Chapter 3, Problem 11E

Program:

//Import necessary header files

import java.util.*;

//Define the class

public class LetterGrade

{

    //Define the "main()" function

    public static void main(String[] args)

    {

        //Variable declaration

        char letter;

        //Variable initialization

        double gradeValue = 0.0;

        //Create object for "Scanner()"

        Scanner sc = new Scanner(System.in);

        //Print the statement

        System.out.print("Enter the grade: ");

        //Get the input from the user

        letter = sc.next().charAt(0);

        //Switch statement

        switch (letter)

        {

        //Case statement

        case 'A':

            //Assign the value

            gradeValue = 4.0;

            //Break statement

            break;

        //Case statement

        case 'B':

            //Assign the value

            gradeValue = 3.0;

            //Break statement

            break;

        //Case statement

        case 'C':

            //Assign the value

            gradeValue = 2.0;

            //Break statement

            break;

        //Case statement

        case 'D':

            //Assign the value

            gradeValue = 1...