code

code

class Shared {

    synchronized void methodOne(Shared s) {
        Thread t = Thread.currentThread();
        System.out.println(t.getName() + "is executing methodOne...");
        System.out.println(t.getName() + "is calling methodTwo...");
        s.methodTwo(this);
        System.out.println(t.getName() + "is finished executing methodOne...");
    }

    synchronized void methodTwo(Shared s) {
        Thread t = Thread.currentThread();
        System.out.println(t.getName() + "is executing methodTwo...");
        System.out.println(t.getName() + "is calling methodOne...");
        s.methodOne(this);
        System.out.println(t.getName() + "is finished executing methodTwo...");
    }
}