Java wait, sleep, yield and notify

Learn about wait, sleep and yield in java:

Java wait and notify Example:

• Wait and notify both are the methods of Object class.
• Wait makes the object to wait for the given time or till it's notified.
• Once wait is invoked, object lock is being released and other thread can work on object.
• Both methods are called in the synchronized context.

Code Example:

public class WaitForNotification{
  public static void main(String []args) throws InterruptedException{
     Passenger psg = new Passenger();
     psg.start();
     // In synchronized block call wait method on newly created Passenger object
     Synchronized(psg){
       System.out.println(" Passenger is waiting for the notification.");
       psg.wait();
       System.out.println(" Passenger got notified.");
     }
   }
 }

class Passenger extends Thread{
  public void run(){
    Syncronized(this){
       System.out.println(" Wait...........");
       // Here add code befor bus gets notified
       System.out.println("Passenger is given notification call");
       notify()
    }
  }
}