Handling Arrays with Students Grades

Question

Can anyone help!
I am traying to compile program Grade2 which processes student assignment marks to determine how many students obtained each of possible grades: 1 to 5. The user enters each grade as an integer and to mark the end of the data stream a 0 or negative number. One should use suitable array to hold the numbers of students with each grade.
This is what I compiled so far:
import java.io.*;
class Grade2
     public static void main(String[]args)
     throws IOException
          int grade2, count[];
     System.out.println ("Input a grade");
          grade2=Course_io.readInt();
          for (int i=0; i<5; i++)
          while (grade2>0)
               if (grade2==1)
                    count[0]=1;
               else if (grade2==2)
                    count[1]=2;
               else if (grade2==3)
                    count[2]=3;
               else if (grade2==4)
                    count[3]=4;
               else if (grade2==5)
                    count[4]=5;
               else if (grade2>5)
                    System.out.println("Enter correct grade");
     System.out.println ("Input a grade");
               grade2=Course_io.readInt();
     System.out.println("The result is "+count[0]);
     System.out.println("The result is "+count[1]);
     System.out.println("The result is "+count[2]);
     System.out.println("The result is "+count[3]);
     System.out.println("The result is "+count[4]);
When compiling this program shows two errors: refering to: grade2=Course__io.read.Int();
I do not know where I am doing wrong?
emni

Answer 1

Dear Joni Salonen,
Thank you for last reply, it was a error of capital letter G for grades2, as you rightly noted. Now it complies fine but still does not do the task, eg I am supose to count a number of students with each grade and store them in the array, this rutine only notes array elements index for grade entered not a number of students with that grade. Please refer back to the original code and advise what to do to reflect this task. This is a repeat of the code:
import java.io.*;
class grade2
     public static void main(String[]args)
     throws IOException
          int grade2, count[];
          System.out.println ("Input a grade");
          grade2=Course_io.readInt();
          count = new int[5];
          for (int i=0; i<5; i++)
          while (grade2>0)
               if (grade2==1)
                    count[0]=1;
               else if (grade2==2)
                    count[1]=2;
               else if (grade2==3)
                    count[2]=3;
               else if (grade2==4)
                    count[3]=4;
               else if (grade2==5)
                    count[4]=5;
               else if (grade2>5)
                    System.out.println("Enter correct grade");
               System.out.println ("Input a grade");
               grade2=Course_io.readInt();
          System.out.println("Number of Grades no 1 is "+count[0]);
          System.out.println("Number of Grades no 2 is "+count[1]);
          System.out.println("Number of Grades no 3 is "+count[2]);
          System.out.println("Number of Grades no 4 is "+count[3]);
          System.out.println("Number of Grades no 5 is "+count[4]);
Thanks!
emni