// Zorah Fung, CSE 142
//
// This program takes an input file of midterm scores ranging from 0 to 10
// and it prints a text and graphical histogram showing the frequencies of
// each midterm score.

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

public class Histogram {
   public static final int MAX_SCORE = 100;  // max possible score
   public static final int SHIFT = 5;

   public static void main(String[] args) throws FileNotFoundException {
      Scanner input = new Scanner(new File("scores.txt"));
        
      // read file into count array
      int[] count = new int[MAX_SCORE + 1];
      while (input.hasNextInt()) {
         int score = Math.min(input.nextInt() + SHIFT, MAX_SCORE);
         count[score]++;
      }

      // use array to produce a histogram
      for (int score = 0; score < count.length; score++) {
         // count[i] is the number of people with score i
         int numPeople = count[score];   
         System.out.print(score + ": ");
         // print a * for each person
         for (int star = 1; star <= count[score]; star++) {
            System.out.print("*");
         }
         System.out.println();
      }
   } 
}