Question

java 当前系统时间 加一天怎么取得？

java 当前系统时间 加一天怎么取得？
在线等谢谢

Answer 1

java在当前系统时间加一天主要是使用calendar类的add方法，如下代码：

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

public class ceshi {

	public static void main(String[] args) {
		Date date = new Date();// 新建此时的的系统时间
		System.out.println(getNextDay(date));// 返回明天的时间

	}

	public static Date getNextDay(Date date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(date);
		calendar.add(Calendar.DAY_OF_MONTH, +1);//+1今天的时间加一天
		date = calendar.getTime();
		return date;
	}
}

运行结果：

Answer 2

import java.util.*;
import java.util.Date;
public class test
{

public static void main(String args[])
{

Calendar c = Calendar.getInstance();
c.setTime(new java.util.Date());
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH)+1;
int day = c.get(Calendar.DAY_OF_MONTH)+1;
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
int second = c.get(Calendar.SECOND);

System.out.println(month);
System.out.println(day);
System.out.println(hour);
System.out.println(minute);
}
}

Answer 3

Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH, 1);
System.out.println(c.getTime());

Answer 4

import java.util.Calendar;
public class Date {
public static void main(String[] args){
Calendar c=Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH, 1);
}

}

Answer 5

long now = System.currentTimeMillis()+24*60*60*1000;