Question

所以，我一直试图弄清楚这个计时器是如何工作的，现在我终于让它编译没有错误，我似乎无法让它运行正常，我假设因为我'我没有给它适当的cmd ln args但我不知道提供什么args。代码如下：

import java.time.*;

public class Clock {
    private LocalTime startTime;
    private LocalTime stopTime;
    private Duration duration;
    private int hours, minutes, seconds;

    // no argument constructor that initializes the startTime to the current time
    public Clock() {
        startTime = LocalTime.now();
    }
    public Clock(LocalTime start, LocalTime stop) {
        startTime = start;
        stopTime = stop;
    }


    //public Clock(start, stop) {

    //}

    // resets the startTime to the given time
    public void start(int h, int m, int s) {
        hours = ((h >= 0 && h < 24) ? h : 0);
        minutes = ((m >= 0 && m < 60) ? m : 0);
        seconds = ((s >= 0 && s < 60) ? s : 0);
        startTime = LocalTime.of(hours, minutes, seconds);
    }

    //a stop() method that sets the endTime to the given time
    public void stop(int h, int m, int s) {
        hours = ((h >= 0 && h < 24) ? h : 0);
        minutes = ((m >= 0 && m < 60) ? m : 0);
        seconds = ((s >= 0 && s < 60) ? s : 0);
        stopTime = LocalTime.of(hours, minutes, seconds);
    }

    //a getElapsedTime() method that returns the elapsed time in seconds
    public Duration getElapsedTime() {
        System.out.println("Difference is " + Duration.between(stopTime, startTime).toNanos()/1_000_000_000.0 + " Seconds.");
        duration = Duration.between(stopTime, startTime);
        return duration;
    }
    public static void main(String[] args) {

       LocalTime argOne;
       LocalTime argTwo;
       argOne = LocalTime.parse(args[0]);
       argTwo = LocalTime.parse(args[1]);
       Clock clockOne = new Clock(argOne, argTwo);
       clockOne.getElapsedTime();
    }
}

Answer 1

成功编译后，命令行参数应为这种格式，（包括调用java类）所以我的看起来像：

java Clock 03:14:43 03:17:00 || java时钟03:14 03:17

预期输出：以秒为单位的经过时间：180

我的命令参数对于我的计时器会是什么

1 个答案: