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Difference between Overloading and Overriding

Difference between Overloading and Overriding

The terms “overloading” and “overriding” are often confused, but they are actually two different things. Overloading is the process of creating a new function that has the same name as an existing function, but with different parameters. Overriding is the process of replacing an existing function with a new function that has the same name and parameters. In this blog post, we will explore the difference between overloading and overriding, and provide some examples to help you better understand these concepts.

What is Overloading?

Overloading is a process that allows a system to handle more than its normal workload. Overloading can occur when a system is asked to perform more work than it is designed for or when it is asked to do work that is outside of its normal operating parameters. Overloading can have a number of consequences, including reduced performance, unexpected results, and even system failure.

In some cases, overloading can be intentional, as when a system is deliberately tasked with more work than it is designed for in order to test its limits. In other cases, overloading may be the result of an error or misconfiguration. Regardless of the cause, overloading should be avoided whenever possible to prevent negative consequences.

What is Overriding?

  • Overriding is the ability of a class to override a method defined in its superclass. When a method is overridden, the subclass provides its own implementation of the method, which is then used instead of thesuperclass’s implementation. Overriding is a powerful feature that allows subclasses to adapt their behavior to meet their specific needs.
  • However, it is important to use overriding carefully, as it can lead to unexpected results if not used properly. Overriding is often used to change the behavior of an inherited method, such as making it more specific to the subclass’s needs. It can also be used to improve performance by providing a more efficient implementation of an inherited method.
  • When overriding a method, it is important to ensure that the overriding method has the same signature as the inherited method. This includes the number and type of parameters, as well as the return type. Failure to do so will result in a compile-time error. Overriding is a powerful tool that can be used to customize the behavior of a class. However, it is important to use it wisely, as it can lead to unexpected results if not used properly.

Difference between Overloading and Overriding

Overloading and overriding are two important features in object-oriented programming. They are both used to create new methods that extend the functionality of existing classes. However, there are some key differences between the two. Overloading occurs when multiple methods share the same name but have different signatures.

This means that they take different numbers or types of arguments. Overriding, on the other hand, occurs when a child class redefines a method that it inherits from its parent class. In both cases, the new methods can be used to add additional behavior to an existing class. However, overloading is typically used to create new methods with similar functionality, while overriding is used to change the behavior of an existing method. As a result, both features are useful in different situations.


In Java, there are two ways to provide new functionality for an existing method: overloading and overriding. Overloading a method means providing multiple definitions of the same method, each with a unique parameter list. Overriding a method means replacing an inherited definition with your own. The main difference between overloading and overriding is that overloaded methods must have the same return type, while overridden methods can differ in return type.

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