Java by API/javax.swing/ListSelectionModel
Содержание
- 1 ListSelectionModel: getMaxSelectionIndex()
- 2 ListSelectionModel: getMinSelectionIndex()
- 3 ListSelectionModel: isSelectedIndex(int index)
- 4 ListSelectionModel: isSelectionEmpty()
- 5 ListSelectionModel: setAnchorSelectionIndex(int index)
- 6 ListSelectionModel: setLeadSelectionIndex(int index)
- 7 ListSelectionModel.SINGLE_INTERVAL_SELECTION
- 8 ListSelectionModel.SINGLE_SELECTION
ListSelectionModel: getMaxSelectionIndex()
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; class SharedListSelectionHandler implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
int firstIndex = e.getFirstIndex();
int lastIndex = e.getLastIndex();
boolean isAdjusting = e.getValueIsAdjusting();
System.out.println("Event for indexes " + firstIndex + " - " + lastIndex + "; isAdjusting is "
+ isAdjusting + "; selected indexes:");
if (lsm.isSelectionEmpty()) {
System.out.println(" <none>");
} else {
// Find out which indexes are selected.
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
for (int i = minIndex; i <= maxIndex; i++) {
if (lsm.isSelectedIndex(i)) {
System.out.println(" " + i);
}
}
}
}
} public class Main {
static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };
public static void main(String args[]) {
JFrame frame = new JFrame("Modifying Model");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[] columnNames = { "French", "Spanish", "Italian" };
String[][] tableData = { { "un", "uno", "uno" }, { "deux", "dos", "due" },
{ "trois", "tres", "tre" }, { "quatre", "cuatro", "quattro" },
{ "cinq", "cinco", "cinque" }, { "six", "seis", "sei" }, { "sept", "siete", "sette" } };
JTable table = new JTable(tableData, columnNames);
table.getSelectionModel().addListSelectionListener(new SharedListSelectionHandler());
JScrollPane scrollPane1 = new JScrollPane(table);
frame.add(scrollPane1, BorderLayout.CENTER);
frame.setSize(640, 300);
frame.setVisible(true);
}
}
</source>
ListSelectionModel: getMinSelectionIndex()
<source lang="java">
import java.awt.BorderLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.table.AbstractTableModel; import javax.swing.table.TableModel; public class MainClass extends JFrame {
public MainClass() {
super("Selection Model Test");
setSize(450, 350);
setDefaultCloseOperation(EXIT_ON_CLOSE);
TableModel tm = new AbstractTableModel() {
public int getRowCount() {
return 10;
}
public int getColumnCount() {
return 10;
}
public Object getValueAt(int r, int c) {
return "0";
}
};
final JTable jt = new JTable(tm);
JScrollPane jsp = new JScrollPane(jt);
getContentPane().add(jsp, BorderLayout.CENTER);
JPanel controlPanel, buttonPanel, columnPanel, rowPanel;
buttonPanel = new JPanel();
final JCheckBox cellBox, columnBox, rowBox;
cellBox = new JCheckBox("Cells", jt.getCellSelectionEnabled());
columnBox = new JCheckBox("Columns", jt.getColumnSelectionAllowed());
rowBox = new JCheckBox("Rows", jt.getRowSelectionAllowed());
cellBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
jt.setCellSelectionEnabled(cellBox.isSelected());
columnBox.setSelected(jt.getColumnSelectionAllowed());
rowBox.setSelected(jt.getRowSelectionAllowed());
}
});
columnBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
jt.setColumnSelectionAllowed(columnBox.isSelected());
cellBox.setSelected(jt.getCellSelectionEnabled());
}
});
rowBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
jt.setRowSelectionAllowed(rowBox.isSelected());
cellBox.setSelected(jt.getCellSelectionEnabled());
}
});
buttonPanel.add(new JLabel("Selections allowed:"));
buttonPanel.add(cellBox);
buttonPanel.add(columnBox);
buttonPanel.add(rowBox);
columnPanel = new JPanel();
ListSelectionModel csm = jt.getColumnModel().getSelectionModel();
JLabel columnCounter = new JLabel("Selected Column Indices:");
