Android Keeping Track of Button Selections
<p>I have written some code in java that will guess a number based on the user's selections. It's pretty simple code. I am trying to integrate this code into an android app, by displaying the different number set each on different pages. The user will then click "Yes" if their number is in the set, or "No" if it isn't, and they'll then be redirected to another page. </p>

<p>The problem is I don't know how to keep track of their selections across the pages so that I can run the "If" statements based on their values as shown in the original code. Is there a simple way to keep track of whether they click "Yes" or "No" across the pages? </p>

<p><strong>This is my java code</strong></p>

<pre><code>public class BinaryGame 
{
    public static void main (String []args)
    {
        String set1, set2, set3, set4, set5, another = "y";
        int num, num1, num2, num3, num4, rand, number = 0, count = 0;
        final int PER_LINE = 4;

        Scanner scan = new Scanner (System.in);
        Random generator = new Random();

        while (another.equalsIgnoreCase("y"))
        {
            System.out.println ("Think of a number between 0 and 31. And I will be able to figure it out.");
            System.out.println ("");

            rand = generator.nextInt(2);
            if (rand == 1)
            {
                for (num = 16; num &lt; 32; num++)
                {
                    System.out.print(num + " ");

                    count++;
                    if (count % PER_LINE ==0)
                    System.out.println ();
                }

                System.out.print ("Is your number in this group? y/n: ");
                set1 = scan.nextLine();
                if (set1.equalsIgnoreCase("y"))
                number += 16;
                else
                number += 0;
            }
            else 
            {
                for (num = 0; num &lt; 16; num++)
                {
                    System.out.print(num + " ");

                    count++;
                    if (count % PER_LINE ==0)
                    System.out.println ();
                }

                System.out.print ("Is your number in this group? y/n: ");
                set1 = scan.nextLine();
                if (set1.equalsIgnoreCase("y"))
                    number += 0;
                else
                    number += 16;
            }

            System.out.println ();

            rand = generator.nextInt(2);
            if (rand == 1)
            {
                for (num1 = 8; (num1 &lt; 16) || (23 &lt; num1 &amp;&amp; num1 &lt; 32) ; num1++)
                {
                    System.out.print (num1 + " ");

                    count++;
                    if (count % PER_LINE ==0)
                    System.out.println ();
                    if (num1 == 15)
                    num1 = 23;
                }
                System.out.print ("Is your number in this group? y/n: ");
                set2 = scan.nextLine();
                if (set2.equalsIgnoreCase("y"))
                number += 8;
                else
                number += 0;
            }
            else
            {
                for (num1 = 0; (num1 &lt; 8) || (15 &lt; num1 &amp;&amp; num1 &lt; 24) ; num1++)
                {
                    System.out.print (num1 + " ");

                    count++;
                    if (count % PER_LINE ==0)
                    System.out.println ();
                    if (num1 == 7)
                    num1 = 15;
                }
                System.out.print ("Is your number in this group? y/n: ");
                set2 = scan.nextLine();
                if (set2.equalsIgnoreCase("y"))
                number += 0;
                else
                number += 8;
            }
            System.out.println ();
            rand = generator.nextInt(2);
            if (rand == 1)
            {
                for (num2 = 4; (num2 &lt; 8) || (11 &lt; num2 &amp;&amp; num2 &lt; 16) || (19 &lt; num2 &amp;&amp; num2 &lt; 24) || (27 &lt; num2 &amp;&amp; num2 &lt; 32); num2++)
                {
                    System.out.print (num2 + " ");

                    count++;
                    if (count % PER_LINE ==0)
                        System.out.println ();
                    if (num2 == 7)
                        num2 = 11;
                    if (num2 == 15)
                        num2 = 19;
                    if (num2 == 23)
                        num2 = 27;
                }

                System.out.print ("Is your number in this group? y/n: ");
                set3 = scan.nextLine();
                if (set3.equalsIgnoreCase("y"))
                    number += 4;
                else
                    number += 0;
            }
            else
            {
                for (num2 = 0; (num2 &lt; 4) || (7 &lt; num2 &amp;&amp; num2 &lt; 12) || (15 &lt; num2 &amp;&amp; num2 &lt; 20) || (23 &lt; num2 &amp;&amp; num2 &lt; 28); num2++)
                {
                    System.out.print (num2 + " ");

                    count++;
                    if (count % PER_LINE ==0)
                        System.out.println ();
                    if (num2 == 3)
                        num2 = 7;
                    if (num2 == 11)
                        num2 = 15;
                    if (num2 == 19)
                        num2 = 23;
                }

