Semester One Final

Code

    ///Name: Luke Shin
    ///Period: 7
    ///Project Name: Semester One Final
    ///File Name: BabyCalculator.java
    ///Date: 01/21/2015
    
    import java.util.Scanner;
    import java.util.Random;
    import java.util.InputMismatchException;

    public class DisplayingProbability
    {
        public static void main( String[] args )
        {
            System.out.println(" Let's play some coin flips!!!\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 See you next time!!!");
        }

        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();
            

                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