Use of Thread Join - say current thread must wait for another thread to terminate its execution[something like Pause]

ThreadJoinDemo.java

/*
Output WITHOUT Join [although the mix sequence could vary but inconsistent]

Thread 1 arrived...
Thread 2 arrived...
Thread 1 working on 1...
Thread 2 working on 1...
Thread 1 working on 2...
Thread 2 working on 2...
Thread 2 working on 3...
Thread 2 working on 4...
Thread 2 working on 5...
Thread 2 finished.
Thread 1 working on 3...
Thread 1 working on 4...
Thread 1 working on 5...
Thread 1 finished.

*/

/*
Output WITH Join

Thread 1 arrived...
Thread 1 working on 1...
Thread 1 working on 2...
Thread 1 working on 3...
Thread 1 working on 4...
Thread 1 working on 5...
Thread 1 finished.
Thread 2 arrived...
Thread 2 working on 1...
Thread 2 working on 2...
Thread 2 working on 3...
Thread 2 working on 4...
Thread 2 working on 5...
Thread 2 finished.

*/
public class ThreadJoinDemo {

	static Thread t1, t2 = null;

	class MyRunnable implements Runnable {
		@Override
		public void run() {
			System.out.println(Thread.currentThread().getName() + " arrived...");
			for (int i = 1; i < 6; i++) {
				System.out.println(Thread.currentThread().getName() + " working on " + i + "...");
			}
			System.out.println(Thread.currentThread().getName() + " finished.");

		}
	}

	public static void main(String[] args) {
		new ThreadJoinDemo().execute();
	}

	void execute() {
		t1 = new Thread(new MyRunnable(), "Thread 1");
		t1.start();
        try {
			t1.join(); // causes the current thread to pause execution until t1's thread terminates
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		t2 = new Thread(new MyRunnable(), "Thread 2");
		t2.start();
	}
}