Hi everybody,
I'm quite the newbie to Java and this is my first post on this forum.
The question i have is actually for a homework project (a kind of PacMan game).
the code creates a button array of rows*columns buttons that should each have an action listener attached. by clicking a button, a block should be placed in a grid. My problem is that i can't access the value (row, column) of the button within putBlockListener.

This is my code, and i receive an error at line 58 where it says
TwoWindowsMarc.aGrid.block(MonsterBlocks.row, MonsterBlocks.col);
cannot find symbol

package FirstMonster;

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

public class MonsterBlocks extends JFrame {

   private MonsterBlocks(int row, int col)
    {
        JFrame buttonFrame = new JFrame("build Buttons");
        buttonFrame.setLayout(new GridLayout(row,col, 1, 1));
        buttonFrame.setLocation(500,500);
        buttonFrame.setSize(row*34,col*25);
        buttonFrame.setVisible(true); 
        
        JButton[][] blockButton = new JButton[row][col];

        int r = 0;
        int c = 0;
        while (r < row)
        {
            while (c < col)
            {
                if(TwoWindowsMarc.aGrid.rectangle[r][c] == TwoWindowsMarc.aGrid.blockChar)
                {
                    blockButton[r][c]=new JButton("#");
                    blockButton[r][c].setBackground(Color.red);
                }
                else if(TwoWindowsMarc.aGrid.rectangle[r][c] == TwoWindowsMarc.aGrid.thingHereChar)
                {
                    blockButton[r][c]=new JButton("O");
                    blockButton[r][c].setBackground(Color.ORANGE);
                }
                else
                    blockButton[r][c]=new JButton(".");

                blockButton[r][c].setSize(10,10);
                blockButton[r][c].setFont(new Font("Sans Serif", 1, 8));
                blockButton[r][c].setMargin(new Insets(1, 1, 1, 1));
                buttonFrame.add(blockButton[r][c]);

                putBlockListener putBlocksListen= new putBlockListener( );
                blockButton[r][c].addActionListener(putBlocksListen);
                c++;
            }
            c = 0;
            r++;
        }
    }

class putBlockListener implements ActionListener
{
    // when the Build Grid button is clicked to this...
    public void actionPerformed(ActionEvent e )
    {
       TwoWindowsMarc.aGrid.block(MonsterBlocks.row, MonsterBlocks.col);                  //this is were i get the error
       TwoWindowsMarc.aGrid.updateState( );
    }
}

} //end of gridListener

Any help would be greatly appreciated!

Alice

Hey,
Only partial code is here so definitive answer is questionable. However it appears that what is "missing" are MonsterBlocks class variables, ie. symbols, row and int.

Hope this helps,
se52