dsafsafsdfpackage run;

public class ThisSuperTestClass {

    class A {

        public void doItA() {
            System.out.println("class A : method doItA()");
        }

        public void doItB() {
            System.out.println("class A : method doItB()");
        }
    }

    class B extends A {

        @Override
        public void doItA() {
            System.out.println("class B : method doItA()");
        }

        @Override
        public void doItB() {
            super.doItB();
            System.out.println("class B : method doItB()");
        }
    }

    class C extends B {

        @Override
        public void doItA() {
            System.out.println("class C : method doItA()");
        }

        @Override
        public void doItB() {
            super.doItB();
            System.out.println("class C : method doItB()");
        }
    }

    public void Test() {
        A a = new A();
        B b = new B();
        C c = new C();

        a.doItA();
        b.doItA();
        c.doItA();

        newLine();

        a.doItB();
        newLine();
        b.doItB();
        newLine();
        c.doItB();
    }

    public static void main(String[] args) {
        System.out.println("\nThis & Super Test Class\n");

        ThisSuperTestClass t = new ThisSuperTestClass();
        
        t.Test();
        
        System.out.println("\nThat's it!\n");
    }

    public static void newLine() {
        System.out.println();
    }
}
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