Wait() / notify() synchronization

Question

I\'m trying to check how wait/notify works in java.

Code:

public class Tester {
    public static void main(String[] args) {
                


        

Answer 1

Answer to updated code :

From Thread.sleep() javadoc:

Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds, subject to the precision and accuracy of system timers and schedulers. The thread does not lose ownership of any monitors.

If you call Thread.sleep while inside a synchronized block, other threads won't be able to enter the synchronized block. You should never do time consuming tasks while in a synchronized block to avoid this.