Question

Write a program called printGPA. The program should contain at least 3 methods: main, gradeAverage, and letterGrade.

The user will type a line of input containing the student's name, then a number that represents the number of scores, followed by that many integer scores (user input is in bold below). The data type used for the input should be one of the primitive integer data types. Here are two example dialogues:

Enter a student record: Maria 5 72 91 84 89 78

Maria's grade is 82.8.

Maria's final letter grade is B.

Enter a student record: Jordan 4 86 71 62 90

Jordan's grade is 77.25. Jordan’s final letter grade is C.

The method gradeAverage accepts a Scanner for the console parameter and then calculates and returns the student's grade point average. The method letterGrade takes one parameter, the students grade point average and then computes and returns the students final letter grade. The students final letter grade is based on the following table:

Grade Point Average	Letter Grade
90–100	A
80–89	B
70–79	C
60–69	D
Below 60	F

gradeAverage and letterGrade should not contain any System.out.print statements. The output should be formatted so the average does not contain more than 2 decimal places.

If you would like to earn bonus points, throw out the lowest score when computing average. For example, Jordan’s final average would be:

Jordan's grade is 82.33 because the students average of (86 + 71 + 90) / 3 equals 82.33. Jordan’s lowest score was 62 and was thrown out.

Answer 1

Please find the answer below:::

PrintGPA.java

package classes10;

import java.util.Scanner;

public class PrintGPA {

   public static void main(String[] args) {

       Scanner sc = new Scanner(System.in);
       System.out.print("Enter a student record : ");
       String name = sc.next();
       double gradePoint=gradeAverage(sc);
       char grade = letterGrade(gradePoint);
      
       System.out.printf("%s's grade is %.2f\n",name,gradePoint);
       System.out.printf("%s's final letter grade is %c\n",name,grade);
      
   }

   private static char letterGrade(double gradePoint) {
       if(gradePoint>=90 && gradePoint<=100){
           return 'A';
       }else if(gradePoint>=80){
           return 'B';
       }else if(gradePoint>=70){
           return 'C';
       }else if(gradePoint>=60){
           return 'D';
       }else{
           return 'F';
       }
   }

   private static double gradeAverage(Scanner sc) {
       int record = sc.nextInt();
       int mark;
       double total = 0;
       int min = 99999;
       for(int i=0;i<record;i++){
           mark = sc.nextInt();
           if(mark<min){
               min = mark;
           }
           total+=mark;
       }
       //remove minimum
       total -=min;
       //return average
       return total/(record-1);
   }

}

output: