Java by API/javax.swing/JCheckBox

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JCheckBox: addActionListener(ActionListener lis)

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.KeyEvent; import javax.swing.AbstractButton; import javax.swing.ButtonModel; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass {

 public static void main(String[] a) {
   final String DESELECTED_LABEL = "Deselected";
   final String SELECTED_LABEL = "Selected";
   
   JFrame frame = new JFrame("Selecting CheckBox");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       AbstractButton abstractButton = (AbstractButton) actionEvent
           .getSource();
       boolean selected = abstractButton.getModel().isSelected();
       String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
       abstractButton.setText(newLabel);
     }
   };
   ChangeListener changeListener = new ChangeListener() {
     public void stateChanged(ChangeEvent changeEvent) {
       AbstractButton abstractButton = (AbstractButton) changeEvent
           .getSource();
       ButtonModel buttonModel = abstractButton.getModel();
       boolean armed = buttonModel.isArmed();
       boolean pressed = buttonModel.isPressed();
       boolean selected = buttonModel.isSelected();
       System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
     }
   };
   ItemListener itemListener = new ItemListener() {
     public void itemStateChanged(ItemEvent itemEvent) {
       AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
       Color foreground = abstractButton.getForeground();
       Color background = abstractButton.getBackground();
       int state = itemEvent.getStateChange();
       if (state == ItemEvent.SELECTED) {
         abstractButton.setForeground(background);
         abstractButton.setBackground(foreground);
       }
     }
   };
   checkBox.addActionListener(actionListener);
   checkBox.addChangeListener(changeListener);
   checkBox.addItemListener(itemListener);
   checkBox.setMnemonic(KeyEvent.VK_S);
   frame.add(checkBox, BorderLayout.NORTH);
   frame.setSize(300, 100);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: addChangeListener(ChangeListener lis)

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.KeyEvent; import javax.swing.AbstractButton; import javax.swing.ButtonModel; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass {

 public static void main(String[] a) {
   final String DESELECTED_LABEL = "Deselected";
   final String SELECTED_LABEL = "Selected";
   
   JFrame frame = new JFrame("Selecting CheckBox");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       AbstractButton abstractButton = (AbstractButton) actionEvent
           .getSource();
       boolean selected = abstractButton.getModel().isSelected();
       String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
       abstractButton.setText(newLabel);
     }
   };
   ChangeListener changeListener = new ChangeListener() {
     public void stateChanged(ChangeEvent changeEvent) {
       AbstractButton abstractButton = (AbstractButton) changeEvent
           .getSource();
       ButtonModel buttonModel = abstractButton.getModel();
       boolean armed = buttonModel.isArmed();
       boolean pressed = buttonModel.isPressed();
       boolean selected = buttonModel.isSelected();
       System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
     }
   };
   ItemListener itemListener = new ItemListener() {
     public void itemStateChanged(ItemEvent itemEvent) {
       AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
       Color foreground = abstractButton.getForeground();
       Color background = abstractButton.getBackground();
       int state = itemEvent.getStateChange();
       if (state == ItemEvent.SELECTED) {
         abstractButton.setForeground(background);
         abstractButton.setBackground(foreground);
       }
     }
   };
   checkBox.addActionListener(actionListener);
   checkBox.addChangeListener(changeListener);
   checkBox.addItemListener(itemListener);
   checkBox.setMnemonic(KeyEvent.VK_S);
   frame.add(checkBox, BorderLayout.NORTH);
   frame.setSize(300, 100);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: addComponentListener(ComponentListener l)

