60 lines
1.3 KiB
Java
60 lines
1.3 KiB
Java
//: concurrency/Joining.java
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// ©2015 MindView LLC: see Copyright.txt
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// Understanding join().
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import static net.mindview.util.Print.*;
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class Sleeper extends Thread {
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private int duration;
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public Sleeper(String name, int sleepTime) {
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super(name);
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duration = sleepTime;
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start();
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}
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@Override
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public void run() {
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try {
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sleep(duration);
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} catch(InterruptedException e) {
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print(getName() + " was interrupted. " +
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"isInterrupted(): " + isInterrupted());
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return;
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}
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print(getName() + " has awakened");
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}
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}
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class Joiner extends Thread {
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private Sleeper sleeper;
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public Joiner(String name, Sleeper sleeper) {
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super(name);
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this.sleeper = sleeper;
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start();
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}
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@Override
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public void run() {
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try {
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sleeper.join();
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} catch(InterruptedException e) {
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print("Interrupted");
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}
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print(getName() + " join completed");
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}
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}
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public class Joining {
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public static void main(String[] args) {
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Sleeper
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sleepy = new Sleeper("Sleepy", 1500),
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grumpy = new Sleeper("Grumpy", 1500);
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Joiner
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dopey = new Joiner("Dopey", sleepy),
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doc = new Joiner("Doc", grumpy);
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grumpy.interrupt();
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}
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} /* Output:
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Grumpy was interrupted. isInterrupted(): false
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Doc join completed
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Sleepy has awakened
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Dopey join completed
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*///:~
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