P2 CS201 GuessingGame starter

GuessingGame.java

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

// We discussed academic honesty, so when you re-type this code, be sure to cite it in a comment!
// This is the only time you MUST cite code from me, the instructor.
public class GuessingGame {
    /** One more than the highest possible number in the game. */
    private static final int HIGH = 100;
    /** The lowest possible number in the game. */
    private static final int LOW = 0;

    /**
     * A Java program will run code in a special ``main`` method.
     * Note that Java has two types of comments: block (slash-star ... star-slash),
     * and line ("slash-slash") comments.
     * For now we ignore args, which is an array of strings that the user might have
     * passed in.
     * 
     * @param args command line arguments.
     */
    public static void main(String[] args) {

        // Create a random number generator:
        Random rand = new Random();

        // Select a secret number.
        final int secretNumber = rand.nextInt(HIGH - LOW) + LOW;
        System.out.println("Welcome to the Guessing Game.");
        System.out.println("I have selected a number from [" + LOW + "," + HIGH + ").");

        // Set the current guess to something that can't be correct.
        int guess = LOW - 1;

        // We use a Scanner to turn characters from System.in into numbers.
        Scanner scanner = new Scanner(System.in);

        while (guess != secretNumber) {
            System.out.println("What is your guess? ");

            if (!scanner.hasNextInt()) {
                String whatYouSaid = scanner.nextLine().trim();
                System.out.println("Please enter a valid number! You said '" +
                        whatYouSaid + "' but I don't understand.");
                // Continue takes us around the loop again.
                continue;
            }

            guess = scanner.nextInt();
            // Give the player a hint!
            if (guess > secretNumber) {
                System.out.println("Your guess of " + guess + " is too high.");
            } else if (guess < secretNumber) {
                System.out.println("Your guess of " + guess + " is too low.");
            }
        }

        // The only way we exit the loop is if we have won.
        System.out.println("Congratulations, you've won!");
        System.out.println("Thanks for playing!");

        // Always close resources that you open (We'll talk more about this later).
        scanner.close();
    }
}