insert solution code here
import java.util.Scanner;
/**
 * A4Q1 -
 *
 * COMP 1010 Section A00
 * INSTRUCTOR
 * ASSIGNMENT 4, Question 1
 * @author 1010
 * @version 2010-Dec-3
 *
 * PURPOSE: simulation with two n-sided dice
 */
public class A4Q1 {

	public static void main(String[] args) {

		// declare variables
		int[] rollArray;
		Scanner myScanner = new Scanner(System.in);
		int numSides;
		int numSteps;

		// get the number of sides
		System.out.println("Enter the number of sides to the dice");
		numSides = myScanner.nextInt();

		// allocate the memory for the array
		rollArray = new int[2*numSides - 1];

		// get the number of steps
		System.out.println("Enter the number of simulation steps");
		numSteps = myScanner.nextInt();

		while(numSteps != -1) {

			// initialize all elements of the array to 0
			initializeArray(0, rollArray);

			// perform the simulation

			performSimulation(numSides, rollArray, numSteps);

			// print the histogram
			printRollHistogram(numSides, rollArray, numSteps);

			// get the next number of simulation steps
			System.out.println("Enter the number of simulation steps");
			numSteps = myScanner.nextInt();

	}

	System.out.println("Programmed by [your name here].\nEnd of Processing.");

	}

	/**
	* Set all array elements to an initial value
	*
	* @param initValue The initial value
	* @param array The array of integers
	*
	*/
	public static void initializeArray(int initValue, int[] array)  {
		for(int i = 0; i < array.length; i++) {
			array[i] = initValue;
		}
	}

	/**
	* Generate a random number between 1 and a maximum number (inclusive)
	*
	* @param maximum The maximum number to generate
	* @return A random number between 1 and maxium (inclusive)
	*/
	public static int generateRandomNumber(int maximum) {
		int number = (int)(Math.random()*(maximum) + 1);  // generate a random number between 1 and maximum
		return number;
	}


	/**
	* Perform the simulation by rolling the dice a number of times
	*
	* @param numSides The number of sides to the dice
	* @param counts An array containing the number of times each sum was rolled
	* @param numSteps The number of steps in the simulation
	*
	*/
	public static void performSimulation(int numSides, int[] counts, int numSteps) {
		int roll1;
		int roll2;
		for(int i = 1; i<=numSteps; i++) {
			roll1 = generateRandomNumber(numSides);
			roll2 = generateRandomNumber(numSides);
			counts[roll1 + roll2 - 2]++;
		}

	}

	/**
	* Print out the histogram
	*
	* @param numSides The number of sides to the dice
	* @param counts An array containing the number of times each sum was rolled
	* @param numSteps The number of steps in the simulation
	*
	*/
	public static void printRollHistogram(int numSides, int[] counts, int numSteps) {
		int percentage;

		System.out.println("Results of a "+ numSteps + "-step simulation with two " + numSides + "-sided dice: ");
		for(int i = 0; i < counts.length; i++) {
			percentage = (int)Math.round(counts[i] / ((double) numSteps) * 100);
			if(i < 8) {
				printBar("Sum of  " + (i+2), percentage, '=');
			}
			else {
				printBar("Sum of " + (i+2), percentage, '=');
			}
		}
	}

	/**
	* Prints out a single bar for a histogram.
	*
	* @param label the label this bar should use
	* @param percent the number of symbols the bar should have
	* @param barSymbol the character the bar uses to indicate 1%
	*/
	public static void printBar(String label, int percent, char barSymbol) {
		// works well when all labels are the same width, but not so well otherwise.
		System.out.print(label + ": ");

		for (int i = 0; i < percent; i++) {
			System.out.print(barSymbol);
		}

		System.out.println(" (" + percent + "%)");
	}


}