about time

package com.API;

import java.util.Calendar;
import java.util.Date;

public class TestTime {
    public static void main(String[] args) {
        //Date日期
        //Calendar 日历
        Date date = new Date();
        //当前的系统时间
        System.out.println(date);
        System.out.println(date.getYear());
        System.out.println(date.getMonth());
        //重点
        //set 设置时间
        //get 获取时间
        System.out.println(date.getTime());
        Calendar instance = Calendar.getInstance();
        System.out.println(instance);
        System.out.println(instance.get(Calendar.YEAR));
        System.out.println(instance.get(Calendar.MONTH) + 1);
        System.out.println(instance.get(Calendar.DATE));
        System.out.println(instance.get(Calendar.HOUR_OF_DAY));
        System.out.println(instance.get(Calendar.MINUTE));

    }
}

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