grades.java

import java.util.*;
/**
 * Write a description of class strings here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class grades
{
    public static void main(String args[]){
        //initialize variables
        int[] grades = new int[20];
        int min = 60;
        int max = 100;
        int low = 100;
        double sum = 0.0;
        double highSum = 0.0;
        
        //create each grade, store a sum and the low
        for(int i = 0; i<20; i++){
            grades[i] = (int)(Math.random() * ((max-min) + 1)) + min;
            sum += grades[i];
            if(grades[i]<low){//check for low
                low = grades[i];
            }
        }
        //create averages
        highSum = sum-low;
        double average = (int)(100*(sum/grades.length))/100.0;
        double highAverage = (int)(100*(highSum/grades.length))/100.0;
        
        //display results
        System.out.println(average + " = average");
        System.out.println(highAverage + " = average without lowest grade");
        System.out.println(low + " = low");
        
    }
}