Question

Wilbur Wright College CIS 142 C++ Programming Language Prof. Gustavo Alatta Lab #4 Points: 100 1.1. Create an application that calculates the grades of a group of students. The program must follow these specifications: - You need to declare 2 arrays: 1 single String array to contain the name of the students and the second a double two-dimensional to hold the grades of the students. - The program must allow the user to enter 5 students with 5 grades. - The program must print names and grades. - The program must use 2 decimal formal in the output - The program must calculate the average grade per student and print it at the end of each row Desirable output: Gustavo Alatta Bierbauer .50 100. 80. .25 . 8.15 80.00 70.00 75.5е в.00 64.00 362.25 1e0.00 100. 100.ee 95.00 356.15 .00 70.08 76. 90. 5.0 429.35 BUILD SUCCESSFUL (total tine: seconds Extra Credit(25 points): 1.2. Add a heading line before you print both arrays. This heading is only a decoration user-friendly heading line. Don't forget to use t to tabulate Desirable output: Gradel Grade2 Grade3 Grade4 Grades Average .50 2.00 . .25 9.88.15 80.00 70.00 75.30 อ0.00 6.00 161.25 1e0.00 189.00 9.5 96. 98258.15 1e0.00 10.00 1.0 95. 95. 356.-15 8.00 70.0 76. 9 5e. 429.35 Jack Hemphi1 UTLD SCCESSFUL (total tine: seconds

create an application that calculates the grades of students

Answer 1

Solution:

Test.java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Test{

    //Driver function
    public static void main(String[] args) throws IOException {
        String[] studentNames = new String [5];
        Double[][] studentGrades = new Double[5][5];
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Enter all 5 student details");
        for(int i = 0; i< 5; i++){
            System.out.println("\nEnter Student "+(i+1)+" Details : ");
            System.out.print("Name : ");
            studentNames[i] = br.readLine();
            for(int j = 0; j < 5; j++){
                System.out.print("Grade("+(j+1)+") : ");
                studentGrades[i][j] = Double.parseDouble(br.readLine());
            }
        }

        //Print the heading of output
        System.out.println("\n\nName\t\t\tGrade1\t\tGrade2\t\tGrade3\t\tGrade4\t\tGrade5\t\tAverage");
        
        //Print the desirable output
        for(int i = 0; i < 5; i++){
            double avg = (studentGrades[i][0] + studentGrades[i][1] + studentGrades[i][2] + studentGrades[i][3] + studentGrades[i][4])/5;
            System.out.printf ("%-15s\t%3.2f\t\t%3.2f\t\t%3.2f\t\t%3.2f\t\t%3.2f\t\t%3.2f%n", studentNames[i], studentGrades[i][0],
                    studentGrades[i][1], studentGrades[i][2], studentGrades[i][3], studentGrades[i][4], avg);
        }
    }
}

Output:

Run: Test c: Program Files\Java\jdk1.8.0_201\bin\java.exe".. Enter all 5 student details Enter Student 1 Details: Name : Gustavo Alatta Grade (1) 90.50 Grade (2)100.00 Grade (3): 80.00 Grade (4) : 80.25 Grade (5) : 90.00 Enter Student 2 Details: Name : Paul Bierbauer Grade (1): 80.00 Grade (2) : 70.00 Grade (3) : 75.50 Grade (4) : 80.00 Grade (5): 60.00 Enter Student 3 Details: Name Nick Thomas Grade (1) 100.00 Grade (2 100.00 Grade (3): 90.50 Grade (4) : 96.00 Grade (5) 98.00 Enter Student 4 Details: Name: Jane Durbin Grade (1) 100.00 Grade (2 100.00 Grade (3 100.00 Grade (4) 95.00 Grade (5) 95.00 Enter Student 5 Details: Name : Jack Hemphill Grade (1): 80.00 Grade (2) : 70.00 Grade (3): 76.00 Grade (4) 90.00 Grade (5): 50.00 Grade2 100.00 70.00 100.00 100.00 70.00 Grade3 80.00 75.50 90.50 100.00 76.00 Grade5 90.00 60.00 98.00 95.00 50.00 Gradel ame Gustavo Alatta 90.50 Paul Bierbauer 80.00 Nick Thomas Jane Durbin Jack Hemphill 80.00 Grade4 80.25 80.00 96.00 95.00 90.00 Average 88.15 73.10 96.90 98.00 73.20 100.00 100.00 Process finished with exit code 0

NOTE:

• In given question image, Average values were wrong, Please find the correct values of average in above output image.