SynchronizedDemo1.java

class Display{

	public synchronized void displayN(){

		for (int i=1; i<=10; i++) {
			System.out.print(i);
			try{
				Thread.sleep(2000);
			}
			catch (InterruptedException e) {}
		}
	}

	public synchronized void displayC(){
		for (int i=65;i<=75 ;i++ ) {
			System.out.print((char)i);
			try{
				Thread.sleep(2000);
			}
			catch (InterruptedException e) {}
		}
	}
}
class MyThread1 extends Thread{

	Display d;
	MyThread1(Display d){
		this.d=d;
	}
	public void run(){
		d.displayN();
	}
}
class MyThread2 extends Thread{

	Display d;
	MyThread2(Display d){
		this.d=d;
	}
	public void run(){
		d.displayC();
	}
}

class SynchronizedDemo1{
	public static void main(String[] args) {
		Display d=new Display();
		MyThread1 t1=new MyThread1(d);
		MyThread2 t2=new MyThread2(d);
		t1.start();
		t2.start();
	}
}