Question

Java:

Write a class that had two overloaded static methods for calculating the areas of the following geometric shapes:

circles

rectangles

Here are the formulas for calculating the area of the shapes:

Area of a circle: Area = πr^2

where π is Math.PI and r is the circle's radius

Area of a rectangle: Area = Width * Length

Because the two methods are to be overloaded, they should each have the same name, but different parameter lists. Demonstrate the class in a complete program.

Example run:

run:

The area of a circle with a radius of 20.0 is 1256.64

The area of a rectangle with the length of 10 and width of 20 is 200.00

Answer 1

public class Areas {

    public static double area(double radius) {
        return Math.PI * radius * radius;
    }

    public static double area(double width, double length) {
        return width * length;
    }

    public static void main(String[] args) {
        System.out.println("The area of a circle with a radius of 20.0 is " + area(20));
        System.out.println("The area of a rectangle with the length of 10 and width of 20 is " + area(10, 20));
    }
}