技術標籤：java經驗分享

package csdn;

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

public class Homework5 {

	public static void main(String[] args) {
		//計算兩日期之間的天數
		//鍵盤輸入
		Scanner sc = new Scanner(System.in);
		System.out.println("請輸入你的出生的年份（xxxx xx xx）");
		int
 
 y= 0,m=0, d=0;
		y=sc.nextInt();
		m=sc.nextInt();
		d=sc.nextInt();
		
		var c = Calendar.getInstance();
		c.set(Calendar.YEAR,y);
		c.set(Calendar.MONTH,m);
		c.set(Calendar.DATE,d);
		long t1= c.getTimeInMillis();
		long t2=System.currentTimeMillis();
		long days =(t2-t1)/1000/60/60/24;
		var d3 = new Date(
 
t2);
		System.out.printf("%s 到 %s 共有 %d 天。",String.format("%d年%d月%d日",y,m,d),String.format("%1$tY年%1$tm月%1$td日",d3),days);
	}

}

輸出結果