New to Java

Hi there,

I've searched through the forums but to no avail, many of the topics just seemed to make me more confused and it's starting to drive me up insane! I think I could be here a fair bit in the next few weeks too having to redo assignments; Java, specifically Swing is not my friend and I feel much more like giving up. Hopefully I'm not as far as I think (though I find that hard to believe)

Anyway, this current app I'm working on is the Guessing Game
Basically, you choose a number between 1-1,000, which the computer has to guess and you eliminate responses by clicking High / Low or Correct (to end the loop)

So effectively
int min=0,max=1000;

And you effectively have to half the number of possible numbers by each click
int guess=(max+min)/2;

The error Java keeps throwing up now (when I thought I'd finally got it working, though when I removed some parts I saw I'd looped all the buttons so the app just goes mad really printing button after button.. I'm sure you know how I mean)
Cannot refer to a non-final variable guess inside an inner class defined in a different method


Anyway, here's my code so far

import javax.*;
import javax.swing.*;

import java.awt.*;
import java.awt.event.*;


public class guessingGame {
public static void main(String args[])
   {
		// Create the window
		JFrame frame = new JFrame("Guessing Game");
		frame.setVisible(true);
		frame.setSize(400,400);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JPanel panel = new JPanel();
		frame.add(panel);
	   
		// Begin loop, generate number between 0-1000
		final boolean finished=false;	
		int min=0,max=1000;
		
	   
		
		// Create the buttons
				while (!finished)
		{	
			if (max<min) 
			   {	
				JLabel cheat = new JLabel("You cheated");
				panel.add(cheat);
			   }
			
			else 
			{	
			
				JButton endButton = new JButton("Correct");
				panel.add(endButton);
				endButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
				{
					finished=true;
					}
				} 
				});	
				
				int guess=(max+min)/2;
				JLabel guessLabel = new JLabel("My guess is:" + guess);
				panel.add(guessLabel);
				
				JButton highButton = new JButton("High");
				panel.add(highButton);
				highButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
				int max=guess-1;
				JLabel answer = new JLabel ("My new guess:" + max); 
			      }
				});
				
				JButton lowButton = new JButton("Low");
				panel.add(lowButton);	
				lowButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
				int min=guess+1;
				JLabel answer = new JLabel ("My new guess:" + min); 
					}
				});
			}

   }
	   	   
}}
   

Thanks so much, please don't hesistate to ask any questions - I need to learn otherwise I'll be hopeless at Swing