synchroThread.java

class threadSynchro extends Thread 
{
	public void printThread(int n)
	{
		for (int i = 1; i <= 10; i++) 
		{
			System.out.println("Thread " + n
							+ " is working...");
			try 
			{
				Thread.sleep(600);
			}
			catch (Exception ex) 
			{
				System.out.println(ex.toString());
			}
		}
		System.out.println("--------------------------");

		try 
		{
			Thread.sleep(1000);
		}

		catch (Exception ex) 
		{
			System.out.println(ex.toString());
		}
	}
}
class Thread1 extends Thread 
{
	threadSynchro test;
	Thread1(threadSynchro p) 
	{ 
		test = p; 
	}
	public void run()
	{
		test.printThread(1);
	}
}
class Thread2 extends Thread 
{
	threadSynchro test;
	Thread2(threadSynchro p) 
	{ 
		test = p; 
	}
	public void run() 
	{ 
		test.printThread(2); 
	}
}
public class synchroThread 
{
	public static void main(String[] args)
	{
		threadSynchro p = new threadSynchro();
		Thread1 t1 = new Thread1(p);
		Thread2 t2 = new Thread2(p);
		t1.start();
		t2.start();
	}
}