Added 4th program

MyThreadd.java

@@ -0,0 +1,28 @@
+public class MyThreadd extends Thread{
+	String task;
+	MyThreadd(String task){
+		this.task = task;
+	}
+	public void run(){
+		for(int i = 1; i<=5; i++){
+			System.out.println(task+ ":" + i);
+			try{
+				Thread.sleep(333);
+			} catch (InterruptedException ie) {
+				System.out.println(ie.getMessage());
+			}
+	        }
+	} // end of run() method
+	public static void main(String args[]){
+		MyThreadd th1 = new MyThreadd("Cut ticket");
+		MyThreadd th2 = new MyThreadd("Show ticket");
+		
+		Thread t1 = new Thread(th1);
+		Thread t2 = new Thread(th2);
+		t1.start();
+		t2.start();
+	}
+}
+	
+
+				

src/Title.txt

@@ -1,3 +1,4 @@
-1. write a java code by extending thread class
+1. write a java code by extending thread class (2)
-2. write a java code by implementing runnable interface.
+2. write a java code by implementing runnable interface. (2)
-3. 
+3. write a java code for demonstrating thread priority
+4. write a java code for two threads performing two tasks at a time