csm.addListSelectionListener(new SelectionDebugger(columnCounter, csm));
columnPanel.add(new JLabel("Selected columns:"));
columnPanel.add(columnCounter);
rowPanel = new JPanel();
ListSelectionModel rsm = jt.getSelectionModel();
JLabel rowCounter = new JLabel("Selected Row Indices:");
rsm.addListSelectionListener(new SelectionDebugger(rowCounter, rsm));
rowPanel.add(new JLabel("Selected rows:"));
rowPanel.add(rowCounter);
controlPanel = new JPanel(new GridLayout(0, 1));
controlPanel.add(buttonPanel);
controlPanel.add(columnPanel);
controlPanel.add(rowPanel);
getContentPane().add(controlPanel, BorderLayout.SOUTH);
}
public static void main(String args[]) {
MainClass se = new MainClass();
se.setVisible(true);
}
public class SelectionDebugger implements ListSelectionListener {
JLabel debugger;
ListSelectionModel model;
public SelectionDebugger(JLabel target, ListSelectionModel lsm) {
debugger = target;
model = lsm;
}
public void valueChanged(ListSelectionEvent lse) {
if (!lse.getValueIsAdjusting()) {
StringBuffer buf = new StringBuffer();
int[] selection = getSelectedIndices(model.getMinSelectionIndex(), model
.getMaxSelectionIndex());
if (selection.length == 0) {
buf.append("none");
} else {
for (int i = 0; i < selection.length - 1; i++) {
buf.append(selection[i]);
buf.append(", ");
}
buf.append(selection[selection.length - 1]);
}
debugger.setText(buf.toString());
}
}
protected int[] getSelectedIndices(int start, int stop) {
if ((start == -1) || (stop == -1)) {
return new int[0];
}
int guesses[] = new int[stop - start + 1];
int index = 0;
for (int i = start; i <= stop; i++) {
if (model.isSelectedIndex(i)) {
guesses[index++] = i;
}
}
int realthing[] = new int[index];
System.arraycopy(guesses, 0, realthing, 0, index);
return realthing;
}
}
}
</source>
ListSelectionModel: isSelectedIndex(int index)
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; class SharedListSelectionHandler implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
int firstIndex = e.getFirstIndex();
int lastIndex = e.getLastIndex();
boolean isAdjusting = e.getValueIsAdjusting();
System.out.println("Event for indexes " + firstIndex + " - " + lastIndex + "; isAdjusting is "
+ isAdjusting + "; selected indexes:");
if (lsm.isSelectionEmpty()) {
System.out.println(" <none>");
} else {
// Find out which indexes are selected.
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
for (int i = minIndex; i <= maxIndex; i++) {
if (lsm.isSelectedIndex(i)) {
System.out.println(" " + i);
}
}
}
}
} public class Main {
static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };
public static void main(String args[]) {
JFrame frame = new JFrame("Modifying Model");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[] columnNames = { "French", "Spanish", "Italian" };
String[][] tableData = { { "un", "uno", "uno" }, { "deux", "dos", "due" },
{ "trois", "tres", "tre" }, { "quatre", "cuatro", "quattro" },
{ "cinq", "cinco", "cinque" }, { "six", "seis", "sei" }, { "sept", "siete", "sette" } };
JTable table = new JTable(tableData, columnNames);
table.getSelectionModel().addListSelectionListener(new SharedListSelectionHandler());
JScrollPane scrollPane1 = new JScrollPane(table);
frame.add(scrollPane1, BorderLayout.CENTER);
frame.setSize(640, 300);
frame.setVisible(true);
}
}
</source>
ListSelectionModel: isSelectionEmpty()
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; class SharedListSelectionHandler implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
int firstIndex = e.getFirstIndex();
int lastIndex = e.getLastIndex();
boolean isAdjusting = e.getValueIsAdjusting();
System.out.println("Event for indexes " + firstIndex + " - " + lastIndex + "; isAdjusting is "
+ isAdjusting + "; selected indexes:");
if (lsm.isSelectionEmpty()) {
System.out.println(" <none>");
} else {
// Find out which indexes are selected.
