Question

In an interview I was asked the below question.

Let say there is class A with a method drawShape() and there is another class B with a method drawSquare().

Now there is a third class C that extends both A and B.

Now finally in my class C I want both these methods.

How do I get both these methods at same time?

Answer 1

Do not you extends because Java does not suppert , instead you can use interface:

interface IA{
   void drawshape();
}

inerface IB{
   void drawsquare();
}

class A implements IA{
    ...
}

class B implements IB{
    ...
}

class C implements IA,IB{
   private A a;
   private B b;

   void drawshape(){
     a.drawshape()
   } 

   void drawsquare(){
     b. drawsquare()
   }
}