java-Calendar类+

package com.day10.Calendar;

import java.util.Calendar;

public class Demo1Calendar {

  /**
  * @param args
  * 常见对象(Calendar类的add()和set()方法)(掌握)
  * A:成员方法
  * public void add(int field,int amount)
  * public final void set(int year,int month,int date)
  * B:案例演示
  * Calendar类的成员方法使用
  */
  public static void main(String[] args) {
    Calendar c=Calendar.getInstance();//父类引用指向子类对象
    c.add(Calendar.MONTH, 1);//对指定的字段进行向前减或者向后加
    c.set(Calendar.YEAR,2000);//修改指定字段
    c.set(2000, 7,8);//修改了年月日
    System.out.println(c.get(Calendar.YEAR)+"年"+(c.get(Calendar.MONTH)+1)+"月"+
    c.get(Calendar.DAY_OF_MONTH)+"日"+getWeek(c.get(Calendar.DAY_OF_WEEK)));

  }
  public static String getWeek(int week)
  {
    String[] arr={"","星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
    return arr[week];
  }

}

posted @ 2018-01-02 21:32  简简单单zjl  阅读(104)  评论(0编辑  收藏  举报