package numbers;

import java.util.*;

public class histogram {

    public static void main(String[] args)
    {

        Random rand = new Random();
        int[] myArray;
        myArray = new int[50];

        for(int i = 0; i < myArray.length; i++)
        {
            myArray[i] = rand.nextInt(50) +1;
        }
        printArray(myArray);
        checkMatches(myArray);
        printHistogram(myArray);

    }


    public static void printArray(int[] array)
    {

        for (int i = 0; i < array.length; i++)
        {
            if(i%5==0)
            {
                System.out.println();
            }
            System.out.printf("%5d", array[i]);
        }
        System.out.println();

    }



    public static void checkMatches(int[] array)
    {
        for (int x = 1; x < array.length+1; x++)
        {
            int matchCount = 0;
            for(int i = 0; i < array.length; i++)
            {
                if(array[i] == x)
                {
                    matchCount++;
                }
            }
            System.out.println("There is " + matchCount + " instances of the number " + x);
        }
    }

    private static void printHistogram(int[] array) {
         for (int i = 1; i < array.length; i++) {
            String label = i + " : ";
            System.out.println(label + convertToStars(array[i]));
        }
    }

    private static String convertToStars(int num) {
        StringBuilder builder = new StringBuilder();
        for (int j = 1; j < num; j++) {
            builder.append('*');
        }
        return builder.toString();
    }




}