SevenEleven Java Program

// By: Sammy Samkough
// 7s & 11s
// Counts number of times you roll a sum of 7 or 11

import java.util.Random;

public class SevenEleven
{
	private static Random r = new Random();

	private int numFaces;
	private int faceValue;

	public SevenEleven()
	{
		numFaces = 6;
		faceValue = 1;
	}

	public SevenEleven(int sides)
	{
		numFaces = sides;
		faceValue = 1;
	}

	public void roll()
	{
		faceValue = (int)(Math.random() * numFaces) + 1;
	}

	// get results of rolled die
	public int getFaceValue()
	{
		return faceValue;
	}

	public String toString()
	{
		// we put strings since faceValue is an int
		return "" + faceValue;
	}
}
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// By: Sammy Samkough
// 7s & 11s
// Counts number of times you roll a sum of 7 or 11

public class SevenElevenMain
{
	public static void main(String args[])
	{
		// create
		SevenEleven d1 = new SevenEleven();
		SevenEleven d2 = new SevenEleven(6);

		int sum = 0;

		int x = 0, y = 0;

		// rolls 5000 times
		for (int i = 0; i < 5000; i++)
		{
			// rolls
			d1.roll();
			d2.roll();

			// get results
			d1.getFaceValue();
			d2.getFaceValue();

			sum = d1.getFaceValue() + d2.getFaceValue();

			if (sum == 7)
			{
				x++;
			}

			if (sum == 11)
			{
				y++;
			}

		}

		// print out
		System.out.println("D1 = " + d1);
		System.out.println("D2 = " + d2);
		System.out.println("Sum = " + sum);
		System.out.println("The expected rolls for 7 were 833 but it actually gets called " + x + " time(s).");
		System.out.println("The expected rolls for 11 were 278 but it actually gets called " + y + " time(s).");
	}
}

/*
D1 = 6
D2 = 5
Sum = 11
The expected rolls for 7 were 833 but it actually gets called 825 time(s).
The expected rolls for 11 were 278 but it actually gets called 260 time(s).
*/