public class Demo2 implements Test1, Test2
{ 
    // public void show()
    // {
    //     System.out.println("Demo: Implemented method.");
    // }
 
    public static void main(String[] args) 
    { 
        Test1 a = new Demo2();
        Test2 b = new Demo2();

        a.show();
        b.show();
    } 
}