JLabel jLabel12;
    private javax.swing.JLabel jLabel13;
    private javax.swing.JLabel jLabel14;
    private javax.swing.JLabel jLabel15;
    private javax.swing.JLabel jLabel16;
    private javax.swing.JLabel jLabel17;
    private javax.swing.JLabel jLabel18;
    private javax.swing.JLabel jLabel19;
    private javax.swing.JLabel jLabel20;
    private javax.swing.JLabel jLabel21;
    private javax.swing.JLabel jLabel22;
    private javax.swing.JLabel jLabel23;
    private javax.swing.JLabel jLabel25;
    private javax.swing.JLabel jLabel26;
    private javax.swing.JLabel jLabelM;
    private javax.swing.JLabel jLabela;
    private javax.swing.JLabel jLabelfile;
    private javax.swing.JLabel jLabelm;
    private javax.swing.JLabel jLabelp0;
    private javax.swing.JLabel jLabelp1;
    private javax.swing.JLabel jLabelp2;
    private javax.swing.JLabel jLabelp3;
    private javax.swing.JLabel jLabelp4;
    private javax.swing.JLabel jLabels0;
    private javax.swing.JLabel jLabels1;
    private javax.swing.JLabel jLabels2;
    private javax.swing.JLabel jLabels3;
    private javax.swing.JLabel jLabels4;
    private javax.swing.JLayeredPane jLayeredPane1;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu10;
    private javax.swing.JMenu jMenu11;
    private javax.swing.JMenu jMenu12;
    private javax.swing.JMenu jMenu13;
    private javax.swing.JMenu jMenu14;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenu jMenu4;
    private javax.swing.JMenu jMenu5;
    private javax.swing.JMenu jMenu6;
    private javax.swing.JMenu jMenu7;
    private javax.swing.JMenu jMenu8;
    private javax.swing.JMenu jMenu9;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuBar jMenuBar2;
    private javax.swing.JMenuBar jMenuBar3;
    private javax.swing.JMenuBar jMenuBar4;
    private javax.swing.JMenuBar jMenuBar5;
    private javax.swing.JMenuBar jMenuBar6;
    private javax.swing.JMenuBar jMenuBar7;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JPopupMenu.Separator jSeparator1;
    private javax.swing.JPopupMenu.Separator jSeparator2;
    private javax.swing.JSeparator jSeparator3;
    private javax.swing.JSeparator jSeparator4;
    private javax.swing.JTable jTable1;
    private javax.swing.JTextField jTextField10;
    private javax.swing.JTextField jTextField11;
    private javax.swing.JTextField jTextField7;
    private javax.swing.JTextField jTextField8;
    private javax.swing.JTextField jTextField9;
    private javax.swing.JButton jbSearch;
    private javax.swing.JLabel jlbAnalysis;
    private javax.swing.JLabel jlbAvgS;
    private javax.swing.JLabel jlbFail;
    private javax.swing.JLabel jlbGood;
    private javax.swing.JLabel jlbMaxS;
    private javax.swing.JLabel jlbMiddle;
    private javax.swing.JLabel jlbMinS;
    private javax.swing.JLabel jlbPass;
    private javax.swing.JLabel jlbScore;
    private javax.swing.JLabel jlbSearch;
    private javax.swing.JLabel jlbWell;
    private javax.swing.JMenuItem jmClear;
    private javax.swing.JMenuItem jmOpean0;
    private javax.swing.JMenuItem jmOpean1;
    private javax.swing.JMenuItem jmSave0;
    private javax.swing.JMenuItem jmSave1;
    private javax.swing.JTextField jtfSearch;
    // End of variables declaration                   

}

 NewJFrame3（柱状图，传参int[] ）

package scoreaynalysissystem;
import javax.swing.*;
import java.awt.*;

public class NewJFrame3 extends JFrame{
    public NewJFrame3(int[] data){
        add(new NewJFrame4(data));
    }
    public class NewJFrame4 extends JPanel{
    
    
    private boolean filled = false;

    private int[] data;
    public NewJFrame4() {
    }
   
    public NewJFrame4(int[] data) {
        this.data=data;
    }
    public NewJFrame4(boolean filled){
       
        this.filled=filled;
    }
    protected void paintComponent(Graphics g){
        super.paintComponent(g);
        
        int width = getWidth();
        int height = getHeight(); 
        int gap=20,aa=(int)(height*0.8/11),a2=(int)((0.8*width-6*gap)/5);
       
               g.drawRect((int)(0.1*width), (int)(0.1*height), (int)(0.8*width), (int)(0.8*height));
               g.drawString(String.valueOf(data[0]),(int)(0.1*width+gap)+a2/2-1,(int)(height-0.1*height-aa*data[0])-5);
               g.drawString("优秀",(int)(0.1*width+gap)+a2/2-10,(int)(height-0.1*height+12));
               g.setColor(Color.black);
               g.setColor(Color.green);
               g.fillRect((int)(0.1*width+gap), (int)(height-0.1*height-aa*data[0]), a2, aa*data[0]);               
              
               g.setColor(Color.black);
               g.drawString(String.valueOf(data[1]),(int)(0.1*width+2*gap+a2)+a2/2-1,(int)(height-0.1*height-aa*data[1])-5 );
               g.drawString("良好",(int)(0.1*width+2*gap+a2)+a2/2-10,(int)(height-0.1*height+12));
               g.setColor(Color.black);
               g.setColor(Color.blue);
               g.fillRect((int)(0.1*width+2*gap+a2), (int)(height-0.1*height-aa*data[1]),a2, aa*data[1]);
               
