java输入日期输出后一天

Posted 2023-04-24

package com;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;

public class Test 

    public static void main(String[] args) 

        try 
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            System.out.println("请输入日期。如2017-11-01");
            Scanner scan = new Scanner(System.in);
            String read = scan.nextLine();
            Date date = formatter.parse(read);
            System.out.println("退后一天日期为：" + formatter.format(addDateOneDay(date)));
         catch (ParseException e) 
            // TODO Auto-generated catch block
            // e.printStackTrace();
            System.out.println("录入错误，程序结束！");
        

    

    public static Date addDateOneDay(Date date) 
        if (null == date) 
            return date;
        
        Calendar c = Calendar.getInstance();
        c.setTime(date); // 设置当前日期
        c.add(Calendar.DATE, 1); // 日期加1天
        date = c.getTime();
        return date;
    

参考技术A public class MyTest
public static void main(String[] args)
Date date = getDayDate(new Date(), 2);
System.out.println(new SimpleDateFormat("yyyy年MM月dd日").format(date));

private static Date getDayDate(Date date, int i)
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DATE, i);
return calendar.getTime();

PHP前一天，后一天，日期问题

 

date_default_timezone_set(‘PRC‘); //默认时区     

echo "今天:",date("Y-m-d",time()),"<br>";     
echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"<br>";     
echo "昨天:",date("Y-m-d",strtotime("-1 day")), "<br>";     
echo "明天:",date("Y-m-d",strtotime("+1 day")), "<br>";     
echo "一周后:",date("Y-m-d",strtotime("+1 week")), "<br>";     
echo "一周零两天四小时两秒后:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "<br>";     
echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")), "<br>";     
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";     
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";     
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";     
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>";