[java] I am kinda new to this Java stuff...

public class parallel {
   
   public static void main(String[] pars) {
   
      int n;
      System.out.print("Enter number of students: ");
      n= JLiveRead.readInt();

      
      
      int x = 0;
      int y = 0;
      double hold = 0;
      double hold2 = 0;
      double hold3 = 0;
      double lowest = 0;
      double greatest = 0;
      double totalaverage = 0;

      String[] name;
      int[] exam1;
      int[] exam2;
      int[] exam3;
      double[] average;

      name=  new String[16];
      exam1= new int[n];
      exam2= new int[n];
      exam3= new int[n];
      average= new double[n];
    
      
      for (int i= 0; i < n; i++) {

         System.out.println();

         System.out.print("Enter Student #" + (i + 1) + ": ");
         name[x]= JLiveRead.readLineString();         

         System.out.print("Enter Exam #1 Score: ");
         exam1[x]= JLiveRead.readLineInt();          
         
         if (exam1[x] < 0 || exam1[x] > 100) {
            System.out.print("Grade must be between 0-100.  Enter again: ");
            exam1[x]= JLiveRead.readLineInt();
         }

         System.out.print("Enter Exam #2 Score: ");
         exam2[x]= JLiveRead.readLineInt();         

         if (exam2[x] < 0 || exam2[x] > 100) {
            System.out.print("Grade must be between 0-100.  Enter again: ");
            exam2[x]= JLiveRead.readLineInt();
         }

         System.out.print("Enter Exam #3 Score: ");
         exam3[x]= JLiveRead.readLineInt();         

         if (exam3[x] < 0 || exam3[x] > 100) {
            System.out.print("Grade must be between 0-100.  Enter again: ");
            exam3[x]= JLiveRead.readLineInt();
         }

         System.out.println();

         average[x] = ( exam1[x] + exam2[x] + exam3[x] ) / 3;         

         x= x+1;
              
      }            

      System.out.println("Student Exam Average: ");
       

      for (int i= 0; i < n; i++) {

         System.out.println(name[y] + "   " + average[y]);
         y= y+1;
  
      }     


      System.out.println();

      x= 0;       

      for (int i= 0; i < n-1; i++) {
         if (average[x] < average[x+1])
            lowest= average[x]; 
         else 
            lowest= average[x+1];
         x= x+1;  
      }

      System.out.println("Students having the lowest average: (" +  (int)lowest +")");

      x= 0;

      for (int i= 0; i < n; i++) {
         if (average[x] == lowest)
            System.out.println(name[x]);
         x= x+1;
      }

      System.out.println();
      System.out.println();

      x= 0;

      for (int i= 0; i < n-1; i++) {

         if (average[x] < average[x+1])
            greatest= average[x+1];
         else 
            greatest= average[x];
         x= x+1;
         
 
      }

      System.out.println("Students having the greatest average: (" + (int)greatest  + ")");
      
      x= 0;
      for (int i= 0; i < n; i++) {
         if (average[x] == greatest)
            System.out.println(name[x]);

         x= x+1;
      }




      System.out.println();
      System.out.println();    

    x= 0;

    for (int i = 0; i < n; i++) {

       hold= exam1[x] + hold;
       x= x+1;       
    }
       

    System.out.println("Exam #" + 1 + " Class Average: " + (hold / n));
    
    x = 0;
    

    for (int i = 0; i < n; i++) {

       hold2= exam2[x] + hold2;
       x= x+1;       
    }
       

    System.out.println("Exam #" + 2 + " Class Average: " + (hold2 / n));

    x= 0;
    
    for (int i = 0; i < n; i++) {

       hold3= exam3[x] + hold3;
       x= x+1;       
    }
       

    System.out.println("Exam #" + 3 + " Class Average: " + (hold / n));

    totalaverage= (hold + hold2 + hold3 ) / (n * 3);
    System.out.print("Overall Class Exam Average: " + totalaverage);
  
   }

}