![]() ![]() provide public get and set methods to access and update the value of a private variable. To achieve this, you must: declare class variables/attributes as private. Class 'HighSchoolStudent' is derived from class 'Student'. This could happen when classes implement the same interface or one class derives from another. Polymorphism is when one class represents another so that user won't notice. Polymorphism explores how to create and use two methods with the same name to execute two different functionalities like adding two functions with the same name but that accept different parameters. The meaning of Encapsulation, is to make sure that 'sensitive' data is hidden from users. In biology, polymorphism is a discontinuous genetic variation that results in many distinct forms or types of individuals occurring among members of a single. Class 'Student' is an abstraction of a real student. In this example, we are creating static methods so that we don't need to create instance for calling methods. Polymorphism, which literally means different forms, is one of the core concepts of OOP. Also, polymorphism does happen at run time. It allows you to call methods of a class without knowing the exact type of the class. It can only happen in classes that extend one another. In this example, we have created two methods, first add() method performs addition of two numbers and second add method performs addition of three numbers. Polymorphism is an effect of inheritance. In Java, Method Overloading is not possible by changing the return type of the method only. There are two ways to overload the method in java ![]() Method overloading increases the readability of the program. One can distinguish between the two usages through the use of context clues. You can remember this word by breaking it down. In essence, it is the ability of a single method to be applied to derived classes and achieve a proper output. The term bear could be a verb (to carry a burden) or it could be a noun (a large, hairy mammal). In computer science, polymorphism refers to the ability of a programming language to interpret objects in different ways based on their class or data type. So, we perform method overloading to figure out the program quickly. An Introduction to Polymorphism in Java The term homonym means a word the same as another in sound and spelling but with different meaning. Suppose you have to perform addition of the given numbers but there can be any number of arguments, if you write the method such as a(int,int) for two parameters, and b(int,int,int) for three parameters then it may be difficult for you as well as other programmers to understand the behavior of the method because its name differs. If we have to perform only one operation, having same name of the methods increases the readability of the program. If a class has multiple methods having same name but different in parameters, it is known as Method Overloading. Why method overloading is not possible by changing the return type. ![]()
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