MindReaderApplet Applet

The SmartGuesser API

public class SmartGuesser
extends java.lang.Object

SmartGuesser is a Heads/Tails Guesser that uses some basic AI. It tally's the previous four guesses to guess the next user response Based on Nifty Assignment by Raja Sooriamurthi, which itself is based on work by Gregory Rawlins, both at Indiana U. Bloomington

Version:

21 Oct 2007

Author:

Chris Thiel, OFMCap

Field Summary
java.lang.String	HEADS
java.lang.String	TAILS

 

Constructor Summary
SmartGuesser()           Constructor for objects of class HTCounter

 

Method Summary
int	getHeadCount()           number of head given the same combination of the last 4 user choices
int	getTailCount()           number of tails given the same combination of the last 4 user choices
java.lang.String	makeGuess()           sends a "h" or a "t" as the prediction of the next user guess
void	updateHistory(java.lang.String guess)           record the last choice with the appropriate history

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Minder Read Console API

public class MindReaderApp
extends java.lang.Object

Field Summary
static int	myScore
static double	percentCorrect
static int	userScore

 

Constructor Summary
MindReaderApp()

 

Method Summary
static java.lang.String	getUserChoice()           keep promting user until they type either an "h" or a "t"
static void	init()           initialize values
static void	main(java.lang.String[] args)

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

myScore

public static int myScore

percentCorrect

public static double percentCorrect

userScore

public static int userScore

MindReaderApp.java

        
        
/**
 * MindReader Console Driver
 * 
 * Makes a Prediction...Asks for Head/Tails. 
 * Reveals if correctly predicted and keeps score
 * 
 * Based on Nifty Assignment by Raja Sooriamurthi, which itself
 * is based on work by Gregory Rawlins, both at Indiana U.
 * 
 * @author Chris Thiel, OFMCap
 * @version 21 Oct 2007
 */
import java.util.Scanner;
public class MindReaderApp
{
    // instance variables - replace the example below with your own
    public static int userScore;
    public static int myScore;
    public static double percentCorrect;
    private static String choice;
    private static String prediction;
    private static SmartGuesser hal;
    private static Scanner keyboard;
    
    /**
     * initialize values
     */
    public static void init()
    {
        // initialise instance variables
        hal = new SmartGuesser();
        userScore = 0;
        myScore =0;
        choice="";
        keyboard=new Scanner(System.in);
        System.out.println("MindReader:  I will try to guess if you say 'heads' or 'tails'");
        System.out.println("You get a point if I'm wrong, I get a point if I'm right");
        System.out.println("First to score 25 wins");
    }
    /**
     * keep promting user until they type either an "h" or a "t"
     * @return either an "h" or a "t"
     */
    public static String getUserChoice()
    {
        String choice="";
        do
        {
            System.out.println("I have predicted your choice");
            System.out.print("What is your choice [h/t]: ");
            choice = keyboard.nextLine();
        } while (?????????????????????); while the user refuses to type a "h" or a "t"
         return choice;
    }
    public static void main (String[] args)
    {
        init();
        
        while (???????????????????????) //while no one reached 25 yet
        {
            prediction=hal.makeGuess();   
            System.out.println("I have predicted your choice");
            System.out.print("What is your choice [h/t]: ");
            choice=getUserChoice();
            System.out.println("You guessed "+choice+
                             "--I predicted you would say "+prediction);
            if (choice.equals(prediction)) myScore++; else userScore++;
            hal.updateHistory(choice);
            System.out.println("Score:   You:"+userScore+"  Me: "+myScore);
        }
        if (myScore>userScore) System.out.println("I WIN"); 
          else System.out.println("YOU WIN");
    }

    
}