Java实现时间倒计时 java倒计时

精度为1s 只接收int型

import java.util.Scanner;public class conutdown {    public static void main(String[] args) {        Scanner scanner =new Scanner(System.in);        int time = 0;        int cd = 0;        int saveTime = 0;        System.out.println(“请输入倒计时的秒数：”);        saveTime = scanner.nextInt();        cd = saveTime;            System.out.println("准备倒计时" + saveTime + "秒");            while (time < saveTime) {///循环一次1s 当循环次数大于输入次数时 跳出循环                try {                    Thread.currentThread().sleep(1000);                } catch (InterruptedException e) {                    e.printStackTrace();                }                time++;///自增用于与savetime进行比较。                cd--;//自减实现倒计时。                System.out.println("还剩" + cd + "秒，已消耗" + time + "秒");            }               System.out.println(“计时结束”);        scanner.close();    }}