Read input,but got error

[Jeannie Kaw]

If I want to design an interface/Application which will perform the following functions:
Create a record contains 15 students and read the input from user.
1) We are free invited to enter the details of a Student with the name,
and enter the 3 Marks obtained in each 3 subjects.(like..Integer.parseInt(input);read their input
2) Calculate the average test score of each student.
3) Display the name of the student and test score according to their grade esTination, Credit, Pass
or Failed.
Fail=less than 40
Pass=less than 60 more than 40
Credit=Less than 70 more than 60
Destination=More than 70
4) Calculate and display the highest and lowest average score.
5) Develop in Application and print out the input from what user entered.
The report program should display in this format.
Roger Investigation Company
=====================================================================
S.No Name of Student Marks in 3 subject Average Grade
Mark1 Mark2 Mark3
=====================================================================
1. Mayer 65 79 24 56 PASS
2. Raite 55 78 69 67.33 CREDIT
3.......................................
4. .....................................
till 15 students.
=====================================================================
Highest Average = 67
Lowest Average = 56

//run this program as GoodLuck.java
import java.io.*;
import java.lang.*;
class GoodLuck
{
       public static void main(String args[]) throws IOException
       {
String[] name = new String[15];
               int[] students = new int[15];
               String Studname;
               int mark1, mark2, mark3;
 
                BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter your Name:");
                 System.out.println("Enter your mark1");
                 System.out.println("Enter your mark2");
                 System.out.println("Enter your mark3");
                 
     for(int i =0; i <=14; i++)
    {
       Studname = input.readLine();
mark1= Integer.parseInt(input.readLine());
                mark2= Integer.parseInt(input.readLine());
                mark3= Integer.parseInt(input.readLine());
       name[i] =Studname;
                          students[i] = mark1;
                                students[i] = mark2;                              
students[i] = mark3;
                
                 }; 
   double highestAvg = -1.0;
      double lowestAvg = 101.0;    

      
   for (int i = 0; i < students.length; i++)
       
      for (int i = 0; i < students.length; i++)
      {
           double avg = (students[i].mark1 + students[i].mark2 +
                                 students[i].mark3) / 3.0;
           if (avg > highestAvg)
               highestAvg = avg;
           if (avg < lowestAvg)
               lowestAvg = avg;
          System.out.print (students[i].name + " "  +
                             students[i]+ " "  +
                             students[i]+ " " +
                             students[i]+ " " + avg + " ");
           if (avg < 40)
               System.out.println ("FAIL");
           else
           if (avg < 60)
               System.out.println ("PASS");
           else
           if (avg < 70)
               System.out.println ("CREDIT");
           else
               System.out.println ("DISTINCTION");
      }
      System.out.println ();
      
      System.out.println ("Highest Average = " + highestAvg);
      System.out.println ("Lowest Average = " + lowestAvg);
   }
}

(edited by Cindy to format code)
[ April 30, 2002: Message edited by: Cindy Glass ]

[Cindy Glass]

Please change your name to be compliant with JavaRanch's naming policy.
Your displayed name should be 2 separate names with more than 1 letter each. We really would prefer that you use your REAL name.
Thanks,
Cindy

[Cindy Glass]

So - what was the error?

[Irene Loos]

Hello Jeannie,
I just glance over your code but did not run it. Try to create another array of mark scores for each students[i] entry and put student scores in this array. You will have an array within array.
Irene

[Jamie Robertson]

Jeannie:
Most of us help out in more than one forum. when you post the same topic multiple times in different forums, it can be confusing as to which one to give a response. It is better for those helping you if you choose the most appropriate forum to post a problem. Please help Jeannie here instead of at this topic.
Jamie