Assignemnt Final Exam and Final Exam Program

Code

/// Name: Tristan Chung
/// Period: 5
/// Program Name: Final Exam
/// File Name: FinalExam.java
/// Date Finished: 1/20/2016

import java.util.Random;
import java.util.Scanner;

public class FinalExam
{
	public static void main( String[] args )
	{
		Scanner keyboard = new Scanner(System.in);
		Random rng = new Random();
        
        int heads = 0;
        int tails = 0;
        int n = 0;
        
        System.out.println("Welcome to the Coin Flip Simulation!");
        System.out.println("How many coin flips would you like?(1- 2.1mill)");
        System.out.print("> ");
        int flips = keyboard.nextInt();

		do
		{
			int flip = rng.nextInt(2);

			if ( flip == 1 )
				heads++;
			else
                tails++;
                
        n++;
        }
        while ( n != flips);
        System.out.println("You rolled " + heads + " heads and " + tails + " tails.");
        
        System.out.println(" ");
        
        double probOfHeads = (double)heads / flips;
        
        double probOfTails = (double)tails / flips; 
        
        System.out.println("And the probability that you will get heads is " + probOfHeads*100 + "%.");
        System.out.println("And the probability that you will get tails is " + probOfTails*100 + "%.");
        // 1. I used a do while loop, because it will change the integer n before the condition is checked. Thus it will stop at the correct number given. You need 3 integer variables for the number of heads, numbger of tails, and number of coin flips 
        // 2. I concluded that 14 flips gets a consistently close probablitity to 50%. 
    }
}
    

Picture of the output