//: c13:SleepingThread.java // Calling sleep() to wait for awhile. // From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002 // www.BruceEckel.com. See copyright notice in CopyRight.txt. import com.bruceeckel.simpletest.*; public class SleepingThread extends Thread { private static Test monitor = new Test(); private int countDown = 5; private static int threadCount = 0; public SleepingThread() { super("" + ++threadCount); start(); } public String toString() { return "#" + getName() + ": " + countDown; } public void run() { while(true) { System.out.println(this); if(--countDown == 0) return; try { sleep(100); } catch (InterruptedException e) { throw new RuntimeException(e); } } } public static void main(String[] args) throws InterruptedException { for(int i = 0; i < 5; i++) new SleepingThread().join(); monitor.expect(new String[] { "#1: 5", "#1: 4", "#1: 3", "#1: 2", "#1: 1", "#2: 5", "#2: 4", "#2: 3", "#2: 2", "#2: 1", "#3: 5", "#3: 4", "#3: 3", "#3: 2", "#3: 1", "#4: 5", "#4: 4", "#4: 3", "#4: 2", "#4: 1", "#5: 5", "#5: 4", "#5: 3", "#5: 2", "#5: 1" }); } } ///:~