Dive deep into how OOP works in Java. Learn to write cleaner, more reusable code using OOP principles.

Java for Programmers

Object Oriented Programming (OOP) is a programming paradigm popular for large and complex systems. In this. module, dive deep into how OOP works in Java. Learn to write cleaner, more reusable code using OOP principles.

Object Oriented Programming

## Method Overloading & Method Overriding

Method overloading and overriding are two completely different concepts.


Let's compare the differences below:

| **Method Overloading** | **Method Overriding** |
| --- | --- |
| Overloading happens at **compile time.** |  Overriding happens at **runtime** |
| Gives better performance because the binding is being done at compile time.  | Gives less performance because the binding is being done at run time. |
| **Private** and **final** methods can be overloaded.  | **Private** and **final** methods can not be overridden. |
| Return type of method does not matter in case of method overloading. | Return type of method must be the same in the case of overriding. |
| Arguments must be different in the case of overloading. | Arguments must be the same in the case of overriding.  |
| It is being done in the same class. | Base and derived classes are required here. |
| Mostly used to increase the readability of the code. | Mostly used to provide the implementation of the method that is already provided by its base class. |

# Method Overloading & Method Overriding

Method overloading and overriding are two completely different concepts.


In this lesson, you will get familiar with the differences between method overloading and method overriding.

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Abstract Classes and Interfaces

Aggregation and Composition

Difference Between the Overloading and Overriding of Methods

Method Overloading & Method Overriding