6 and 7th

MovieBook.java

@@ -0,0 +1,24 @@
+// 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); 
+
+    }
+  }
+}