Main.java Source code

Introduction

Here is the source code for Main.java

Source

class Main {
    public static void main(String[] args) throws Exception {
        ThreadGroup tg = Thread.currentThread().getThreadGroup();

        MyThread mt1 = new MyThread(tg, "first");
        MyThread mt2 = new MyThread(tg, "second");

        mt1.start();
        mt2.start();

        ThreadGroup parent = tg.getParent();
        Thread[] list = new Thread[parent.activeCount()];
        int count = parent.enumerate(list, true);
        String[] thdinfo = new String[count];
        for (int i = 0; i < count; i++)
            thdinfo[i] = list[i].toString();

        mt1.join();
        mt2.join();

        for (int i = 0; i < count; i++)
            System.out.println(thdinfo[i]);
    }
}

class MyThread extends Thread {
    MyThread(ThreadGroup tg, String name) {
        super(tg, name);
    }

    public void run() {
        for (char c = 'A'; c <= 'Z'; c++)
            System.out.println(c);

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
        }
    }
}