JTree範例
package net.codejava.swing; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.SwingUtilities; import javax.swing.tree.DefaultMutableTreeNode; public class TreeExample extends JFrame { private JTree tree; public TreeExample() { //create the root node DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root"); //create the child nodes DefaultMutableTreeNode vegetableNode = new DefaultMutableTreeNode("Vegetables"); DefaultMutableTreeNode vegetableNode = new DefaultMutableTreeNode("Vegetables"); vegetableNode.add(new DefaultMutableTreeNode("Capsicum")); ...