ExgrDemo.java Source code

Introduction

Here is the source code for ExgrDemo.java

Source

import java.util.concurrent.Exchanger;

class ExgrDemo {
    public static void main(String args[]) {
        Exchanger<String> exgr = new Exchanger<String>();

        new UseString(exgr);
        new MakeString(exgr);
    }
}

class MakeString implements Runnable {
    Exchanger<String> ex;

    String str;

    MakeString(Exchanger<String> c) {
        ex = c;
        str = new String();

        new Thread(this).start();
    }

    public void run() {
        char ch = 'A';
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 5; j++)
                str += (char) ch++;

            try {
                str = ex.exchange(str);
            } catch (InterruptedException exc) {
                System.out.println(exc);
            }
        }
    }
}

class UseString implements Runnable {
    Exchanger<String> ex;

    String str;

    UseString(Exchanger<String> c) {
        ex = c;
        new Thread(this).start();
    }

    public void run() {

        for (int i = 0; i < 3; i++) {
            try {
                str = ex.exchange(new String());
                System.out.println("Got: " + str);
            } catch (InterruptedException exc) {
                System.out.println(exc);
            }
        }
    }
}