Thread: I need calculation

/*
	Chapter 5: Programming Assignment 7
	Programmer:
   	Date:
	Program Name: AveragingGradesTemplate
*/
 
import java.io.*;
 
public class AveragingGradesTemplate
{
   public static void main(String[] args) throws IOException
   {
      //Declaring variables
      BufferedReader dataIn = new BufferedReader(new InputStreamReader(System.in));
      	String grade, strSize;
      	float average;
      	int size;
 
      System.out.print("How many grades will you enter? ");
      	strSize = dataIn.readLine();
   	 	size = Integer.parseInt(strSize);
		float grades[] = new float[size];
 
      for (int i=1; i<size; i++)
      {
 
	   //Get input from user
			 System.out.print("Enter grade " + i + ": ");
			 grade = dataIn.readLine();
			 grades[i] = Float.parseFloat(grade);
 
      }
 
	  average = averageGrades(grades, size);
 
 
 
      //Write a for loop to display grades
 
 
 
 
      System.out.println("");
      System.out.println("The average grade was "+average);
   }
 
   public static float averageGrades(float[] g, int s)
   {
	   float total = 0;
	   float a;
	   // write a for loop to calculate the total
                   	??????????????????????????????????
                      ?? ?????????????????????????????????
                       ?????????????????????????????????
 
	   a = total / s;
	   return a;
   }
 
}

I need to write a for loop for my calculations and I am lost.

grade [1];
grade [2];
and so on

It doesnt make sense. Can you give me an example to so what i need to do. this is what i got!!!

for (int i=1; i<size; i++)

[i] =80
[i]= 70

or less I nees to take a variabe and set it to something.