public class P3 extends Thread{

        void waitForSignal() throws InterruptedException {
         Object obj = new Object();
            synchronized (Thread.currentThread()) {
         obj.wait();
        obj.notify();
             }
             }
        public static void main(String[] args) throws InterruptedException {
            P3 t=new P3();
            t.waitForSignal();


        }

    }

Explain the flow of output..

output:

Exception in thread "main" java.lang.IllegalMonitorStateException at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:485) at P3.waitForSignal(P3.java:7) at P3.main(P3.java:13)