   <source lang="java">
 

import java.awt.ruponent; import java.awt.event.ruponentEvent; import java.awt.event.ruponentListener; import javax.swing.JCheckBox; import javax.swing.JFrame; public class Main {

 public static void main(String[] a) {
   JFrame frame = new JFrame();
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JCheckBox checkbox = new JCheckBox("Label visible", true);
   checkbox.addComponentListener(new ComponentListener() {
     public void componentHidden(ComponentEvent e) {
       System.out.println("componentHidden event from " + e.getComponent().getClass().getName());
     }
     public void componentMoved(ComponentEvent e) {
       Component c = e.getComponent();
       System.out.println("componentMoved event from " + c.getClass().getName()
           + "; new location: " + c.getLocation().x + ", " + c.getLocation().y);
     }
     public void componentResized(ComponentEvent e) {
       Component c = e.getComponent();
       System.out.println("componentResized event from " + c.getClass().getName() + "; new size: "
           + c.getSize().width + ", " + c.getSize().height);
     }
     public void componentShown(ComponentEvent e) {
       System.out.println("componentShown event from " + e.getComponent().getClass().getName());
     }
   });
   frame.add(checkbox, "North");
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: addItemListener(ItemListener lis)

   <source lang="java">
 

import java.awt.Color; import java.awt.ruponent; import java.awt.Graphics; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.Icon; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel implements ItemListener {

 public MainClass() {
   // Add check boxes to the content pane.
   Icon normal = new MyIcon(Color.red);
   Icon rollover = new MyIcon(Color.YELLOW);
   Icon selected = new MyIcon(Color.BLUE);
   JCheckBox cb = new JCheckBox("www.jexp.ru", normal);
   cb.setRolloverIcon(rollover);
   cb.setSelectedIcon(selected);
   cb.addItemListener(this);
   add(cb);
 }
 public void itemStateChanged(ItemEvent ie) {
   JCheckBox cb = (JCheckBox) ie.getItem();
   int state = ie.getStateChange();
   if (state == ItemEvent.SELECTED)
     System.out.println(cb.getText() + " selected");
   else
     System.out.println(cb.getText() + " cleared");
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

} class MyIcon implements Icon {

 Color cl;
 public MyIcon(Color c) {
   cl = c;
 }
 public int getIconWidth() {
   return 32;
 }
 public int getIconHeight() {
   return 32;
 }
 public void paintIcon(Component c, Graphics g, int x, int y) {
   g.setColor(cl);
   g.drawString("jexp.ru", 0, 20);
 }

}


 </source>
   
  
 
  



JCheckBox: isSelected()

   <source lang="java">
 

import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   // Get the current state of the checkbox
   boolean b = checkbox.isSelected();
   // Set the state of the checkbox to off
   checkbox.setSelected(false);
   // Set the state of the checkbox to on
   checkbox.setSelected(true);
 }

}


 </source>
   
  
 
  



JCheckBox: setBorderPaintedFlat(boolean b)

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.GridLayout; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.Border; public class MainClass {

 public static void main(String[] a) {
   JFrame frame = new JFrame("Flat CheckBox Sample");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JPanel panel = new JPanel(new GridLayout(0, 1));
   Border border = BorderFactory.createTitledBorder("Pizza Toppings");
   panel.setBorder(border);
   JCheckBox check = new JCheckBox("Anchovies");
   check.setBorderPaintedFlat(true);
   panel.add(check);
   check = new JCheckBox("Garlic");
   panel.add(check);
   check = new JCheckBox("Onions");
   check.setBorderPaintedFlat(true);
   panel.add(check);
   check = new JCheckBox("Pepperoni");
   panel.add(check);
   check = new JCheckBox("Spinach");
   check.setBorderPaintedFlat(true);
   panel.add(check);
   frame.add(panel, BorderLayout.CENTER);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: setDisabledIcon(Icon disabledIcon)

   <source lang="java">
 

import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   // Set the unselected state icon
   Icon unselDisIcon = new ImageIcon("nosel-dis-icon.gif");
   checkbox.setDisabledIcon(unselDisIcon);
   // Set the selected state icon
   Icon selDisIcon = new ImageIcon("sel-dis-icon.gif");
   checkbox.setDisabledSelectedIcon(selDisIcon);
 }

}


 </source>
   
  
 
  



