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);
+  }
+}
+\ No newline at end of file