Java game program

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

public class game
{
    public static void main(String[] args)
    {

        Scanner kb = new Scanner(System.in);


        Random rand = new Random();
        int randomNumber = rand.nextInt(101);

        System.out.println("Let's play a game");
        System.out.println("I'll pick a number between between 1 and 100, and");
        System.out.println("you'll try to guess the number in at most 10 attempts.");
        System.out.println();


        boolean validInput;
        int userNumber = 0;

        //Print layout
        System.out.println("Tries");
        System.out.println("-----");

        //Integer check & User prompt
        do
        {
            validInput = true;

            System.out.print("  1\tWhat is your first guess? ");

            if(! kb.hasNextInt())
                {
                    System.out.println("Error: Please enter an integer");
                    kb.nextLine();
                    validInput = false;
                }
                else
                {
                    userNumber = kb.nextInt();
                    if( userNumber < 0)
                    {
                        System.out.println("Error: Please enter a positive number:");
                        validInput = false;
                    }
                }


        }while (validInput == false);


        for (int counter = 2; counter <= 11; counter++){

            if(counter == 11){
                System.out.println();
                System.out.println("Sorry, you didn't get the number in 10 guesses.");
                System.out.println("You lose. My number was " + randomNumber);
                System.out.println();
                break;
            }

            if (userNumber < randomNumber) {
                System.out.print("  " + counter + "\tThat's too low, guess again: ");

                userNumber = kb.nextInt();
            }


             else if (userNumber > randomNumber) {
                System.out.print("  " + counter + "\tThat's too high, guess again: ");
                userNumber = kb.nextInt();
            }


            else if (userNumber == randomNumber) {
                System.out.println();
                System.out.println("You got it in " + counter + " guesses! My number was " + randomNumber);
                System.out.println();
                System.out.println();
                System.out.println();
                break;



            }
        }







}
    }


# ======================================================================
# Stolen from http://pastebin.com/WAZNvs9q (GUEST OCT 19TH, 2012)
# Check out http://www.ShadowGriefing.tk/
# ======================================================================