2.2 (Compute the volume of a cylinder) Write a program that reads in the radius and length of a cylinder and computes the area and volume using the following formulas:

area = radius * radius * p
volume = area * length
Here is a sample run:

Solution:

import java.util.Scanner;

public class Exercise02_02 {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);

    // Enter radius of the cylinder
    System.out.print("Enter the radius and length of a cylinder: ");
    double radius = input.nextDouble();
    double length = input.nextDouble();

    double area = radius * radius * 3.14159;
    double volume = area * length;

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