Write a Java program to generate 200 random integers in the range of 0 and 999 (both inclusive). Then find the appearance frequency of each digit (0-9) in these numbers, and print a frequency histogram.

import java. util. Random;

public class ArrayBar {

public static void main (String[] args) {

int arr[] = new int[10];

Random r = new Random ();

int n = 0;

for (int i = 0; i < 200; i++) {

n = r. nextInt (1000);

while (n > 0) {

arr[n % 10]++;

n = n / 10;

}

}

for (int i = 0; i < 10; i++) {

System. out. print (i + " (" + arr[i] + ") : ");

for (int j = 0; j < arr[i]; j++) {

System. out. print ("*");

}

System. out. println ();

}

}

}