// 7: write a java program for interthread communication using wait(), notify(), notifyAll()
class TotalEarnings extends Thread{
  int total = 0;
  public void run(){
    synchronized(this){
      for(int i=0;i<=10;i++){
        total = total + 100;
      }
      this.notify();
    }
  }
}

public class MovieBook{
  public static void main(String[] args) throws InterruptedException{
    TotalEarnings te = new TotalEarnings();
    te.start();
    synchronized(te){
      te.wait();
      System.out.println("total earnings: " + te.total); 

    }
  }
}