9. What is difference between overloading and overriding?

Question

Accepted Answer

Overloading is having multiple methods with the same name but different parameters. Overriding is implementing a method in a subclass that already exists in the parent class.

Overloading is compile-time polymorphism while overriding is runtime polymorphism.
Overloading is used to provide different ways of calling the same method with different parameters.
Overriding is used to provide a specific implementation of a method in a subclass that is already defined in the parent class.
Overloading is achieved within the same class while overriding is achieved in different classes.
Example of overloading: public void sum(int a, int b) and public void sum(int a, int b, int c)
Example of overriding: public class Animal { public void move() { System.out.println('Animal is moving'); } } public class Dog extends Animal { public void move() { System.out.println('Dog is running'); } }

9. What is difference between overloading and overriding?

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