Date类

/**
 * @Description Date类
 */
package com.chapter.demo07;

import java.util.Date;

public class Demo01 {

    public static void main(String[] args) {

        //1.创建Date对象
        Date s1 = new Date();   //今天
        System.out.println(s1.toString());
        System.out.println(s1.toLocaleString());

        Date s2 = new Date(s1.getTime()-(60*60*24*1000));   //昨天
        System.out.println(s2.toLocaleString());

        //2.方法 after before
        boolean b1 = s1.after(s2);
        System.out.println(b1);
        boolean b2 = s1.before(s2);
        System.out.println(b2);

        //比较 compareTo();
        int d = s2.compareTo(s1);
        System.out.println(d);

        //比较是否相等 equals()
        s1.equals(s2);

    }

}