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Java Program to Calculate Area Using Method Overloading

A Java program to calculate the area of different shapes using method overloading.

Problem Description

Write a Java program to calculate the area of a circle, rectangle, and triangle using method overloading.

Code

MethodOverloading.java
public class MethodOverloading {
    public static void main(String[] args) {
        MethodOverloading mo = new MethodOverloading();
        
        System.out.println("Area of Circle: " + mo.area(5));
        System.out.println("Area of Rectangle: " + mo.area(5, 10));
        System.out.println("Area of Triangle: " + mo.area(10, 20.5));
    }

    // Area of Circle
    public double area(double r) {
        return 3.14 * r * r;
    }

    // Area of Rectangle
    public int area(int l, int b) {
        return l * b;
    }

    // Area of Triangle
    public double area(double b, double h) {
        return 0.5 * b * h;
    }
}

Output

Area of Circle: 78.5
Area of Rectangle: 50
Area of Triangle: 102.5

Explanation

  1. Method Overloading: Multiple methods with the same name but different parameters (type or number).
  2. Compile-time Polymorphism: The compiler decides which method to call based on the arguments passed.

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