Write a program in Java to demonstrate use of synchronization of threads when multiple threads are trying to update common variable.

AIM: Write a program in Java to demonstrate the use of synchronization of threads when multiple threads are trying to update common variables.

CODE:

class Test{

            void call(String msg){

                        System.out.print("\n["+msg);

                        try{

                                    Thread.sleep(100);

                        }

                        catch(InterruptedException e){

                                    System.out.println(e);

                        }

                        System.out.println("]");

            }

}

class demoThread extends Thread{

            Test c;

            String msg;

            demoThread(Test c, String msg){

                        this.c=c;

                        this.msg=msg;

            }

            public void run(){

                        synchronized(c){

                                    c.call(msg);

                        }

            }

}

 

class p32{

            public static void main(String args[]){

                        Test c = new Test();

                        demoThread dt1 = new demoThread(c,"Hiii");

                        System.out.println("\ndemoThread  1: "+dt1);

                       

                        demoThread dt2 = new demoThread(c,"Hello");

                        System.out.println("\ndemoThread  2: "+dt2);

                       

                        demoThread dt3 = new demoThread(c,"World!!");

                        System.out.println("\ndemoThread  3: "+dt3);

                       

                        dt1.start();

                        dt2.start();

                        dt3.start();

            }

}

OUTPUT: