diff options
| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java')
| -rw-r--r-- | Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java b/Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java new file mode 100644 index 0000000..3151b3d --- /dev/null +++ b/Master/Reference Architectures and Patterns/hjp5/examples/Listing3708.java @@ -0,0 +1,44 @@ +/* Listing3708.java */
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import javax.swing.event.*;
+
+public class Listing3708
+extends JFrame
+implements ItemListener
+{
+ public Listing3708()
+ {
+ super("JCheckBox");
+ addWindowListener(new WindowClosingAdapter(true));
+ JPanel panel = new JPanel();
+ panel.setLayout(new GridLayout(3, 1));
+ for (int i = 1; i <= 3; ++i) {
+ JCheckBox cb = new JCheckBox("Checkbox" + i, i == 2);
+ cb.addItemListener(this);
+ panel.add(cb);
+ }
+ getContentPane().add(panel, BorderLayout.CENTER);
+ }
+
+ public void itemStateChanged(ItemEvent e)
+ {
+ JCheckBox cb = (JCheckBox)e.getSource();
+ int change = e.getStateChange();
+ if (change == ItemEvent.SELECTED) {
+ System.out.println(cb.getText() + ": SELECTED");
+ } else if (change == ItemEvent.DESELECTED) {
+ System.out.println(cb.getText() + ": DESELECTED");
+ }
+ }
+
+ public static void main(String[] args)
+ {
+ Listing3708 frame = new Listing3708();
+ frame.setLocation(100, 100);
+ frame.setSize(300, 100);
+ frame.setVisible(true);
+ }
+}
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