Maximum Minimum Values

I'm working on some code and the book I have is being of no real help as well as in the internet since most people use finding max/min in arrays but I need to use it from data entered by the user.

Code:

---

import javax.swing.JOptionPane;
public class exam
{
        public static void main(String [] args)
        {
                String inputString;
                int testnum=1;
                int testScore;
                double average;
                int max;
                int min;
                do
                {
                        inputString=JOptionPane.showInputDialog("Please enter your test score.");
                                testScore=Integer.parseInt(inputString);
                        testnum++;
                }while(testnum<=10);
                average=(testScore+testScore+testScore+testScore+testScore+testScore+testScore+testScore+testScore+testScore)/10;
                JOptionPane.showMessageDialog(null,"The lowest score is " + min(testScore));
                JOptionPane.showMessageDialog(null, "The highest score is " +max(testScore));
                JOptionPane.showMessageDialog(null, "The average score is " + average);

                System.exit(0);
        }
}

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You'll find the min and max similar to how you'd manually do it with an array: have a min var that you'll compare the input to and if input is less, set = to input, and similarly for max (though you'll be checking if input value is greater than max of course). Also, you'll want a total value that you add as the values are input. Your testScore + testScore + .... will only add the last entered value ten times.

Keep on working at it. Much luck!

Crud, I didn't even see the error with finding the average. If I were to add another 9 lines and change testScore to testScore1 and so on. Would that work?