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package chapter18;

/* J18_18.java */

/* Using Synchronized Method */

class Global // Global Class

{

synchronized void CallMe(String Msg) // Synchronized Method

{

System.out.print("[" +Msg);

try{

Thread.sleep(1000);

}

catch(Exception E)

{

System.out.print("Exception Caught.");

}

System.out.println("]");

}

}

class Caller implements Runnable // Caller Thread

{

String Msg;

Global Target;

Thread Th;

public Caller(Global Gb, String S)

{

Target = Gb;

Msg = S;

Th = new Thread(this);

Th.start();

}

public void run()

{

Target.CallMe(Msg);

}

}

public class J18_13 // Main Thread

{

public static void main(String args[])

{

Global Obj = new Global();

Caller Obj1 = new Caller(Obj, "Hello");

Caller Obj2 = new Caller(Obj, "Java");

Caller Obj3 = new Caller(Obj, "Programmer");

try{

Obj1.Th.join();

Obj2.Th.join();

Obj2.Th.join();

}

catch(Exception E)

{

System.out.println("Exception Caught.");

}

}

}