Question

I need to make this into a Java Code:

Write a program that prompts the user for a double value representing a radius. You will use the radius to calculate:

• circleCircumference = 2πr
• circleArea = πr²
• sphereArea = 4πr²
• sphereVolume = 43πr³

You must use π as defined in the java.lang.Math class.

Your prompt to the user to enter the number of days must be:

Enter radius:

Your output must be of the format:

Circle Circumference = circleCircumference
Circle Area = circleArea
Sphere Area = sphereArea
Sphere Volume = sphereVolume

Please make sure to end each line of output with a newline.

Please note that your class should be named CircleSphere.

Answer 1

import java.util.Scanner;

public class CircleSphere {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter radius: ");
        double radius = in.nextDouble();
        double circleCircumference = 2 * Math.PI * radius;
        double circleArea = Math.PI * radius * radius;
        double sphereArea = 4 * Math.PI * radius * radius;
        double sphereVolume = (4.0 / 3) * Math.PI * radius * radius * radius;
        System.out.println("Circle Circumference = " + circleCircumference);
        System.out.println("Circle Area = " + circleArea);
        System.out.println("Sphere Area = " + sphereArea);
        System.out.println("Sphere Volume = " + sphereVolume);
    }
}