Feb 19, 2025 · Write a Java program to create a base class Shape with a method called calculateArea (). Create three subclasses: Circle, Rectangle, and Triangle. Override the calculateArea () method in each subclass to calculate and return the shape's area. In the given exercise, here is a simple diagram illustrating polymorphism implementation:

Mar 31, 2022 · A better way could be: make Shape abstract, and have an abstract method protected double computeArea() ... and a (non-abstract) method printArea () ... that calls the abstract one.

Feb 19, 2025 · Learn Java method overriding by creating a Shape class with a getArea () method and a Rectangle subclass that calculates the rectangle’s area.

Apr 26, 2022 · In this program, we will see how to find the area of a square, rectangle, and circle using Method Overloading. Declare three different classes for rectangle, square, and circle. Declare two methods of the same name but with a different number of arguments or with different data types. Call these methods using objects.

Apr 29, 2014 · We have two classes, with the first one being a Rectangle: this.length = length; this.width = width; Next we have an extension class called Square, which extends Rectangle, so through super() we know that it uses the constructor of the Rectangle class. super(side, side); this.side = side; System.out.println("I am a square of side " + side);

Mar 3, 2021 · Explore this Java tutorial showcasing inheritance by calculating the area of various shapes. Geared towards beginners, it provides clear explanations and code examples to illustrate how inheritance is used to create a hierarchy of shape classes in Java.

Create a Java program to calculate and display the area of different shapes: Circle, Rectangle, and Triangle. Use inheritance and method overriding to achieve this.

Apr 11, 2025 · Java Inheritance is a fundamental concept in OOP (Object-Oriented Programming). It is the mechanism in Java by which one class is allowed to inherit the …

Write a program in java to define a class Shape which has data member „area‟ and a member function showArea (). Derive two classes Circle and Rectangle from Shape class. Add appropriate data members and member functions to calculate and display the area of Circle and Rectangle. 5.

Polymorphism in Java allows creating an entity that will perform different operations in different conditions. In this tutorial, we will learn about the Polymorphism in Java with examples.