Table, beginner stuff

[drwk]

Hi!

My problem is as follows:

import java.io.BufferedWriter;
import java.io.FileWriter;

import javax.swing.*;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.*; 

[B] public class Book implements TableModelListener{

	public Book( ){

		String [] columnNames = {"first name","last name","sport","# of years","vegetarian"};

		Object [][] data = {
				{"Mary", "Campione",
					"Snowboarding", new Integer(5), new Boolean(false)},
					{"Alison", "Huml",
						"Rowing", new Integer(3), new Boolean(true)},
						{"Kathy", "Walrath",
							"Knitting", new Integer(2), new Boolean(false)},
							{"Sharon", "Zakhour",
								"Speed reading", new Integer(20), new Boolean(true)},
								{"Philip", "Milne",
									"Pool", new Integer(10), new Boolean(false)}
		};
		//Creates the GUI
		JTable table = new JTable (data, columnNames);
		JScrollPane pane = new JScrollPane(table);
		JFrame frame = new JFrame();
		frame.add(pane);
		frame.setVisible(true);
		frame.setSize(500,500);
		//adds the listener
		table.getModel().addTableModelListener(this);
	}
	//the listener
	public void tableChanged(TableModelEvent e) {

		//just checks if it goes past this part
		System.out.println("Check");

		//Try and catch block
		try{

			FileWriter fs = new FileWriter("C:\\hej10.txt");
			BufferedWriter ws = new BufferedWriter(fs);


			for(int i = 0; i<=2; i++){ //Amount of rows
				if (i >= 1){
					System.out.println("den går igenom");
					ws.write("\r\n");
				}
				for(int j = 0; j<=3; j++){ //amount of columns
					if(j == 3){	
						//The problem with table not being found
						ws.write((String) table.getValueAt(i,j).toString());
					}
					else{
						ws.write((String) table.getValueAt(i,j)+",");
					}}
			}
			ws.close();
		}catch (Exception error){
			System.err.println("Error"+ error.getMessage());
		}

	}		

	public static void main(String[] args){
		//Creates the Book object
		new Book();

	}


}
[/B]

In need to somehow make table global or somehow accessible so that it can be written to a text file.:confused:

and yes the array part is taken from Javas tutorial JTable, and yes I'm to lazy to write the array myself :D

any help is appreciated

[hardwired]

somehow make table global or somehow accessible
Make it a member variable in class scope:

public class BookRx implements TableModelListener{
    JTable table;  // member variable

    public BookRx( ){
        ...
        //Creates the GUI
        // table is a local variable when declared here
//        JTable table = new JTable (data, columnNames);
        // instantiate the member variable
        table = new JTable (data, columnNames);
        ...