四则运算

简单的四则运算：编程语言：java

psp表格：

		预计耗时（分钟）	实际耗时（分钟）
planning	计划	20	20
estimate	估计这个任务需要多少时间	5	5
development	开发	80	100
analysis	需求分析	10	10
design spec	生成设计文档	30	40
design review	设计复审	20	20
coding standerd	代码规范	20	20
design	具体设计	30	30
coding	具体编码	100	120
code review	代码复审	10	10
text	测试	20	20
reporting	报告	20	20
5text report	测试报告	5	5
size measurement	计算工作量	5	5
postmortem	事后总结	10	10
sum	合计	385	435

四则运算代码：

package Test_2;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class sizeyunsuan{
private JFrame frame = new JFrame("四则运算");
private Container c = frame.getContentPane();
private JTextField username = new JTextField();
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JButton cancel = new JButton("取消");
public sizeyunsuan(){ frame.setSize(300,200);
c.setLayout(new BorderLayout());
initFrame();
frame.setVisible(true);
}
private void initFrame()
{ //顶部
ok.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
new suanfa();
}
});
JPanel titlePanel = new JPanel();
titlePanel.setLayout(new FlowLayout());
titlePanel.add(new JLabel("学生登录"));
c.add(titlePanel,"North");
//中部表单
JPanel fieldPanel = new JPanel();
fieldPanel.setLayout(null);
JLabel l1 = new JLabel("学 号:");
l1.setBounds(50, 20, 50, 20);
JLabel l2 = new JLabel("密 码:");
l2.setBounds(50, 60, 50, 20);
fieldPanel.add(l1);
fieldPanel.add(l2);
username.setBounds(110,20,120,20);
password.setBounds(110,60,120,20);
fieldPanel.add(username);
fieldPanel.add(password);
c.add(fieldPanel,"Center"); //底部按钮
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(ok);
buttonPanel.add(cancel);
c.add(buttonPanel,"South"); }
public static void main(String[] args){ new sizeyunsuan(); }
}

package Test_2;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class yunsuan extends JFrame{
JLabel l1 = new JLabel("答对题数:");

private JFrame frame = new JFrame("四则运算");
private Container c = frame.getContentPane();
private JButton KO = new JButton("确定");
private JTextField A = new JTextField(6);
private JTextField AA = new JTextField(4);
private JTextField AAA = new JTextField(4);
private JTextField B = new JTextField(6);
private JTextField BB = new JTextField(4);
private JTextField BBB = new JTextField(4);
private JTextField C = new JTextField(6);
private JTextField CC = new JTextField(4);
private JTextField CCC = new JTextField(4);
private JTextField D = new JTextField(6);
private JTextField DD = new JTextField(4);
private JTextField DDD = new JTextField(4);
private JTextField E = new JTextField(6);
private JTextField EE = new JTextField(4);
private JTextField EEE = new JTextField(4);
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JTextField QQ = new JTextField(6);


int num=0;
int an[]=new int [5];
String bn[]=new String [5];
String cn[]=new String [5];
yunsuan(int a[],String b[])
{
an=a;
bn=b;

JPanel fieldPanel = new JPanel();

fieldPanel.add(A);A.setBounds(30, 10, 100, 20);
A.setVisible(true);
fieldPanel.add(AA);AA.setBounds(40, 10, 100, 20);
fieldPanel.add(AAA);AAA.setBounds(50, 10, 100, 20);
fieldPanel.add(B);B.setBounds(30, 15, 50, 20);
fieldPanel.add(BB);BB.setBounds(40, 15, 100, 20);
fieldPanel.add(BBB);BBB.setBounds(50, 10, 100, 20);
fieldPanel.add(C);C.setBounds(30, 20, 50, 20);
fieldPanel.add(CC);CC.setBounds(40, 20, 100, 20);
fieldPanel.add(CCC);CCC.setBounds(50, 10, 100, 20);
fieldPanel.add(D);D.setBounds(30, 25, 50, 20);
fieldPanel.add(DD);DD.setBounds(40, 25, 100, 20);
fieldPanel.add(DDD);DDD.setBounds(50, 10, 100, 20);
fieldPanel.add(E);E.setBounds(30, 30, 50, 20);
fieldPanel.add(EE);EE.setBounds(40, 30, 100, 20);
fieldPanel.add(EEE);EEE.setBounds(50, 10, 100, 20);
fieldPanel.add(KO);KO.setBounds(30, 50, 20, 20);
fieldPanel.add(l1);l1.setBounds(20, 60, 100, 20);
fieldPanel.add(QQ);QQ.setBounds(40, 70, 100, 20);

KO.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
cn[0]=AA.getText();
cn[1]=BB.getText();
cn[2]=CC.getText();
cn[3]=DD.getText();
cn[4]=EE.getText();
AAA.setText(String.valueOf(an[0]));
BBB.setText(String.valueOf(an[1]));
CCC.setText(String.valueOf(an[2]));
DDD.setText(String.valueOf(an[3]));
EEE.setText(String.valueOf(an[4]));
for(int i=0;i<an.length;i++)
if(String.valueOf(an[i]).equals(cn[i]))num++;
QQ.setText(String.valueOf(num));
}
});
fieldPanel.setVerifyInputWhenFocusTarget(true);


A.setText(bn[0]);
B.setText(bn[1]);
C.setText(bn[2]);
D.setText(bn[3]);
E.setText(bn[4]);

this.add(fieldPanel);
this.setBounds(400, 400, 250, 270);
this.setVisible(true);
}
}

package Test_2;
import java.util.Random;

public class suanfa {
int a,b,c,d;
int an[]=new int [5];
String bn[]=new String [5];
Random cn =new Random();
suanfa(){
int i=0;
do{
a=cn.nextInt(100);
b=cn.nextInt(100);
d=cn.nextInt(100)%4+1;
switch(d){
case 1:
an[i]=a+b;
bn[i]=String.valueOf(a)+"+"+String.valueOf(b)+"=";
i++;
break;
case 2:
an[i]=a-b;
bn[i]=String.valueOf(a)+"-"+String.valueOf(b)+"=";
i++;break;
case 3:an[i]=a*b;
bn[i]=String.valueOf(a)+"*"+String.valueOf(b)+"=";
i++;
break;
case 4:an[i]=a/b;
bn[i]=String.valueOf(a)+"/"+String.valueOf(b)+"=";
i++;break;
}
}while(i<5);
for(int j=0;j<bn.length;j++)
{System.out.println(bn[j]);System.out.println(an[j]);
}
new yunsuan(an,bn);
}

}

代码结果：