import java.util.Random;

import java.util.Scanner;

public class HistogramCLI $\{$

public static void main$($String$[]$ args$)\{$

boolean again;

Scanner scan $=$ new Scanner$($System$.$in$)$;

Random rand $=$ new Random$()$;

$//1.$ Declare some variables:

$//-6$ int variables: dice, sides, rolls, dieSum,

$//$ minIndex, maxIndex. Initialize

$//$ all these to zero

$//-$A Histogram reference variable by the name "hist"

$//($just declare $--$ do not initialize yet!$)$

$//-$An int array variable by the name "counts"

$//($just declare $--$ do not initialize yet!$)$

$//$ NOTE: The remainder of the code will involve several

$//$ nested loops. Please pay attention to the

$//$ indentation of my comments, to help yourself

$//$ keep track of what is nested where

$//2.$ Set up an outer do$-$while loop, which ends when

$//$ the boolean variable "again" is false

$//3.$ A do$-$while that asks how many dice the user wants

$//($constrain the user to $1-3)$ and assigns the

$//$ resulting value to the variable "dice".

$//4.$ A do$-$while that asks how many sides each die should have

$//($constrain the user to $2-9)$ and assigns the resulting

$//$ value to the variable "sides".

$//5.$ A do$-$while that asks how many times to roll the die

$//($constrain the user to $1000-100$ million$)$ and assigns the

$//$ resulting value to the variable "rolls".

System.out.println$()$;

$//6.$ Assign values to minIndex and maxIndex,

$//$ based on the number of dice and how

$//$ many sides each die has.

$//7.$ Initialize counts to a new int array

$//$ with a size of maxIndex plus $1$

$//8.$ Repeatedly roll the dice

$//--$Set "dieSum" back to zero

$//--$For each die, generate a random integer

$//$ between $1$ and the number of sides, and

$//$ add the resulting value to "dieSum"

$//--$Increment the element in the counts array

$//9.$ Call the Histogram constructor with the variables counts,

$//$ minIndex, maxIndex, MAX$\_$LENGTH; and assign the object to hist.

$//$ Then, call the drawHor$()$ and drawVer$()$ methods, with lines

$//$ skipped in between for neater output.

$//$ Sees if user wants to go again.

System.out.print$("$Continue$?(\backslash "$true$\backslash "$ for yes and $\backslash "$false$\backslash "$ for no$)$: $")$;

again $=$ scan.nextBoolean$()$;

System.out.println$(\text{'}$

$\text{'})$;

$//$ end of the do$-$while loop indicated in step $2.($The condition is the

$//$ boolean variable "again"$)$

$\}$

$\}$

Java code in all the steps