Java 实现倒计时功能(由秒计算天、小时、分钟、秒)

网友投稿 545 2023-02-25


Java 实现倒计时功能(由秒计算天、小时、分钟、秒)

有时候会要求实现这样一个需求:

天、小时、分钟、秒的数值都是隔开的,服务器端只返回一个时间戳长度。

以下就是我的实现方案,力求减少对象生成、减小计算量:

import java.util.Timer;

import java.util.TimerTaskhttp://;

public class CountDownUtils {

private static long day = 0;

private static long hour = 0;

private static long minute = 0;

private static long second = 0;

private static boolean dayNotAlready = false;

private static boolean hourNotAlready = false;

private static boolean minuteNotAlready = false;

private static boolean secondNotAlready = false;

public static void main(String[] args) {

long totalSeconds = 60 * 60 * 24 * 34 + 21;

initData(totalSeconds);

new Timer().schedule(new TimerTask() {

public void run() {

if (secondNotAlready) {

startCount();

} else {

cancel();

}

}

}, 0, 1000);

}

/**

* 初始化赋值

*

* @param totalSeconds

*/

private static void initData(long totalSeconds) {

resetData();

if (totalSeconds > 0) {

secondNotAlready = true;

second = totalSeconds;

if (second http://>= 60) {

minuteNotAlready = true;

minute = second / 60;

second = second % 60;

if (minute >= 60) {

hourNotAlready = true;

hour = minute / 60;

minute = minute % 60;

if (hour > 24) {

dayNotAlready = true;

day = hour / 24;

hour = hour % 24;

}

}

}

}

System.out.println("初始格式化后——>" + day + "天" + hour + "小时" + minute

+ "分钟" + second + "秒");

}

private static void resetData() {

day = 0;

hour = 0;

minute = 0;

second = 0;

dayNotAlready = false;

hourNotAlready = false;

minuteNotAlready = false;

secondNotAlready = false;

}

/**

* 计算各个值的变动

*

*/

public static void startCount() {

if (secondNotAlready) {

if (second > 0) {

second--;

if (second == 0 && !minuteNotAlready) {

secondNotAlready = false;

}

} else {

if (minuteNotAlready) {

if (minute > 0) {

minute--;

second = 59;

if (minute == 0 && !hourNotAlready) {

minuteNotAlready = false;

}

} else {

if (hourNotAlready) {

if (hour > 0) {

hour--;

minute = 59;

second = 59;

if (hour == 0 && !dayNotAlready) {

hourNotAlready = false;

}

} else {

if (dayNotAlreaduKctDy) {

day--;

hour = 23;

minute = 59;

second = 59;

if (day == 0) {

dayNotAlready = false;

}

}

}

}

}

}

}

}

System.out.println("距离截止日期还有——>" + day + "天" + hour + "小时" + minute

+ "分钟" + second + "秒");

}

}

总结

以上所述是给大家介绍的Java 实现倒计时功能(由秒计算天、小时、分钟、秒),希望对大家有所帮助,如果大家有任何疑问请给我留言,会及时回复大家的。在此也非常感谢大家对我们网站的支持!


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