Java

Recurring Tasks In Java Applications

All manner of Java applications commonly need to schedule tasks for repeated execution. Enterprise applications need to schedule daily logging or overnight batch processes. A J2SE or J2ME calendar application needs to schedule alarms for a user's appointments. However, the standard scheduling classes, Timer and TimerTask, are not flexible enough to support the range of scheduling tasks typically required.

Example Program.

package org.tiling.scheduling.examples;

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

public class EggTimer {
private final Timer timer = new Timer();
private final int minutes;

public EggTimer(int minutes) {
    this.minutes = minutes;
}

public void start() {
    timer.schedule(new TimerTask() {
        public void run() {
            playSound();
            timer.cancel();
        }
        private void playSound() {
            System.out.println("Your egg is ready!");
            // Start a new thread to play a sound...
        }
    }, minutes * 60 * 1000);
}

public static void main(String[] args) {
    EggTimer eggTimer = new EggTimer(2);
    eggTimer.start();
}

}
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