Making a program run for 5 minutes

Question

So I wanted to try out something for a bit with the Timer and TimerTask classes.

I was able to get a line of code to execute after 30 seconds elapsed. What I\'ve been t

Answer 1

I don't know if this solution has problems with the garbage collector or not, but I throw it in here anyways. Maybe someone clears that out, and I learn something as well. Basically a timer sets a new timer if there is time left, and it should stop after 5 minutes.

Main.java:

public class Main {
    public static void main(String[] args) {
        MyTimer myTimer = new MyTimer(300000,30000);
        myTimer.startTimer();
    }
}

MyTimer.java:

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

public class MyTimer {
    private int totalRunningTime;
    private int currentTime = 0;
    private int intervalTime;

    private Timer timer = new Timer();

    public MyTimer(int totalRunningTime, int intervalTime) {
        this.totalRunningTime = totalRunningTime;
        this.intervalTime = intervalTime;
    }

    public void startTimer() {
        startTimer(intervalTime);
    }

    private void startTimer(int time) {
        timer.schedule(new TimerTask() {
            public void run() {

                if (currentTime <= totalRunningTime - intervalTime) {
                    printTimeSinceLast(intervalTime / 1000);
                    currentTime += intervalTime;
                    startTimer(intervalTime);
                } else if (currentTime < totalRunningTime) {
                    int newRestIntervalTime = totalRunningTime - currentTime;
                    printTimeSinceLast(newRestIntervalTime / 1000);
                    currentTime += newRestIntervalTime;
                    startTimer(newRestIntervalTime);
                }
            }
        }, time);
    }

    private void printTimeSinceLast(int timeSinceLast) {
        System.out.println(timeSinceLast + " seconds later.");
    }
}