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What is Polymorphism in Java? Polymorphism in Java is the task that performs a single action in different ways. So, languages that do not support polymorphism are not ‘Object-Oriented Languages’, but ‘Object-Based Languages’. Ada, for instance, is one such language. Since Java supports polymorphism, it is an Object-Oriented Language. Polymorphism occurs when there is inheritance, i.e., many classes are related. Inheritance is a powerful feature in Java. Java Inheritance lets one class acquire the properties and attributes of another class. Polymorphism in Java allows us to use these inherited properties to perform different tasks. Thus, allowing us to achieve the same action in many different ways.
What is Polymorphism? The derivation of the word Polymorphism is from two different Greek words- poly and morphs. “Poly” means numerous, and “Morphs” means forms. So, polymorphism means innumerable forms. Polymorphism, therefore, is one of the most significant features of Object-Oriented Programming.
Must Learn Core Java Topics
Real-Life Examples of Polymorphism
An individual can have different relationships with different people. A woman can be a mother, a daughter, a sister, and a friend, all at the same time, i.e. she performs other behaviors in different situations. The human body has different organs. Every organ has a different function to perform; the heart is responsible for blood flow, the lungs for breathing, the brain for cognitive activity, and the kidneys for excretion. So we have a standard method function that performs differently depending upon the organ of the body.
Polymorphism in Java Example
A superclass named “Shapes” has a method called “area()”. Subclasses of “Shapes” can be “Triangle”, “circle”, “Rectangle”, etc. Each subclass has its way of calculating area. Using Inheritance and Polymorphism means, the subclasses can use the “area()” method to find the area’s formula for that shape.
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