Chapter 3.9, Problem 3.24CP

Complete the following program skeleton by writing a switch statement that displays “one” if the user has entered 1, “two” if the user has entered 2, and “three” if the user has entered 3. If a number other than 1, 2, or 3 is entered, the program should display an error message.

 import java.util.Scanner;

 public class Checkpoint

 {

  public static void main(String[] args)

  {

   int userNum;

   Scanner keyboard = new Scanner(System.in);

   System.out.print(“Enter one of the numbers ” +

             “1, 2, or 3: ”);

   userNum = keyboard.nextInt();

   //

   // Write the switch statement here.

   //

  }

 }