                System.out.print ("Is your number in this group? y/n: ");
                set3 = scan.nextLine();
                if (set3.equalsIgnoreCase("y"))
                    number += 0;
                else
                    number += 4;
            }
            System.out.println ();
            rand = generator.nextInt(2);
            if (rand == 1)
            {
                for (num3 = 2; (num3 &lt; 4) || (5 &lt; num3 &amp;&amp; num3 &lt; 8) || (9 &lt; num2 &amp;&amp; num3 &lt; 12) || (13 &lt; num3 &amp;&amp; num3 &lt; 16) || 
                    (17 &lt; num3 &amp;&amp; num3 &lt; 20) || (21 &lt; num3 &amp;&amp; num3 &lt; 24) || (25 &lt; num3 &amp;&amp; num3 &lt; 28) || (29 &lt; num3 &amp;&amp; num3 &lt; 32); num3++)
                {
                    System.out.print (num3 + " ");

                    count++;
                    if (count % PER_LINE ==0)
                        System.out.println ();
                    if (num3 == 3)
                        num3 = 5;
                    if (num3 == 7)
                        num3 = 9;
                    if (num3 == 11)
                        num3 = 13;
                    if (num3 == 15)
                        num3 = 17;
                    if (num3 == 19)
                        num3 = 21;
                    if (num3 == 23)
                        num3 = 25;
                    if (num3 == 27)
                        num3 = 29;
                }
                System.out.print ("Is your number in this group? y/n: ");
                set4 = scan.nextLine();
                if (set4.equalsIgnoreCase("y"))
                    number += 2;
                else
                    number += 0;
            }
            else
            {
                for (num3 = 0; (num3 &lt; 2) || (3 &lt; num3 &amp;&amp; num3 &lt; 6) || (7 &lt; num2 &amp;&amp; num3 &lt; 10) || (11 &lt; num3 &amp;&amp; num3 &lt; 14) || 
                (15 &lt; num3 &amp;&amp; num3 &lt; 18) || (19 &lt; num3 &amp;&amp; num3 &lt; 22) || (23 &lt; num3 &amp;&amp; num3 &lt; 26) || (27 &lt; num3 &amp;&amp; num3 &lt; 30); num3++)
            {
                System.out.print (num3 + " ");

                count++;
                if (count % PER_LINE ==0)
                    System.out.println ();
                if (num3 == 1)
                    num3 = 3;
                if (num3 == 5)
                    num3 = 7;
                if (num3 == 9)
                    num3 = 11;
                if (num3 == 13)
                    num3 = 15;
                if (num3 == 17)
                    num3 = 19;
                if (num3 == 21)
                    num3 = 23;
                if (num3 == 25)
                    num3 = 27;
            }
            System.out.print ("Is your number in this group? y/n: ");
            set4 = scan.nextLine();
            if (set4.equalsIgnoreCase("y"))
                number += 0;
            else
                number += 2;
            }
            System.out.println ();
            rand = generator.nextInt(2);
            if (rand == 1)
            {
                for (num4 = 1; num4 &lt; 32; num4 += 2)
                {
                    System.out.print (num4 + " ");
                    count++;
                    if (count % PER_LINE ==0)
                        System.out.println ();
                }
                System.out.print ("Is your number in this group? y/n: ");
                set5 = scan.nextLine();
                if (set5.equalsIgnoreCase("y"))
                    number += 1;
                else
                    number += 0;
            }
            else
            {
                for (num4 = 0; num4 &lt; 32; num4 += 2)
                {
                    System.out.print (num4 + " ");
                    count++;
                    if (count % PER_LINE ==0)
                        System.out.println ();
                }
                System.out.print ("Is your number in this group? y/n: ");
                set5 = scan.nextLine();
                if (set5.equalsIgnoreCase("y"))
                    number += 0;
                else
                    number += 1;
            }
            System.out.println ();
            System.out.println ("You chose: " + number);
            number = 0;
            System.out.print ("Would you like to play again? y/n: ");
            another = scan.nextLine();
        }

    }

}
</code></pre>
