Polymorphism

Which statement about method overriding is correct?

• Subclasses can override private methods from their superclass.

• Method overriding is determined at compile-time.

• Overridden methods in subclasses must have the same method signature (name, return type, and parameters) as in the superclass.

• Overriding methods in subclasses cannot have a different access modifier than the superclass method.

Which of the following statements regarding polymorphism and method overloading is correct?

• Polymorphism is achieved through method overloading.

• Method overloading is achieved through polymorphism.

• Polymorphism and method overloading are unrelated concepts.

• Method overloading can only be done in abstract classes.

Which statement about interfaces and polymorphism is true?

• Interface or abstract class, and various classes can implement or extend it, providing their own implementations of the methods.

• Interface methods can have implementation (code) in the interface itself.

• Polymorphism can only be achieved through class inheritance, not interface implementation.

• An interface can extend multiple other interfaces, but a class can only implement one interface.

Assuming that Circle, Rectangle, and Triangle are subclasses of Shape with appropriate draw() methods, what happens when you call shapes[1].draw();?

• It will result in a compilation error.

• It will call the draw() method of Shape.

• It will call the draw() method of Rectangle.

• It will call the draw() method of Circle.

What will be the output of the code?

• Drawing a shape

• Drawing a square

• Drawing a triangle

• Drawing a circle

In your own words, Explain Polymorphism.

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