Question

Programmed in Java Pls - The other answer to this question is incorrect.:

Your program should follow the below requirements:

1. You will only need one class for this project called StudentReport in the package ilstu.edu
2. In your class you will have the following instance variables:
   1. grades: a double 2d array that will hold the grades for all the students.
   2. Students: a 1d String array that will hold the names of all the students.
3. In your class you will have the following methods:
   1. main:
      1. It will control the flow of your program.
      2. It will prompt the user to select one of the following options:
         1. Print a list of all students

This will print out all the student names to the console.

1. 2. Generate a report card for a specific student
      1. If selected it will ask the user to enter the name of the student
      2. It will then call the writeFile method to generate the report card
   3. Display statistics.
      1. It will print out the average of the class, the highest total and the lowest total.
2. readFile:
   1. it will read the .csv file and store the values in the arrays we have.
3. writeFile:
   1. it will generate a report card for the selected student and save it as a .txt file.

4. You can add any methods and variables you find suitable.
5. Your report file could have any formatting, but it should include the following:
   1. The student’s name
   2. Their grade in every exam, assignment with the appropriate label.

For example: Exam one: 50.

3. Their Total.
4. Their letter grade. (90 and above A, 80-89 B,70-79 C, 60-69 D, below 69 F)

Please comment and I will reply to it with a link to grades.csv

Thank you!

Answer 1

// studentExams.csv

Hannah Abbott   9   10   10   10   9   14   13   15
Amelia Bones   7   7   10   9   10   15   15   18
Michael Corner   8   9   10   8   10   14   15   19
Vincent Crabbe   6   5   8   5   10   15   15   20
Marcus Flint   10   6   10   8   10   12   15   20
Gregory Goyle   9   3   10   5   5   14   12   15
Rolanda Hooch   8   10   10   10   10   13   15   17
Angelina Johnson   9   1   5   8   10   10   11   16
Viktor Krum   10   0   6   5   10   14   15   14
Neville Longbottom   8   10   10   5   10   15   14   18
Theodore Nott   4   10   8   9   10   10   15   14
Irma Pince   10   8   10   8   10   15   14   15
Stan Shunpike   3   9   10   9   10   15   13   12
Alicia Spinnet   9   5   6   5   9   11   12   14
Emmeline Vance   5   8   2   3   9   12   11   15
Myrtle Warren   10   5   8   4   9   13   10   16
Oliver Wood   8   7   9   10   9   15   10   18
Rose Weasley   10   9   10   9   10   14   15   19
Blaise Zabini   4   0   2   3   5   9   8   10

=========================

// StudentExams.java

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

import sun.print.resources.serviceui;

public class StudentExams {

   public static void main(String[] args) throws IOException {
       int cnt = 0;
       Scanner sc = new Scanner(new File("studentExams.csv"));

       while (sc.hasNext()) {
           sc.nextLine();
           cnt++;
       }
       sc.close();

       String names[] = new String[cnt];
       int Students[][] = new int[cnt][8];

       sc = new Scanner(new File("studentExams.csv"));
       for (int i = 0; i < cnt; i++) {
           names[i] = sc.next() + " " + sc.next();
           for (int j = 0; j < 8; j++) {
               Students[i][j] = sc.nextInt();
           }
       }
       sc.close();

       /*
       * Creating an Scanner class object which is used to get the inputs
       * entered by the user
       */
       sc= new Scanner(System.in);
      
       while (true) {
           System.out.println("\n1.Print a list of all students");
           System.out.println("2.Generate a report card for a specific student");
           System.out.print("Enter Choice :");
           int choice = sc.nextInt();

           switch (choice) {
           case 1: {
              
                   displayNames(names);
              
