Method Overloading

import java.util.Scanner;

class Shape {

    // Method to calculate the area of a circle (using radius)
    public double calculateArea(double radius) {
		return Math.PI * radius * radius;
	}

    // Method to calculate the area of a rectangle (using length and width)
   public double calculateArea(double length, double width) {
	   return length * width;
   }

    // Method to calculate the area of a square (using side length)
    public double calculateArea(int side) {
		return side * side;
	}
}

public class MethodOverloadingExample {
    public static void main(String[] args) {
        
        Shape shape = new Shape();
        Scanner scanner = new Scanner(System.in);
        System.out.print("radius of the circle: ");
        double radius = scanner.nextDouble();
        double circleArea = shape.calculateArea(radius);
        System.out.printf("Area of the circle: %.2f\n", circleArea);
        System.out.print("length of the rectangle: ");
        double length = scanner.nextDouble();
        System.out.print("width of the rectangle: ");
        double width = scanner.nextDouble();
        double rectangleArea = shape.calculateArea(length, width);
        System.out.printf("Area of the rectangle: %.2f\n", rectangleArea); 
        System.out.print("side length of the square: ");
        int side = scanner.nextInt();
        double squareArea = shape.calculateArea(side);
        System.out.printf("Area of the square: %.2f\n", squareArea); 
        scanner.close();
    }
}