               g.setColor(Color.black);
               g.drawString(String.valueOf(data[2]),(int)(0.1*width+3*gap+2*a2)+a2/2-1, (int)(height-0.1*height-aa*data[2])-5);
               g.drawString("中等",(int)(0.1*width+3*gap+2*a2)+a2/2-10,(int)(height-0.1*height+12));
               g.setColor(Color.black);
               g.setColor(Color.orange);
               g.fillRect((int)(0.1*width+3*gap+2*a2), (int)(height-0.1*height-aa*data[2]),a2, aa*data[2]);
               
               g.setColor(Color.black);
               g.drawString(String.valueOf(data[3]),(int)(0.1*width+4*gap+3*a2)+a2/2-1, (int)(height-0.1*height-aa*data[3])-5);
               g.drawString("及格",(int)(0.1*width+4*gap+3*a2)+a2/2-10,(int)(height-0.1*height+12));
               g.setColor(Color.black);
               g.setColor(Color.yellow);
               g.fillRect((int)(0.1*width+4*gap+3*a2), (int)(height-0.1*height-aa*data[3]),a2, aa*data[3]);
               
               g.setColor(Color.black);
               g.drawString(String.valueOf(data[4]),(int)(0.1*width+5*gap+4*a2)+a2/2-1, (int)(height-0.1*height-aa*data[4])-5);
               g.drawString("不及格",(int)(0.1*width+5*gap+4*a2)+a2/2-15,(int)(height-0.1*height+12));
               g.setColor(Color.black);
               g.setColor(Color.red);
               g.fillRect((int)(0.1*width+5*gap+4*a2), (int)(height-0.1*height-aa*data[4]),a2, aa*data[4]);
               
               
        }
        
    
    public boolean isFilled() {
        return filled;
    }

    public void setFilled(boolean filled) {
        this.filled = filled;
         repaint();
    }
    public Dimension getPreferredSize(){
        return new Dimension(80,80);
    }
}
    
}

NewJFrame5(饼状图，传参 double[] )

package scoreaynalysissystem;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.*;
import javax.swing.*;


public class NewJFrame5 extends JFrame{
    public NewJFrame5(double[] data){
        add(new NewJFrame6(data));
    }
    public class NewJFrame6 extends JPanel{
    
    
    private boolean filled = false;

    private double[] data;
    public NewJFrame6() {
    }
   
    public NewJFrame6(double[] data) {
        this.data=data;
    }
    public NewJFrame6(boolean filled){
       
        this.filled=filled;
    }
    protected void paintComponent(Graphics g){
        super.paintComponent(g);
        
        int width = getWidth()/2;
        int height = getHeight()/2; 
        int radius = (int)(Math.min(getWidth(), getHeight())*0.4);
        int d=2*radius;
        int x = width-radius;
        int y = height-radius;
        String[] str = {String.format("%5.2f", data[0]),String.format("%5.2f", data[1]),String.format("%5.2f", data[2]),String.format("%5.2f", data[3]),
        String.format("%5.2f", data[4])};
        
        int[] a2={(int)(360*data[0]/100),(int)(360*data[1]/100),(int)(360*data[2]/100),(int)(360*data[3]/100),(int)(360*data[4]/100)};
        
        
        g.setColor(Color.green);
        g.fillRect(5, 20, 10, 10);
        g.fillArc(x, y,d,d, 0, a2[0]);
        
        g.setColor(Color.blue);
        g.fillRect(5, 40, 10, 10);
        g.fillArc(x, y,d,d, a2[0], a2[1]);
        
        g.setColor(Color.orange);
         g.fillRect(5, 60, 10, 10);
        g.fillArc(x, y,d,d, a2[0]+a2[1], a2[2]);
        
        g.setColor(Color.yellow);
        g.fillRect(5, 80, 10, 10);
        g.fillArc(x, y,d,d, a2[0]+a2[1]+a2[2],a2[3]);
        
        g.setColor(Color.red);
        g.fillRect(5, 100, 10, 10);
        g.fillArc(x, y,d,d,a2[0]+a2[1]+a2[2]+a2[3] ,a2[4]);
        
        g.setColor(Color.black);
        g.drawString("优秀"+str[0]+"%",  20, 30);
        g.drawString("良好"+str[1]+"%",  20, 50);
        g.drawString("中等"+str[2]+"%",  20, 70);
        g.drawString("良好"+str[3]+"%",  20, 90);
        g.drawString("不及格"+str[4]+"%",  20, 110);
    }
    public boolean isFilled() {
        return filled;
    }
    public void setFilled(boolean filled) {
        this.filled = filled;
         repaint();
    }
    public Dimension getPreferredSize(){
        return new Dimension(80,80);
    }
}
    
}

Student (信息类型类)

package scoreaynalysissystem;
public class Student {
    private String id ;
    private String name;
    private int score ;
    Student (){
    }
    Student ( String id ,String name , int score ) {
        this.id = id ; this.name = name ; this.score = score ; 
    }
    public void set_id( String id ){
        this.id = id ;
    }
    public void set_name( String name ){
        this.name = name ;
    }
    public void set_score( int score ){
        this.score = score ;
    }
    public String get_id(){
        return this.id;
    }
    public String get_name(){
        return this.name ;
    }
    public int get_score(){
        return this.score;
    }
    public void show (){
        System.out.println( this.id + "," + this.name + "," + this.score );
    }
    public String get_String (){
        return this.id + "," + this.name + "," + this.score ;
    }
    public boolean eaquals( Student x ){
        return ( this.score == x.score );
    }
    public int Compareable( Student x ){
        if( this.score == x.score ) return 0 ;
        else if( this.score > x.score ) return 1 ;
        else return -1 ;
    }
}