Chapter 4, Problem 1P

Creating the class “Main.java”:

• Import required packages.
• Define the class “Main”.
  • Define the “main ()” method.
    • Create an object for “Scanner” class.
    • Declare required variables.
    • Do till the user enters “no” using “while” condition.
      • Get a statement or question from the user and store it in a variable “input”.
      • Calculate the length of the sentence and store it in a variable “length”.
      • Get the last character and store it in a variable “lastCharacter”.
      • Switch to the last character.
        • Case “?”.
        • • Check if “length % 2” is equal to 0.
            • Print “Yes”.
          • Else,
            • Print “No”.
          • Break the case.
        • Case “!”
        • • Print “Wow”.
          • Break the case.
        • Default case.
        • • Print the entered sentence.
      • Ask whether the user wants to continue or not and store the response. Check if the response is “yes” and continue the process.

Program:

//Import required package

import java.util.*;

//Define the Main class

public class Main

{

    //Define the main method

    public static void main(String[] args)

    {

        //Create an object for the scanner class

        Scanner keyboard = new Scanner(System.in);

        //Declare required variables

        String input;

        int length;

        char lastCharacter;

        int response;

        //Do until the user enters no

        do

        {

            //Get a statement or a question

System.out.print("Enter a statement or question: ");

            input = keyboard.nextLine();

            //Get the length of the sentence

            length = input.length();

//Get the last character from that sentence

            lastCharacter = input.charAt(length -1);

            //Switch to the last character

            switch(lastCharacter)

            {

                //If the last character is '?'

                case '?':

//Check if the length % 2 is equal to 0

                if (length%2 == 0)

                    //Print yes

                    System...