Re: Displaying the conten

  To: comp.lang.java.gui
I've added this 'change listener' now to the code, but it seems to actvery
slowly, and sometimes doesnt act at all...

For instance I'll make an entry in one of the cells, and then press Enter,
some 10- 20 seconds later then the change is seemingly registered. Any idea
why?

The code now appears as below :-

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.event.*;

public class TestTable {
     public static void main(String args[]) {
         int rowNumber = 4;
         int columnNumber = 7;
         String[][] result = new String[rowNumber + 1][columnNumber + 1];
         result = increment(rowNumber, columnNumber);
     }

     public static String[][] increment(int rowNumber, int columnNumber) {
         // Set X,Y location
         int rowHeight = 25;
         String[][] contents = new String[rowNumber + 1][columnNumber + 1];
         JFrame frame = new JFrame("Define your [" +
(String.valueOf(rowNumber)) + ", " + (String.valueOf(columnNumber)) + "]" +
" matrix");
         JPanel bottomPanel = new JPanel();
         JButton declare = new JButton("Declare it");
         final JTable table = new JTable(rowNumber, columnNumber);

         bottomPanel.setLayout(new FlowLayout());
         table.setSelectionBackground(Color.pink);
         frame.setLocation(50, 50);
         frame.setSize(columnNumber * 100, 100 + ((rowNumber - 1) *
rowHeight));
         table.setRowHeight(rowHeight);
         frame.add(table);
         bottomPanel.add(declare, BorderLayout.SOUTH);
         frame.add(bottomPanel, BorderLayout.SOUTH);
         frame.setVisible(true);

         declare.addChangeListener(new ChangeListener(){
            public void stateChanged(ChangeEvent e) {
                System.out.println("change");
            }
        });

         declare.addActionListener(new ActionListener() {
             public void actionPerformed(ActionEvent evt) {
                 try {
                     Object str = table.getValueAt(1, 1);
                     if (str == null) {
                         System.out.println("table[0,0] = null");
                     }
                     else {
                         System.out.println(str);
                     }
                 } catch (Exception e) {
                     System.err.println("Error: " + e);
                     e.printStackTrace();
                 }
             }
         });

         return (contents);
     }
}

"Thomas A. Russ" <tar@sevak.isi.edu> wrote in message
news:ymiwsccptdy.fsf@blackcat.isi.edu...


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