JavaEE编程实验 实验1 Java常用工具类编程（未完成）

1.使用String类分割split将字符串“Solutions to selected exercises can be found in the electronic document The Thinking in Java Annotated Solution Guide,available for a small fee from BruceEckel”单词提取输出，单词以空格或','分隔

public static void main(String[] args) {
        String str="Solutions to selected exercises can be found in the electronic document The Thinking in Java Annotated Solution Guide,available for a small fee from BruceEckel";
        String[] string=str.split(" |,");
        for (String string2 : string) {
            System.out.print(string2+",");
        }
    }

2.设计一个类Student，类的属性有姓名，学号，出生日期，性别，所在系等。并生成学生类对象数组存储学生数据，然后按照学生的姓名将学生排序输出，使用String类的compareTo方法。函数原型输入两个学生对象，返回一个整型数字表示大小，以学生姓名为排序依据。

package com.littlepage.test2;

import java.util.Date;

public class Student implements Comparable<Student>{
    private String name;
    private int stuNum;
    private Date birthDate;
    private String sex;
    private String department;
    public Student() {
        name="";
        stuNum=0;
        birthDate=new Date();
        sex="男";
        department="";
    }
    public Student(String name, int stuNum, Date birthDate, String sex, String department) {
        super();
        this.name = name;
        this.stuNum = stuNum;
        this.birthDate = birthDate;
        this.sex = sex;
        this.department = department;
    }
    @Override
    public String toString() {
        return "Student [name=" + name + ", stuNum=" + stuNum + ", birthDate=" + birthDate + ", sex=" + sex
                + ", department=" + department + "]";
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getStuNum() {
        return stuNum;
    }
    public void setStuNum(int stuNum) {
        this.stuNum = stuNum;
    }
    public Date getBirthDate() {
        return birthDate;
    }
    public void setBirthDate(Date birthDate) {
        this.birthDate = birthDate;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public String getDepartment() {
        return department;
    }
    public void setDepartment(String department) {
        this.department = department;
    }
    @Override
    public int compareTo(Student o) {
        return this.getName().compareTo(o.getName());
    }
}

3.设计一个程序，计算任意的一个日期与系统当前日期相差天数

public static void main(String[] args) {  
        Calendar c=Calendar.getInstance();  
        int y=2018;//年  
        int M=11;//月  
        int d=10;//日  
        int H=0;//时  
        int m=0;//分  
        int s=0;//秒  
        c.set(Calendar.YEAR, y);  
        c.set(Calendar.MONTH, M-1);  
        c.set(Calendar.DATE, d);  
        c.set(Calendar.HOUR_OF_DAY, H);  
        c.set(Calendar.MINUTE, m);  
        c.set(Calendar.SECOND, s);  
        Calendar now=Calendar.getInstance();  
        long aTime=now.getTimeInMillis();  
        long bTime=c.getTimeInMillis();  
        long cTime=aTime-bTime;  
        long sTime=cTime/1000;//时间差，单位：秒  
        long mTime=sTime/60;  
        long hTime=mTime/60;  
        long dTime=hTime/24;  
        SimpleDateFormat f=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
        System.out.println("当前时间："+f.format(now.getTime()));  
        System.out.println("设定时间："+f.format(c.getTime()));  
        System.out.println("时间差："+dTime+"天"+hTime%24+"时"+mTime%60+"分"+sTime%60+"秒");  
    }  

3.设计一个日历类等相关方法，按照图15.1样式编制一个日历程序，复习Swing等相关知识