           }
               break;

           case 2: {
               sc.nextLine();
               System.out.print("Enter Student name :");
               String name=sc.nextLine();
               int indx=searchName(name,names);
               if(indx==-1)
               {
                   System.out.println(name+" not found.");
               }
               else
               {
                   FileWriter fw=new FileWriter(new File("reportCard.txt"));
                   fw.write(names[indx]+"\n");
                   fw.write("Home Work one:"+Students[indx][0]+"\n");
                   fw.write("Home Work two:"+Students[indx][1]+"\n");
                   fw.write("Home Work three:"+Students[indx][2]+"\n");
                   fw.write("Quiz one:"+Students[indx][3]+"\n");
                   fw.write("Quiz two:"+Students[indx][4]+"\n");
                   fw.write("Exam one:"+Students[indx][5]+"\n");
                   fw.write("Exam two:"+Students[indx][6]+"\n");
                   fw.write("Final exam:"+Students[indx][7]+"\n");
                   fw.write("Total :"+calTotal(Students[indx])+"\n");
                  
                   char ch=gradeLetter(calTotal(Students[indx]));
                   fw.write("Grade Letter :"+ch+"\n");
                   double avg=calcAverage(Students);
                   fw.write("Class Average :"+avg+"\n");
                   int max=highest(Students);
                   int min=lowest(Students);
                   fw.write("Minimum Total :"+min+"\n");
                   fw.write("Maximum Total :"+max+"\n");
                   fw.close();
                  
                  
               }
               break;
           }
           default: {
               System.out.println("** Invalid Choice **");
               continue;
           }
           }
           break;

       }

   }

   private static int lowest(int[][] students) {
       int min=calcTot(students[0]);
       for(int i=0;i<students.length;i++)
       {
           if(min>calcTot(students[i]))
           {
               min=calcTot(students[i]);
           }
       }
       return min;
   }

   private static int calcTot(int[] scores) {
       int tot=0;
       for(int i=0;i<scores.length;i++)
       {
           tot+=scores[i];
       }
       return tot;
   }

   private static int highest(int[][] students) {
       int max=calcTot(students[0]);
       for(int i=0;i<students.length;i++)
       {
           if(max<calcTot(students[i]))
           {
               max=calcTot(students[i]);
           }
       }
       return max;
   }

   private static double calcAverage(int[][] students) {
       int tot=0;
       for(int i=0;i<students.length;i++)
       {
           for(int j=0;j<students[0].length;j++)
           {
               tot+=students[i][j];
           }
       }
       return ((double)tot/((students.length)));
   }

   private static char gradeLetter(int average) {
      
       char gradeLet=0;
       if (average >= 90 && average<=100)
           gradeLet = 'A';
           else if (average >= 80 && average < 90)
           gradeLet = 'B';
           else if (average >= 70 && average < 80)
           gradeLet = 'C';
           else if (average >= 60 && average < 70)
           gradeLet = 'D';
           else if (average < 60)
           gradeLet = 'F';
       return gradeLet;
   }

   private static int calTotal(int[] scores) {
       int tot=0;
       for(int i=0;i<scores.length;i++)
       {
           tot+=scores[i];
       }
       return tot;
      
   }

   private static int searchName(String name, String[] names) {
       for(int i=0;i<names.length;i++)
       {
           if(names[i].equalsIgnoreCase(name))
           {
               return i;
           }
       }
       return -1;
   }

   private static void displayNames(String[] names) {
System.out.println("Displaying the Student names :");
for(int i=0;i<names.length;i++)
{
   System.out.println(names[i]);
}
   }
}

===========================

Output#1:

1.Print a list of all students
2.Generate a report card for a specific student
Enter Choice :1
Displaying the Student names :
Hannah Abbott
Amelia Bones
Michael Corner
Vincent Crabbe
Marcus Flint
Gregory Goyle
Rolanda Hooch
Angelina Johnson
Viktor Krum
Neville Longbottom
Theodore Nott
Irma Pince
Stan Shunpike
Alicia Spinnet
Emmeline Vance
Myrtle Warren
Oliver Wood
Rose Weasley
Blaise Zabini

=======================

Output#2:

1.Print a list of all students
2.Generate a report card for a specific student
Enter Choice :2
Enter Student name :Oliver Wood

reportCard.txt (output file)

=============================Thank You