- What Is Method Overloading And Overriding In Java
- Difference Between Method Overloading And Method Overriding
- Overloading And Overriding In Java Quora
Key Difference – Overloading vs Overriding in JavaObject-Oriented Programming is a major paradigm in software development. It is a methodology to design a program using A class is a blueprint. It describes what should contain in the object. It defines the properties or attributes and the methods that the object should consist of. Therefore, an object is an instance of a class. These objects communicate with other objects.
One major concept of OOP is Polymorphism. It is the ability for an object to behave in multiple ways. Polymorphism is categorized into two sections which are overloading and overriding. This article discusses the difference between these two in. The key difference between overloading and overriding in Java is that the Overloading is the ability to create multiple methods of the same name with different implementations and Overriding is to provide an implementation for a subclass method that already exists in the superclass. What is Overloading in Java?Overloading is the ability to create multiple methods of the same name with different implementations.
What Is Method Overloading And Overriding In Java
Refer the below Java code. Figure 01: Java program that explains Overloading with different number of argumentsAccording to the above program, class A contains two methods with the same name.
The first sum method has two parameters. The second sum method has three parameters. When creating an object of type A and calling sum(2,3), it will call sum method with two parameters that are sum(int a, int b) and returns 5. When creating an object of type A and calling sum(2,3,4), it will call the other sum method with three parameters which is the sum(int a, int b, int c) and returns 9.The method name is the same but number of parameters are different. It can be observed that the same object is behaving differently.
This concept is known as overloading. It is also referred as Static Binding or Compiles Time Polymorphism.There can also be overloaded with different data types. Refer the below Java code. Figure 02: Java program which explains Overloading with different number of argumentsAccording to the above program, class A consist of two methods with the same name. The sum(int a, int b) method receives two integer values. The sum(double a double b) receives two double values.
When creating the object of type A and calling sum(2,3), it will call sum(int a, int b) and return the value 5. When calling sum(3.4, 5.6), it will call sum(double a double b) and return the value 9.0.
Difference Between Method Overloading And Method Overriding
In this example, the methods have the same name, but a different type of variables. This is also overloading. Figure 03: Java program for overridingAccording to the above program, Class A is having a method display. Class B is extending from class A, so the properties and methods of class A are accessible by class B. Class B has method display with a specific implementation. When creating an object of type, A and calling the display method, it will give the output B. Even though class A has a display method, it is overridden be class B display method.
Overloading And Overriding In Java Quora
Subclass is implementing a method already exist in the superclass.This concept is a type of polymorphism and known as overriding. It is also called as Late Binding, Dynamic Binding, Runtime Polymorphism. What are the Similarities Between Overloading and Overriding in Java?. Both are types of Polymorphism. In overloading and overriding, methods have the same name.What is the Difference Between Overloading and Overriding in Java?
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