Question

This assignment requires you to write a well documented Java program to calculate the total and average of three scores, the letter grade, and output the results. Your program must do the following:
Prompt and read the users first and last name
Prompt and read three integer scores
Calculate the total and average
Determine a letter grade based on the following grading scale - 90-100 A; 80-89.99 B; 70-79.99 C; below 70 F
Use the printf method to output the full name, the three scores, the total, average, and the letter grade, properly formatted and on separate lines.
Within the program include a pledge that this program is solely your work and the IDE used to create/test/execute the program. Please submit the source code/.java file to Blackboard. Attached is a quick reference for the printf method.

Answer 1

Answer:

The solution is given in the explanation section

Don't forget to add the pledge before submitting it. Also, remember to state the IDE which you are familiar with, I have used the intellij IDEA

Follow through the comments for a detailed explanation of each step

Explanation:

/*This is a Java program to calculate the total and average of three scores, the letter grade, and output the results*/

// Importing the Scanner class to receive user input

import java.util.Scanner;

class Main {

 public static void main(String[] args) {

   //Make an object of the scaner class

   Scanner in = new Scanner(System.in);

   //Prompt and receive user first and last name;

   System.out.println("Please enter your first name");

   String First_name = in.next();

   System.out.println("Please enter your Last name");

   String Last_name = in.next();

   //Prompt and receive The three integer scores;

   System.out.println("Please enter score for course one");

   int courseOneScore = in.nextInt();

   System.out.println("Please enter score for course two");

   int courseTwoScore = in.nextInt();

   System.out.println("Please enter score for course three");

   int courseThreeScore = in.nextInt();

   //Calculating the total scores and average

   int totalScores = courseOneScore+courseTwoScore+courseThreeScore;

   double averageScore = totalScores/3;

   /*Use if..Else statements to Determine a letter grade based on the following grading scale - 90-100 A; 80-89.99 B; 70-79.99 C; below 70 F */

   char letterGrade;

   if(averageScore>=90){

     letterGrade = 'A';

   }

   else if(averageScore>=80 && averageScore<=89.99){

     letterGrade = 'B';

   }

     else if(averageScore>=70 && averageScore<=79.99){

     letterGrade = 'C';

   }

   else{

     letterGrade ='F';

   }

   //Printing out the required messages

   System.out.printf("Name:  %s %s\n", First_name, Last_name);

   System.out.printf("scores: %d %d %d:  \n", courseOneScore, courseTwoScore, courseThreeScore);

   System.out.printf("Total and Average Score is: %d %.2f:  \n", totalScores, averageScore);

   System.out.printf("Letter Grade: %C:  \n", letterGrade);

  // System.out.printf("Total: %-10.2f:  ", dblTotal);

 }

}