JCheckBox: setDisabledSelectedIcon(Icon disabledSelectedIcon)

   <source lang="java">
 

import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   // Set the unselected state icon
   Icon unselDisIcon = new ImageIcon("nosel-dis-icon.gif");
   checkbox.setDisabledIcon(unselDisIcon);
   // Set the selected state icon
   Icon selDisIcon = new ImageIcon("sel-dis-icon.gif");
   checkbox.setDisabledSelectedIcon(selDisIcon);
 }

}


 </source>
   
  
 
  



JCheckBox: setEnabled(boolean b)

   <source lang="java">
 

import java.awt.FlowLayout; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.JCheckBox; import javax.swing.JFrame; public class Main implements ItemListener {

 JCheckBox jcbControl = new JCheckBox("Translate");
 JCheckBox jcbOption1 = new JCheckBox("A");
 JCheckBox jcbOption2 = new JCheckBox("B");
 JCheckBox jcbOption3 = new JCheckBox("C");
 Main() {
   JFrame jfrm = new JFrame("Check Box Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(300, 200);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   jcbOption1.setEnabled(false);
   jcbOption2.setEnabled(false);
   jcbOption3.setEnabled(false);
   jcbControl.addItemListener(new ItemListener() {
     public void itemStateChanged(ItemEvent ie) {
       if (jcbControl.isSelected()) {
         jcbOption1.setEnabled(true);
         jcbOption2.setEnabled(true);
         jcbOption3.setEnabled(true);
         System.out.println("enabled.");
       } else {
         jcbOption1.setEnabled(false);
         jcbOption2.setEnabled(false);
         jcbOption3.setEnabled(false);
         System.out.println("disabled.");
       }
     }
   });
   jcbOption1.addItemListener(this);
   jcbOption2.addItemListener(this);
   jcbOption3.addItemListener(this);
   jfrm.add(jcbControl);
   jfrm.add(jcbOption1);
   jfrm.add(jcbOption2);
   jfrm.add(jcbOption3);
   jfrm.setVisible(true);
 }
 public void itemStateChanged(ItemEvent ie) {
   JCheckBox cb = (JCheckBox) ie.getItem();
   if (ie.getStateChange() == ItemEvent.SELECTED)
     System.out.println(cb.getText() + " selected.");
   else
     System.out.println(cb.getText() + " cleared.");
   if (jcbOption1.isSelected())
     System.out.println("1");
   else if (jcbOption2.isSelected())
     System.out.println("2");
   else if (jcbOption3.isSelected())
     System.out.println("3");
   else
     System.out.println("None");
 }
 public static void main(String args[]) {
   new Main();
 }

}


 </source>
   
  
 
  



JCheckBox: setIcon(Icon defaultIcon)

   <source lang="java">
 

import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   // Set the unselected state icon
   Icon unselIcon = new ImageIcon("nosel-icon.gif");
   checkbox.setIcon(unselIcon);
   // Set the selected state icon
   Icon selIcon = new ImageIcon("sel-icon.gif");
   checkbox.setSelectedIcon(selIcon);
 }

}


 </source>
   
  
 
  



JCheckBox: setMnemonic(int mnemonic)

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.KeyEvent; import javax.swing.AbstractButton; import javax.swing.ButtonModel; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass {

 public static void main(String[] a) {
   final String DESELECTED_LABEL = "Deselected";
   final String SELECTED_LABEL = "Selected";
   
