如何在java中制作倒数计时器 [英] how to make a countdown timer in java

问题描述

我是编程的初学者（学生）并被指派创建游戏。
我正在制作的游戏叫做boggle。
玩家必须在给定时间内在随机信件板中找到单词。
但是我在创建计时器时遇到了麻烦。
这是我的计时器应该做的：

I'm a beginner(Student) in programming and was assigned to create a game. The game I'm making is called boggle. In which the player have to find words in a random letter board within a given time. but I'm having trouble with creating the timer. This is what it my timer should do:

• 动态输入时间（设定时间）


• 从输入时间倒计时到0


• 当o =>跳出循环时

我需要知道的是如何使其倒计时。
我认为我不需要ActionListener，因为它在创建类的那一刻开始滴答作响。

All i need to know is how to make it countdown. I don't think i need a ActionListener because it starts ticking the moment the class is created.

任何帮助，建议，链接，正确方向的推动都将张开双臂接受。

Any help, advice, links, push in the right direction will be accepted with open arms.

推荐答案

import java.util.Scanner;
import java.util.Timer;
import java.util.TimerTask;

public class Stopwatch {
static int interval;
static Timer timer;

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.print("Input seconds => : ");
    String secs = sc.nextLine();
    int delay = 1000;
    int period = 1000;
    timer = new Timer();
    interval = Integer.parseInt(secs);
    System.out.println(secs);
    timer.scheduleAtFixedRate(new TimerTask() {

        public void run() {
            System.out.println(setInterval());

        }
    }, delay, period);
}

private static final int setInterval() {
    if (interval == 1)
        timer.cancel();
    return --interval;
}
}

试试这个。

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