// Lets import our file functions.
 
import java.io.*;
 
 
public class Grades {
    // Setup an array of test students
    private static Grades.test student[] = new Grades.test[50];
 
    // Just for spunk we will create an inner class to keep this in one file.
    private static class test {
            public String id = "";
            public String answer = "";
            public double score = 0.0;
            public double grade = 0.0;
    }
 
 
    public static void main(String args[])
    {
 
            int total=0;
 
            // initialize(); This was removed because we initialize when we create students.
            getdata();
 
            int i = 1;
 
        // Loop through students until we reach our 50 limit or there were not that many in our class to begin with.
            while ((i < student.length - 1) && (student[i] != null))
            {
                total = 0;
 
                for(int j = 0; j < 22; j++)
                {             
                         // Here we are going to check student answer against "master key" student (at index 0)
                         if(student[0].answer.substring(j,j+1).equals(student[i].answer.substring(j,j+1)))
                         {
                               total = total + 5;
                         }
                         else if(student[i].answer.substring(j,j+1).equals(" "))
                         {
                               total = total - 4;
                         }
                         else
                         {
                               total = total - 2;
                         } 
                } 
 
                // Obviously if they end up leaving all blank or go negative, they get a zero for the grade.
                if (total < 0) { total = 0; }
 
                // Here we print out the student id, their answers and total points (not grade point average!)
                System.out.println(student[i].id + " " + student[i].answer + " " + total);
                i++;
            }
        }
 
 
    // This fills our students answers from file.
    private static void getdata()
    {
 
        try {
            // We setup a reader to read in text file students and answers.
 
            BufferedReader infile = new BufferedReader(new FileReader("tftest.txt"));
 
            String id = "";
            String answers = "";
 
            // We loop until we get all 50 students
                for (int i = 0; i < student.length - 1; i++)
                {
                                // Or until we hit the end of the line on our file.
                                if (((id = infile.readLine()) != null) && ((answers = infile.readLine()) != null)) {
                                        student[i] = new Grades.test();
                                        student[i].id = id;
                                        student[i].answer = answers;
                                }
                                else { break; }
                }
 
                infile.close();
 
            }
        catch (IOException e) {
            System.out.println(e.toString());    
        }
    }
}