Difference between method overloading and overriding in Java

Carvia Tech | August 02, 2019 | 1 min read | 359 views


For more concrete information on method overloading and overriding, you can refer to these two articles.

Difference between method overloading and overriding
Method overloading Method overriding

A class have two or more methods in with the same name and different argument list.

In method overriding superclass and subclass have same method signature.

In overloading return type could vary in both methods.

In overriding return types should be same class or subclass (co-variant return type).

JVM calls the respective method based on the parameters passed to it, at the time of method call. It is also known as static polymorphism.

JVM calls the respective method based on the object used to call the method. It is also known as dynamic polymorphism.

Overloaded methods can declare new or broader checked exceptions.

You shall only throw same or narrowed checked exception (same or sub-class) or none at all.


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