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<TITLE>Creating a JCheckbox Component
(Java Developers Almanac Example)
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<META CONTENT="Patrick Chan" NAME="AUTHOR">
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<B><A HREF="../javax.swing/pkg.html#JCheckBox">JCheckBox</A></B><font color="#666666" SIZE="-2">
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<h3>
e756.
Creating a JCheckbox Component</h3>
By default, the state of the checkbox is off; to change the state, see
<a href="../javax.swing/checkbox_SetState.html" class="eglink"><font size="-1"><b>e757</b> Getting and Setting the State of a JCheckbox Component</font></a>. Also by default, the
checkbox is left-justified and vertically centered. The methods to
control the text alignment are identical to those of a <code>JButton</code>;
see <a href="../javax.swing/button_SetAlign.html" class="eglink"><font size="-1"><b>e752</b> Moving the Label/Icon Pair in a JButton Component</font></a>.
<pre>
// Create an action
Action action = new AbstractAction(<font color="#0066ff"><i>"CheckBox Label"</i></font>) {
// This method is called when the button is pressed
public void actionPerformed(ActionEvent evt) {
// Perform action
JCheckBox cb = (JCheckBox)evt.getSource();
// Determine status
boolean isSel = cb.isSelected();
if (isSel) {
// The checkbox is now selected
} else {
// The checkbox is now deselected
}
}
};
// Create the checkbox
JCheckBox checkBox = new JCheckBox(action);
</pre>
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Related Examples
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e757. <a class="eglink" href="checkbox_SetState.html?l=rel">
Getting and Setting the State of a JCheckbox Component
</a>
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e758. <a class="eglink" href="checkbox_AddIcon.html?l=rel">
Adding an Icon to the Label of a JCheckBox Component
</a>
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e759. <a class="eglink" href="checkbox_CustIcon.html?l=rel">
Customizing the Icons in a JCheckBox Component
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See also:
<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#Actions">
Actions
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#JButton">
JButton
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#JComboBox">
JComboBox
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#JDesktop%20and%20JInternalFrame">
JDesktop and JInternalFrame
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JFrame, JWindow, JDialog
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JLabel
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JList
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JProgressBar
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#JRadioButton">
JRadioButton
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JScrollPane
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JSlider
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JSpinner
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JSplitPane
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JToolBar
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#Keystrokes%20and%20Input%20Maps">
Keystrokes and Input Maps
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#Layout">
Layout
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Look and Feel
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Menus
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Progress Monitor
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#The%20Screen">
The Screen
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<a class="eglink" href="/egs/javax.swing/pkg.html?l=rel#Tool%20Tips">
Tool Tips
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UI Default Values
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