Problems with JLabel 2

[geork]

hi again!
thanks for your last advice, but when i do:
JLabel score = new JLabel((new Integer(num)).toString());
int num = 5;
it tells me "illegal forward reference"
i will give you the whole program if it is soemthing to do with soemthing elswhere:
import static java.lang.System.out;
import javax.swing.*;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
class GameScreen1 extends JFrame implements ActionListener{
JLabel label8 = new JLabel("hi! this is your score!");
JLabel label9 = new JLabel("feel free to look at your score any time");
JLabel score = new JLabel((new Integer(num)).toString());
JButton l = new JButton("ok");
int num = 5;
public GameScreen1(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE) ;
setLayout(new FlowLayout()) ;
add(label8);
add(label9);
add(score);
score.setEnabled(false);
add(l);
l.addActionListener(this);
pack();
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
l.setEnabled(false);
new GameChoose();
}
}
my main method is in another class
also, as a after note, how can you add 1 to score from another class whenit doesn't allow you to do ++ or +1 etc?
i'd be very gratefull if soem1 could help me

[geork]

to be specific i typed:
class Success extends GameScreen1 {
String setText(){
return score +1;
}
}
and it said i wasn't allowed to use a simple +1, what should i do?

[tim]

Hello geork

To use anything in Java, you must declare it before you use it. I modified your code and it works now:

Code:

import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;
import java.awt.event.*;

public class GameScreen1 extends JFrame implements ActionListener{
	protected int num = 5; // I moved this above the definition of the score JLabel.
	protected JLabel label8 = new JLabel("hi! this is your score!");
	protected JLabel label9 = new JLabel("feel free to look at your score any time");
	protected JLabel score = new JLabel((new Integer(num)).toString());
	protected JButton l = new JButton("ok");

	public GameScreen1(){
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE) ;
		setLayout(new FlowLayout()) ;
		add(label8);
		add(label9);
		add(score);
		score.setEnabled(false);
		add(l);
		l.addActionListener(this);
		pack();
		setVisible(true);
	}
	public void actionPerformed(ActionEvent e) {
		l.setEnabled(false);
		// I removed the "new GameChoose();" since I don't have that class
	}
}

And using the above code:

Quote:

Originally Posted by geork

to be specific i typed:

Code:

class Success extends GameScreen1 {
	String setText(){
		return score +1;
	}
}

and it said i wasn't allowed to use a simple +1, what should i do?

Score is a JLabel object and not an integer, so you cannot add integer values to it. However, num is an integer, change that and then update the JLabel. Also, a sub class cannot be less accessible than its parent.

Code:

public class Success extends GameScreen1 {
	public void incrementScore(){
		this.num += 1;
		updateLabel();
	}
	protected void updateLabel(){
		score.setText(new Integer(num)).toString());
	}
}

I'm not sure what you are trying to do, but I can help with the Java. Also, please use code tags when you post your code. To use code tags:
[ CODE] //My code here [ /CODE], but without spaces in the tags. Please read the FAQ.

I hope this helps.