   JFrame frame = new JFrame("Selecting CheckBox");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       AbstractButton abstractButton = (AbstractButton) actionEvent
           .getSource();
       boolean selected = abstractButton.getModel().isSelected();
       String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
       abstractButton.setText(newLabel);
     }
   };
   ChangeListener changeListener = new ChangeListener() {
     public void stateChanged(ChangeEvent changeEvent) {
       AbstractButton abstractButton = (AbstractButton) changeEvent
           .getSource();
       ButtonModel buttonModel = abstractButton.getModel();
       boolean armed = buttonModel.isArmed();
       boolean pressed = buttonModel.isPressed();
       boolean selected = buttonModel.isSelected();
       System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
     }
   };
   ItemListener itemListener = new ItemListener() {
     public void itemStateChanged(ItemEvent itemEvent) {
       AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
       Color foreground = abstractButton.getForeground();
       Color background = abstractButton.getBackground();
       int state = itemEvent.getStateChange();
       if (state == ItemEvent.SELECTED) {
         abstractButton.setForeground(background);
         abstractButton.setBackground(foreground);
       }
     }
   };
   checkBox.addActionListener(actionListener);
   checkBox.addChangeListener(changeListener);
   checkBox.addItemListener(itemListener);
   checkBox.setMnemonic(KeyEvent.VK_S);
   frame.add(checkBox, BorderLayout.NORTH);
   frame.setSize(300, 100);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: setPressedIcon(Icon pressedIcon)

   <source lang="java">
 

import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   Icon pressedIcon = new ImageIcon("pres-icon.gif");
   checkbox.setPressedIcon(pressedIcon);
 }

}


 </source>
   
  
 
  



JCheckBox: setRolloverIcon(Icon i)

   <source lang="java">
 

import java.awt.Color; import java.awt.ruponent; import java.awt.Graphics; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.Icon; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel implements ItemListener {

 public MainClass() {
   // Add check boxes to the content pane.
   Icon normal = new MyIcon(Color.red);
   Icon rollover = new MyIcon(Color.YELLOW);
   Icon selected = new MyIcon(Color.BLUE);
   JCheckBox cb = new JCheckBox("www.jexp.ru", normal);
   cb.setRolloverIcon(rollover);
   cb.setSelectedIcon(selected);
   cb.addItemListener(this);
   add(cb);
 }
 public void itemStateChanged(ItemEvent ie) {
   JCheckBox cb = (JCheckBox) ie.getItem();
   int state = ie.getStateChange();
   if (state == ItemEvent.SELECTED)
     System.out.println(cb.getText() + " selected");
   else
     System.out.println(cb.getText() + " cleared");
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

} class MyIcon implements Icon {

 Color cl;
 public MyIcon(Color c) {
   cl = c;
 }
 public int getIconWidth() {
   return 32;
 }
 public int getIconHeight() {
   return 32;
 }
 public void paintIcon(Component c, Graphics g, int x, int y) {
   g.setColor(cl);
   g.drawString("jexp.ru", 0, 20);
 }

}


 </source>
   
  
 
  



JCheckBox: setRolloverSelectedIcon(Icon rolloverSelectedIcon)

   <source lang="java">
 

import java.awt.FlowLayout; import javax.swing.ImageIcon; import javax.swing.JCheckBox; import javax.swing.JFrame; public class Main extends JFrame {

 public Main() {
   setSize(300, 300);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   setLayout(new FlowLayout(FlowLayout.LEFT));
   JCheckBox checkBox = new JCheckBox("Check me!");
   checkBox.setSelected(true);
   // Set default icon for checkbox
   checkBox.setIcon(new ImageIcon("icon.png"));
   // Set selected icon when checkbox state is selected
   checkBox.setSelectedIcon(new ImageIcon("selectedIcon.png"));
   // Set disabled icon for checkbox
   checkBox.setDisabledIcon(new ImageIcon("disabledIcon.png"));
   // Set disabled-selected icon for checkbox
   checkBox.setDisabledSelectedIcon(new ImageIcon("disabledSelectedIcon.png"));
   // Set checkbox icon when checkbox is pressed
   checkBox.setPressedIcon(new ImageIcon("pressedIcon.png"));
   // Set icon when a mouse is over the checkbox
   checkBox.setRolloverIcon(new ImageIcon("rolloverIcon.png"));
   // Set icon when a mouse is over a selected checkbox
   checkBox.setRolloverSelectedIcon(new ImageIcon("rolloverSelectedIcon.png"));
   getContentPane().add(checkBox);
 }
 public static void main(String[] args) {
   new Main().setVisible(true);
 }

