Java Arithmetic Operator calculate cylinder volume

Question

We would like to write a program that reads in the radius and length of a cylinder.

Compute the area and volume using the following formulas: 

area = radius * radius * p 
volume = area * length 

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter the radius and length of a cylinder: ");
    double radius = input.nextDouble();
    double length = input.nextDouble();

    //your code here

    System.out.println("The area is " + area);
    System.out.println("The volume is " + volume);
  }//from w  ww .  j  a va 2  s  .c  o m

  private static double areaOfCylinder(double radius) {
    return radius * radius * Math.PI;
  }

  private static double volumeOfCylinder(double area, double length) {
    return area * length;
  }
}



import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter the radius and length of a cylinder: ");
    double radius = input.nextDouble();
    double length = input.nextDouble();

    double area = areaOfCylinder(radius);
    double volume = volumeOfCylinder(area, length);

    System.out.println("The area is " + area);
    System.out.println("The volume is " + volume);
  }

  private static double areaOfCylinder(double radius) {
    return radius * radius * Math.PI;
  }

  private static double volumeOfCylinder(double area, double length) {
    return area * length;
  }
}



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