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
for (int i = minIndex; i <= maxIndex; i++) {
if (lsm.isSelectedIndex(i)) {
System.out.println(" " + i);
}
}
}
}
} public class Main {
static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };
public static void main(String args[]) {
JFrame frame = new JFrame("Modifying Model");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[] columnNames = { "French", "Spanish", "Italian" };
String[][] tableData = { { "un", "uno", "uno" }, { "deux", "dos", "due" },
{ "trois", "tres", "tre" }, { "quatre", "cuatro", "quattro" },
{ "cinq", "cinco", "cinque" }, { "six", "seis", "sei" }, { "sept", "siete", "sette" } };
JTable table = new JTable(tableData, columnNames);
table.getSelectionModel().addListSelectionListener(new SharedListSelectionHandler());
JScrollPane scrollPane1 = new JScrollPane(table);
frame.add(scrollPane1, BorderLayout.CENTER);
frame.setSize(640, 300);
frame.setVisible(true);
}
}
</source>
ListSelectionModel: setAnchorSelectionIndex(int index)
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JScrollPane; public class Main {
static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };
public static void main(String args[]) {
JFrame frame = new JFrame("Modifying Model");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JList jlist = new JList(new String[]{"A","B","C"});
jlist.getSelectionModel().setAnchorSelectionIndex(0);
jlist.getSelectionModel().setLeadSelectionIndex(2);
JScrollPane scrollPane1 = new JScrollPane(jlist);
frame.add(scrollPane1, BorderLayout.CENTER);
frame.setSize(640, 300);
frame.setVisible(true);
}
}
</source>
ListSelectionModel: setLeadSelectionIndex(int index)
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JScrollPane; public class Main {
static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };
public static void main(String args[]) {
JFrame frame = new JFrame("Modifying Model");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JList jlist = new JList(new String[]{"A","B","C"});
jlist.getSelectionModel().setAnchorSelectionIndex(0);
jlist.getSelectionModel().setLeadSelectionIndex(2);
JScrollPane scrollPane1 = new JScrollPane(jlist);
frame.add(scrollPane1, BorderLayout.CENTER);
frame.setSize(640, 300);
frame.setVisible(true);
}
}
</source>
ListSelectionModel.SINGLE_INTERVAL_SELECTION
<source lang="java">
/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Sun Microsystems nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/*
* ListDataEventDemo.java requires the Java Look and Feel Graphics * Repository (jlfgr-1_0.jar). You can download this file from * http://java.sun.ru/developer/techDocs/hi/repository/ * Put it in the class path using one of the following commands * (assuming jlfgr-1_0.jar is in a subdirectory named jars): * * java -cp .;jars/jlfgr-1_0.jar ListDataEventDemo [Microsoft Windows] * java -cp .:jars/jlfgr-1_0.jar ListDataEventDemo [UNIX] */
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.Insets; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.DefaultListModel; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSplitPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.ListSelectionModel; import javax.swing.event.ListDataEvent; import javax.swing.event.ListDataListener; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; public class Main extends JPanel implements ListSelectionListener {
private JList list;
private DefaultListModel listModel;
private static final String addString = "Add";
private static final String deleteString = "Delete";
private static final String upString = "Move up";
private static final String downString = "Move down";
private JButton addButton;
private JButton deleteButton;
private JButton upButton;
private JButton downButton;
private JTextField nameField;
private JTextArea log;
static private String newline = "\n";
public Main() {
super(new BorderLayout());
// Create and populate the list model.
listModel = new DefaultListModel();
listModel.addElement("Whistler, Canada");
listModel.addElement("Jackson Hole, Wyoming");
listModel.addElement("Squaw Valley, California");
listModel.addElement("Telluride, Colorado");
listModel.addElement("Taos, New Mexico");
listModel.addElement("Snowbird, Utah");
listModel.addElement("Chamonix, France");
listModel.addElement("Banff, Canada");
listModel.addElement("Arapahoe Basin, Colorado");
listModel.addElement("Kirkwood, California");
listModel.addElement("Sun Valley, Idaho");
listModel.addListDataListener(new MyListDataListener());
// Create the list and put it in a scroll pane.