}


 </source>
   
  
 
  



JCheckBox: setSelected(boolean b)

   <source lang="java">
 

import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
   // Get the current state of the checkbox
   boolean b = checkbox.isSelected();
   // Set the state of the checkbox to off
   checkbox.setSelected(false);
   // Set the state of the checkbox to on
   checkbox.setSelected(true);
 }

}


 </source>
   
  
 
  



JCheckBox: setSelectedIcon(Icon i)

   <source lang="java">
 

import java.awt.Color; import java.awt.ruponent; import java.awt.Graphics; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.Icon; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel implements ItemListener {

 public MainClass() {
   // Add check boxes to the content pane.
   Icon normal = new MyIcon(Color.red);
   Icon rollover = new MyIcon(Color.YELLOW);
   Icon selected = new MyIcon(Color.BLUE);
   JCheckBox cb = new JCheckBox("www.jexp.ru", normal);
   cb.setRolloverIcon(rollover);
   cb.setSelectedIcon(selected);
   cb.addItemListener(this);
   add(cb);
 }
 public void itemStateChanged(ItemEvent ie) {
   JCheckBox cb = (JCheckBox) ie.getItem();
   int state = ie.getStateChange();
   if (state == ItemEvent.SELECTED)
     System.out.println(cb.getText() + " selected");
   else
     System.out.println(cb.getText() + " cleared");
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

} class MyIcon implements Icon {

 Color cl;
 public MyIcon(Color c) {
   cl = c;
 }
 public int getIconWidth() {
   return 32;
 }
 public int getIconHeight() {
   return 32;
 }
 public void paintIcon(Component c, Graphics g, int x, int y) {
   g.setColor(cl);
   g.drawString("jexp.ru", 0, 20);
 }

}


 </source>
   
  
 
  



JCheckBox: setText(String text) (HTML)

   <source lang="java">
 

import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   JCheckBox checkbox = new JCheckBox();
String label = "<html>
<img src=file:" + "icon.gif" + "/>"
       // Retrieve the current label text
+ checkbox.getText() + "
</html>";
   // Add the icon
   checkbox.setText(label);
 }

}


 </source>
   
  
 
  



JCheckBox: setToolTipText(String text)

   <source lang="java">
 

import java.awt.Dimension; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.EtchedBorder; import javax.swing.border.TitledBorder; public class Main extends JPanel {

 public Main() {
   JCheckBox m_chkBold = new JCheckBox("Bold");
   m_chkBold.setMnemonic("b");
   m_chkBold.setToolTipText("Bold font");
   add(m_chkBold);
   setBorder(new TitledBorder(new EtchedBorder(), "Effects"));
   JCheckBox m_chkItalic = new JCheckBox("Italic");
   m_chkItalic.setMnemonic("i");
   m_chkItalic.setToolTipText("Italic font");
   add(m_chkItalic);
   JCheckBox m_chkUnderline = new JCheckBox("Underline");
   m_chkUnderline.setMnemonic("u");
   m_chkUnderline.setToolTipText("Underline font");
   add(m_chkUnderline);
   JCheckBox m_chkStrikethrough = new JCheckBox("Strikethrough");
   m_chkStrikethrough.setMnemonic("r");
   m_chkStrikethrough.setToolTipText("Strikethrough font");
   add(m_chkStrikethrough);
   JCheckBox m_chkSubscript = new JCheckBox("Subscript");
   m_chkSubscript.setMnemonic("t");
   m_chkSubscript.setToolTipText("Subscript font");
   add(m_chkSubscript);
   JCheckBox m_chkSuperscript = new JCheckBox("Superscript");
   m_chkSuperscript.setMnemonic("p");
   m_chkSuperscript.setToolTipText("Superscript font");
   add(m_chkSuperscript);
 }
 public static void main(String[] a) {
   JFrame f = new JFrame();
   f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   f.add(new Main());
   f.pack();
   f.setSize(new Dimension(300, 200));
   f.setVisible(true);
 }

