Assignment# Final Semester 1

Code

    /// Name: Tommy Oyuntseren
    /// Period: 7
    /// Program Name: DisplayProb
    /// File Name: DisplayProb.java
    /// Date: 1/21/2016

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

public class DisplayProb
{
    public static void main( String[] args )
    {
        System.out.println(" Welcome to Coin Flip probability program!\n");

        int flips = getFlips();

        int tails = 0;
        int heads = 0;
        Random r = new Random();

        for (int i = 0; i < flips; i++)
        {
            if (r.nextInt(2)==0) tails++;
            else heads++;
        }

        float headsProb = ((float) heads / flips * 100);
        float tailsProb = ((float)tails/flips*100);

        System.out.println("\n Heads: "+heads+"    Tails: "+tails);

        System.out.println("\n Heads probability: "+headsProb+"%     Tails probability: "+tailsProb+"%\n");

        System.out.println("\n Thank you for using our products!");
    }

    static int getFlips()
    {
        Scanner keyboard = new Scanner(System.in);
        int flips = 0;
        boolean exception = false;

        while (flips<=0 || flips >= 2100000000)
        {
            keyboard = new Scanner(System.in);
            exception = false;
            
            {
                System.out.print("\n Please input desired integer value of coin flips (0, 2.1 billion)\n >");
                flips = keyboard.nextInt();
            }
            
            {
                System.out.println("\n Wrong Input!!! Has to be an integer!");
                exception = true;
                flips = 0;
            }

            if ((flips<=0 || flips >= 2100000000)&&!exception)
                System.out.println("\n Wrong Input!!! Has to be more than 0, but less than 2.1 billion!");
        }
        System.out.println();

        return flips;
    }
}
   

  

Picture of the output