日期的一些小练习

package com.java.Date.www;

import java.text.DateFormat;
import java.text.Format;
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;

public class DateDmeo2 {

 public static void main(String[] args) {
  Date data=new Date();
//  String str=DateFormat.getDateInstance(DateFormat.FULL).format(data);
//  Calendar str=Calendar.getInstance();
//  int year=str.get(Calendar.YEAR);
//  int mouth=str.get(Calendar.MONDAY);
//  int day=str.get(Calendar.DAY_OF_MONTH);
//  System.out.println(year+"年"+mouth+"月"+day+"日");
  
  
  
  

  System.out.println("------------------设置日期并且比较两个日期的大小----------------------------------------");

  Calendar c=Calendar.getInstance();
  Calendar c1=Calendar.getInstance();
  c.set(2012, 3, 27);
  c1.set(2013, 7, 29);
//  System.out.println(c.getTimeInMillis());
  long s=bijiao(c,c1);
  System.out.println(s);
  
  
  
  
  System.out.println("--------------给定那个年份并且判断2月有几天-------------------------------");
  //创建一个Scanner对象
  System.out.println("请输入你的年份");
  Scanner year1=new Scanner(System.in);
  System.out.println("请输入你的月份");
  Scanner month1=new Scanner(System.in);
  System.out.println("请输入你的几号");
  Scanner date1=new Scanner(System.in);
  int year=year1.nextInt();
  int month=month1.nextInt();
  int date=date1.nextInt();
  //定义个新的Scalendar 的日期默认值
  Calendar c2=Calendar.getInstance();
  //添加日期进入Scalendar;
  c2.set(year, month, date);
  String i=getday(year);
  System.out.println(i);
 }

 private static String getday(int year) {
  if(year%4==0&&year%100!=0||year%400==0){
   return "这个2月有29天";
  }else{
   return "这个2月有28天";
  }
 }

 private static long bijiao(Calendar c, Calendar c1) {
  if(c.compareTo(c1)>0){
   return c.getTimeInMillis()-c1.getTimeInMillis();
  }else if(c.compareTo(c1)<0){
   return c1.getTimeInMillis()-c.getTimeInMillis();
  }
  return 0;
 }

}