}


 </source>
   
  
 
  



new JCheckBox(Action a)

   <source lang="java">
 

import java.awt.event.ActionEvent; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JCheckBox; public class Main {

 public static void main(String[] argv) throws Exception {
   Action action = new AbstractAction("CheckBox Label") {
     // called when the button is pressed
     public void actionPerformed(ActionEvent evt) {
       JCheckBox cb = (JCheckBox) evt.getSource();
       // Determine status
       boolean isSel = cb.isSelected();
       if (isSel) {
         // selected
       } else {
         // deselected
       }
     }
   };
   // Create the checkbox from the action
   JCheckBox checkBox = new JCheckBox(action);
 }

}


 </source>
   
  
 
  



new JCheckBox(String text)

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.Container; import java.awt.GridLayout; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.Border; public class Main {

 public static void main(String args[]) {
   String title = (args.length == 0 ? "CheckBox Sample" : args[0]);
   JFrame frame = new JFrame(title);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JPanel panel = new JPanel(new GridLayout(0, 1));
   Border border = BorderFactory.createTitledBorder("Pizza Toppings");
   panel.setBorder(border);
   JCheckBox check = new JCheckBox("Anchovies");
   panel.add(check);
   check = new JCheckBox("Garlic");
   panel.add(check);
   check = new JCheckBox("Onions");
   panel.add(check);
   check = new JCheckBox("Pepperoni");
   panel.add(check);
   check = new JCheckBox("Spinach");
   panel.add(check);
   JButton button = new JButton("Submit");
   Container contentPane = frame.getContentPane();
   contentPane.add(panel, BorderLayout.CENTER);
   contentPane.add(button, BorderLayout.SOUTH);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



new JCheckBox(String text, boolean selected)

   <source lang="java">
 

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JCheckBox; import javax.swing.JFrame; public class Main extends JFrame implements ActionListener {

 public Main() {
   JCheckBox checkbox = new JCheckBox("Show Title", true);
   checkbox.addActionListener(this);
   add(checkbox);
   setSize(280, 200);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   setVisible(true);
 }
 public static void main(String[] args) {
   new Main();
 }
 public void actionPerformed(ActionEvent e) {
   if (this.getTitle() == "") {
     this.setTitle("Checkbox example");
   } else {
     this.setTitle("");
   }
 }

}


 </source>
   
  
 
  



new JCheckBox(String text, Icon normal)

   <source lang="java">
 

import java.awt.Color; import java.awt.ruponent; import java.awt.Graphics; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.Icon; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel implements ItemListener {

 public MainClass() {
   // Add check boxes to the content pane.
   Icon normal = new MyIcon(Color.red);
   Icon rollover = new MyIcon(Color.YELLOW);
   Icon selected = new MyIcon(Color.BLUE);
   JCheckBox cb = new JCheckBox("www.jexp.ru", normal);
   cb.setRolloverIcon(rollover);
   cb.setSelectedIcon(selected);
   cb.addItemListener(this);
   add(cb);
 }
 public void itemStateChanged(ItemEvent ie) {
   JCheckBox cb = (JCheckBox) ie.getItem();
   int state = ie.getStateChange();
   if (state == ItemEvent.SELECTED)
     System.out.println(cb.getText() + " selected");
   else
     System.out.println(cb.getText() + " cleared");
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

} class MyIcon implements Icon {

 Color cl;
 public MyIcon(Color c) {
   cl = c;
 }
 public int getIconWidth() {
   return 32;
 }
 public int getIconHeight() {
   return 32;
 }
 public void paintIcon(Component c, Graphics g, int x, int y) {
   g.setColor(cl);
   g.drawString("jexp.ru", 0, 20);
 }

}


 </source>