// Reads an input file of test scores (integers) and displays a
// graphical histogram of the score distribution.

import java.awt.*;
import java.io.*;
import java.util.*;

public class Histogram2 {
    public static final int CURVE = 7;   // adjustment to each exam score
    
    public static void main(String[] args) throws FileNotFoundException {
        Scanner input = new Scanner(new File("midtermA.txt"));
        
        // array of counters of test scores from 0 - 100 inclusive
        int[] counts = new int[101];
        
        // read file into counts array
        // example: if score is 87, then do counts[87]++
        while (input.hasNextInt()) {
            int score = input.nextInt();
            
            // curve the exam score (but cap it at 100 points)
            score = Math.min(score + CURVE, 100);
            
            counts[score]++;
        }
        
        // print stars for each student who got a particular score
        // example: if counts[87] is 6, print "87: ******"
        for (int i = 0; i < counts.length; i++) {
            if (counts[i] > 0) {
                System.out.print(i + ": ");
                for (int j = 0; j < counts[i]; j++) {
                    System.out.print("*");
                }
                System.out.println();
                
            }
        }

        // use a DrawingPanel to draw the histogram
        DrawingPanel p = new DrawingPanel(counts.length * 3 + 6, 200);
        Graphics g = p.getGraphics();
        g.setColor(Color.BLACK);
        for (int i = 0; i < counts.length; i++) {
            g.drawLine(i * 3 + 3, 175, i * 3 + 3, 175 - 5 * counts[i]);
        }
    }
}