list = new JList(listModel);
list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
list.setSelectedIndex(0);
list.addListSelectionListener(this);
JScrollPane listScrollPane = new JScrollPane(list);
// Create the list-modifying buttons.
addButton = new JButton(addString);
addButton.setActionCommand(addString);
addButton.addActionListener(new AddButtonListener());
deleteButton = new JButton(deleteString);
deleteButton.setActionCommand(deleteString);
deleteButton.addActionListener(new DeleteButtonListener());
ImageIcon icon = createImageIcon("Up16");
if (icon != null) {
upButton = new JButton(icon);
upButton.setMargin(new Insets(0, 0, 0, 0));
} else {
upButton = new JButton("Move up");
}
upButton.setToolTipText("Move the currently selected list item higher.");
upButton.setActionCommand(upString);
upButton.addActionListener(new UpDownListener());
icon = createImageIcon("Down16");
if (icon != null) {
downButton = new JButton(icon);
downButton.setMargin(new Insets(0, 0, 0, 0));
} else {
downButton = new JButton("Move down");
}
downButton.setToolTipText("Move the currently selected list item lower.");
downButton.setActionCommand(downString);
downButton.addActionListener(new UpDownListener());
JPanel upDownPanel = new JPanel(new GridLayout(2, 1));
upDownPanel.add(upButton);
upDownPanel.add(downButton);
// Create the text field for entering new names.
nameField = new JTextField(15);
nameField.addActionListener(new AddButtonListener());
String name = listModel.getElementAt(list.getSelectedIndex()).toString();
nameField.setText(name);
// Create a control panel, using the default FlowLayout.
JPanel buttonPane = new JPanel();
buttonPane.add(nameField);
buttonPane.add(addButton);
buttonPane.add(deleteButton);
buttonPane.add(upDownPanel);
// Create the log for reporting list data events.
log = new JTextArea(10, 20);
JScrollPane logScrollPane = new JScrollPane(log);
// Create a split pane for the log and the list.
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,
listScrollPane, logScrollPane);
splitPane.setResizeWeight(0.5);
// Put everything together.
add(buttonPane, BorderLayout.PAGE_START);
add(splitPane, BorderLayout.CENTER);
}
class MyListDataListener implements ListDataListener {
public void contentsChanged(ListDataEvent e) {
log.append("contentsChanged: " + e.getIndex0() + ", " + e.getIndex1()
+ newline);
log.setCaretPosition(log.getDocument().getLength());
}
public void intervalAdded(ListDataEvent e) {
log.append("intervalAdded: " + e.getIndex0() + ", " + e.getIndex1()
+ newline);
log.setCaretPosition(log.getDocument().getLength());
}
public void intervalRemoved(ListDataEvent e) {
log.append("intervalRemoved: " + e.getIndex0() + ", " + e.getIndex1()
+ newline);
log.setCaretPosition(log.getDocument().getLength());
}
}
class DeleteButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
/*
* This method can be called only if there"s a valid selection, so go
* ahead and remove whatever"s selected.
*/
ListSelectionModel lsm = list.getSelectionModel();
int firstSelected = lsm.getMinSelectionIndex();
int lastSelected = lsm.getMaxSelectionIndex();
listModel.removeRange(firstSelected, lastSelected);
int size = listModel.size();
if (size == 0) {
// List is empty: disable delete, up, and down buttons.
deleteButton.setEnabled(false);
upButton.setEnabled(false);
downButton.setEnabled(false);
} else {
// Adjust the selection.
if (firstSelected == listModel.getSize()) {
// Removed item in last position.
firstSelected--;
}
list.setSelectedIndex(firstSelected);
}
}
}
/** A listener shared by the text field and add button. */
class AddButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if (nameField.getText().equals("")) {
// User didn"t type in a name...
