Source Code : Only Text Tree Example

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Only Text Tree Example

// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1.1beta2) */


import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.plaf.basic.BasicTreeUI;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

/**
 * @version 1.0 04/16/99
 */
public class OnlyTextTreeExample extends JFrame {
  public OnlyTextTreeExample() {
    super("OnlyTextTreeExample");
    String[] strs = { "swing", // 0
        "platf", // 1
        "basic", // 2
        "metal", // 3
        "JTree" }; // 4

    DefaultMutableTreeNode[] nodes = new DefaultMutableTreeNode[strs.length];
    for (int i = 0; i < strs.length; i++) {
      nodes[i] = new DefaultMutableTreeNode(strs[i]);
    }
    nodes[0].add(nodes[1]);
    nodes[1].add(nodes[2]);
    nodes[1].add(nodes[3]);
    nodes[0].add(nodes[4]);
    JTree tree = new JTree(nodes[0]);
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree
        .getCellRenderer();
    renderer.setOpenIcon(null);
    renderer.setClosedIcon(null);
    renderer.setLeafIcon(null);
    BasicTreeUI ui = (BasicTreeUI) tree.getUI();
    ui.setExpandedIcon(null);
    ui.setCollapsedIcon(null);
    JScrollPane sp = new JScrollPane(tree);
    getContentPane().add(sp, BorderLayout.CENTER);
  }

  public static void main(String args[]) {
    try {
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {}
  
    OnlyTextTreeExample frame = new OnlyTextTreeExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}


           
       

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