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It looks like your frame is to small to render the table.
Reynold DeMarco Jr
www.reynolddemarcojr.com
- -----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java
Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
Liu,
Leo Huaizhen
Sent: Thursday, January 11, 2001 1:23 PM
To: [EMAIL PROTECTED]
Subject: Problem of Adding JTable
Frustrated. I am testing to add JTable to a swing application. I can
add
test box onto it but
not Jtable. I attached the source code here, no compiling error but
table
not showing up when run it.
please help.
Leo
==================
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
public class SwingWin extends JFrame {
public static int WIDTH = 300;
public static int HEIGHT = 300;
public static String TITLE = "SwingWin";
Container frameContainer;
// Swing components
JTextField textField = new JTextField(50);
Object[][] data =
{
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Mark", "Andrews",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new
Boolean(false)}
};
String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};
JTable table = new JTable(data, columnNames);
//table.setPreferredScrollableViewportSize(new Dimension(500,
200));
JMenuBar menuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem fileNew = new JMenuItem("New");
JMenuItem fileOpen = new JMenuItem("Open");
JMenuItem fileSave = new JMenuItem("Save");
JMenuItem fileExit = new JMenuItem("Exit");
JMenu editMenu = new JMenu("Edit");
JMenuItem editCut = new JMenuItem("Cut");
JMenuItem editCopy = new JMenuItem("Copy");
JMenuItem editPaste = new JMenuItem("Paste");
JMenu specialMenu = new JMenu("Special");
JCheckBoxMenuItem specialCheck1 = new JCheckBoxMenuItem("Check 1");
JCheckBoxMenuItem specialCheck2 = new JCheckBoxMenuItem("Check
2",true);
JSeparator separator = new JSeparator();
JRadioButtonMenuItem specialRadio1 = new JRadioButtonMenuItem("Radio
1");
JRadioButtonMenuItem specialRadio2 = new JRadioButtonMenuItem("Radio
2");
ButtonGroup buttonGroup = new ButtonGroup();
public SwingWin() {
super(TITLE);
buildGUI();
setupEventHandlers();
setSize(WIDTH,HEIGHT);
show();
}
void buildGUI() {
setupMenuBar();
layoutComponents();
}
void setupMenuBar() {
fileMenu.add(fileNew);
fileMenu.add(fileOpen);
fileMenu.add(fileSave);
fileMenu.add(fileExit);
editMenu.add(editCut);
editMenu.add(editCopy);
editMenu.add(editPaste);
specialMenu.add(specialCheck1);
specialMenu.add(specialCheck2);
specialMenu.add(separator);
buttonGroup.add(specialRadio1);
buttonGroup.add(specialRadio2);
specialMenu.add(specialRadio1);
specialMenu.add(specialRadio2);
menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(specialMenu);
setJMenuBar(menuBar);
}
public void layoutComponents() {
frameContainer = getContentPane();
frameContainer.setLayout(null);
textField.setBounds(100,100,100,20);
frameContainer.add(textField); //ok here
frameContainer.add(table); //add table here, but doesn't
work////////////////////////////
}
void setupEventHandlers() {
addWindowListener(new WindowHandler());
fileNew.addActionListener(new MenuItemHandler());
fileOpen.addActionListener(new MenuItemHandler());
fileSave.addActionListener(new MenuItemHandler());
fileExit.addActionListener(new MenuItemHandler());
editCut.addActionListener(new MenuItemHandler());
editCopy.addActionListener(new MenuItemHandler());
editPaste.addActionListener(new MenuItemHandler());
specialCheck1.addItemListener(new ItemHandler());
specialCheck2.addItemListener(new ItemHandler());
specialRadio1.addItemListener(new ItemHandler());
specialRadio2.addItemListener(new ItemHandler());
}
public static void main(String[] args) {
SwingWin app = new SwingWin();
}
public class WindowHandler extends WindowAdapter {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
}
public class MenuItemHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
String cmd = e.getActionCommand();
if(cmd.equals("Exit")) System.exit(0);
else textField.setText(cmd);
}
}
public class ItemHandler implements ItemListener {
public void itemStateChanged(ItemEvent e) {
AbstractButton button = (AbstractButton) e.getItem();
String label = button.getText();
if(button.isSelected()) label += " true";
else label += " false";
textField.setText(label);
}
}
}
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