Toolkit.getDefaultToolkit().beep();
return;
}
int index = list.getSelectedIndex();
int size = listModel.getSize();
// If no selection or if item in last position is selected,
// add the new one to end of list, and select new one.
if (index == -1 || (index + 1 == size)) {
listModel.addElement(nameField.getText());
list.setSelectedIndex(size);
// Otherwise insert the new one after the current selection,
// and select new one.
} else {
listModel.insertElementAt(nameField.getText(), index + 1);
list.setSelectedIndex(index + 1);
}
}
}
// Listen for clicks on the up and down arrow buttons.
class UpDownListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
// This method can be called only when
// there"s a valid selection,
// so go ahead and move the list item.
int moveMe = list.getSelectedIndex();
if (e.getActionCommand().equals(upString)) {
// UP ARROW BUTTON
if (moveMe != 0) {
// not already at top
swap(moveMe, moveMe - 1);
list.setSelectedIndex(moveMe - 1);
list.ensureIndexIsVisible(moveMe - 1);
}
} else {
// DOWN ARROW BUTTON
if (moveMe != listModel.getSize() - 1) {
// not already at bottom
swap(moveMe, moveMe + 1);
list.setSelectedIndex(moveMe + 1);
list.ensureIndexIsVisible(moveMe + 1);
}
}
}
}
// Swap two elements in the list.
private void swap(int a, int b) {
Object aObject = listModel.getElementAt(a);
Object bObject = listModel.getElementAt(b);
listModel.set(a, bObject);
listModel.set(b, aObject);
}
// Listener method for list selection changes.
public void valueChanged(ListSelectionEvent e) {
if (e.getValueIsAdjusting() == false) {
if (list.getSelectedIndex() == -1) {
// No selection: disable delete, up, and down buttons.
deleteButton.setEnabled(false);
upButton.setEnabled(false);
downButton.setEnabled(false);
nameField.setText("");
} else if (list.getSelectedIndices().length > 1) {
// Multiple selection: disable up and down buttons.
deleteButton.setEnabled(true);
upButton.setEnabled(false);
downButton.setEnabled(false);
} else {
// Single selection: permit all operations.
deleteButton.setEnabled(true);
upButton.setEnabled(true);
downButton.setEnabled(true);
nameField.setText(list.getSelectedValue().toString());
}
}
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String imageName) {
String imgLocation = "toolbarButtonGraphics/navigation/" + imageName
+ ".gif";
java.net.URL imageURL = Main.class.getResource(imgLocation);
if (imageURL == null) {
System.err.println("Resource not found: " + imgLocation);
return null;
} else {
return new ImageIcon(imageURL);
}
}
/**
* Create the GUI and show it. For thread safety, this method should be
* invoked from the event-dispatching thread.
*/
private static void createAndShowGUI() {
// Create and set up the window.
JFrame frame = new JFrame("ListDataEventDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
JComponent newContentPane = new Main();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Don"t let the content pane get too small.
// (Works if the Java look and feel provides
// the window decorations.)
newContentPane.setMinimumSize(new Dimension(newContentPane
.getPreferredSize().width, 100));
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
// Schedule a job for the event-dispatching thread:
// creating and showing this application"s GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
</source>
ListSelectionModel.SINGLE_SELECTION
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.table.AbstractTableModel; import javax.swing.table.TableModel; public class MainClass {
public static void main(final String args[]) {
final Object rows[][] = { { "one", "1" }, { "two", "2" },
{ "three", "3" } };
final String headers[] = { "English", "Digit" };
TableModel fixedColumnModel = new AbstractTableModel() {
public int getColumnCount() {
return 2;
}
public String getColumnName(int column) {
return headers[column];
}
public int getRowCount() {
return 3;
}
public Object getValueAt(int row, int column) {
return rows[row][column];
}
};
JFrame frame = new JFrame("Scrollless Table");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTable table = new JTable(fixedColumnModel);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
frame.add(new JScrollPane(table), BorderLayout.CENTER);
frame.setSize(300, 150);
frame.setVisible(true);
}
}
</source>
