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/Listing3812.java | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Master/Reference Architectures and Patterns/hjp5/examples/Listing3812.java')
| -rw-r--r-- | Master/Reference Architectures and Patterns/hjp5/examples/Listing3812.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/Listing3812.java b/Master/Reference Architectures and Patterns/hjp5/examples/Listing3812.java new file mode 100644 index 0000000..69aff2c --- /dev/null +++ b/Master/Reference Architectures and Patterns/hjp5/examples/Listing3812.java @@ -0,0 +1,64 @@ +/* Listing3812.java */
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import javax.swing.event.*;
+import javax.swing.tree.*;
+
+public class Listing3812
+extends JFrame
+{
+ public Listing3812()
+ {
+ super("JTree 2");
+ addWindowListener(new WindowClosingAdapter(true));
+ //Einfaches TreeModel bauen
+ DefaultMutableTreeNode root, child, subchild;
+ root = new DefaultMutableTreeNode("Root");
+ for (int i = 1; i <= 5; ++i) {
+ String name = "Child-" + i;
+ child = new DefaultMutableTreeNode(name);
+ root.add(child);
+ for (int j = 1; j <= 3; ++j) {
+ subchild = new DefaultMutableTreeNode(name + "-" + j);
+ child.add(subchild);
+ }
+ }
+ //JTree erzeugen und Einfachselektion aktivieren
+ JTree tree = new JTree(root);
+ TreeSelectionModel tsm = new DefaultTreeSelectionModel();
+ tsm.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
+ tree.setSelectionModel(tsm);
+ tree.setRootVisible(true);
+ //JTree einfügen
+ Container cp = getContentPane();
+ cp.add(new JScrollPane(tree), BorderLayout.CENTER);
+ //TreeSelectionListener hinzufügen
+ tree.addTreeSelectionListener(
+ new TreeSelectionListener()
+ {
+ public void valueChanged(TreeSelectionEvent event)
+ {
+ TreePath tp = event.getNewLeadSelectionPath();
+ if (tp != null) {
+ System.out.println(" Selektiert: " + tp.toString());
+ } else {
+ System.out.println(" Kein Element selektiert");
+ }
+ }
+ }
+ );
+ }
+
+ public static void main(String[] args)
+ {
+ try {
+ Listing3812 frame = new Listing3812();
+ frame.setLocation(100, 100);
+ frame.setSize(250, 200);
+ frame.setVisible(true);
+ } catch (Exception e) {
+ }
+ }
+}
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