Java JTree_4

package com.han; 
 
import java.awt.BorderLayout; 
import java.awt.Font; 
import java.util.Enumeration; 
 
import javax.swing.JFrame; 
import javax.swing.JTree; 
import javax.swing.tree.DefaultMutableTreeNode; 
import javax.swing.tree.DefaultTreeCellRenderer; 
import javax.swing.tree.DefaultTreeModel; 
import javax.swing.tree.TreePath; 
 
public class JTree_4 extends JFrame { 
    /**
     * 
     */ 
    private static final long serialVersionUID = -2323546046067757781L; 
 
    public JTree_4() { 
        DefaultMutableTreeNode root = new DefaultMutableTreeNode("ROOT"); 
        DefaultMutableTreeNode nodeA = new DefaultMutableTreeNode("人事管理"); 
        DefaultMutableTreeNode nodeB = new DefaultMutableTreeNode("待遇管理"); 
        DefaultMutableTreeNode nodeC = new DefaultMutableTreeNode("系统维护"); 
        root.add(nodeA); 
        root.add(nodeB); 
        root.add(nodeC); 
        DefaultMutableTreeNode nodeAA = new DefaultMutableTreeNode("帐套管理"); 
        DefaultMutableTreeNode nodeAB = new DefaultMutableTreeNode("考勤管理"); 
        DefaultMutableTreeNode nodeAC = new DefaultMutableTreeNode("奖惩管理"); 
        DefaultMutableTreeNode nodeAD = new DefaultMutableTreeNode("培训管理"); 
        nodeA.add(nodeAA); 
        nodeA.add(nodeAB); 
        nodeA.add(nodeAC); 
        nodeA.add(nodeAD); 
        DefaultMutableTreeNode nodeBA = new DefaultMutableTreeNode("帐套管理"); 
        DefaultMutableTreeNode nodeBB = new DefaultMutableTreeNode("人员设置"); 
        DefaultMutableTreeNode nodeBC = new DefaultMutableTreeNode("待遇报表"); 
        nodeB.add(nodeBA); 
        nodeB.add(nodeBB); 
        nodeB.add(nodeBC); 
        DefaultMutableTreeNode nodeCA = new DefaultMutableTreeNode("企业架构"); 
        DefaultMutableTreeNode nodeCB = new DefaultMutableTreeNode("基本资料"); 
        DefaultMutableTreeNode nodeCC = new DefaultMutableTreeNode("系统初始化"); 
        nodeC.add(nodeCA); 
        nodeC.add(nodeCB); 
        nodeC.add(nodeCC); 
         
        DefaultTreeModel defaultTreeModel = new DefaultTreeModel(root); 
        JTree tree = new JTree(defaultTreeModel); 
        getContentPane().add(tree, BorderLayout.WEST); 
         
        // expand initially all nodes of the tree  
        @SuppressWarnings("rawtypes") 
        Enumeration enumerate = root.preorderEnumeration(); 
        while (enumerate.hasMoreElements()) { 
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) enumerate.nextElement(); 
            tree.expandPath(new TreePath(node.getPath())); 
        } 
         
        // set root node invisible  
        tree.setRootVisible(false); 
         
        // set nodes' icons  
        DefaultTreeCellRenderer treeCellRenderer = (DefaultTreeCellRenderer) tree.getCellRenderer(); 
        treeCellRenderer.setLeafIcon(null); 
        treeCellRenderer.setClosedIcon(null); 
        treeCellRenderer.setOpenIcon(null); 
         
        // set the connection line way  
        tree.putClientProperty("JTree.lineStyle", "None"); 
         
        // set row height of the tree and font style of the node object   
        tree.setRowHeight(20); 
        tree.setFont(new Font("宋体", Font.BOLD, 14)); 
    } 
     
    public static void main(String[] args) { 
        JTree_4 instance = new JTree_4(); 
        instance.setTitle("定制树"); 
        instance.setVisible(true); 
        instance.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
        instance.pack(); 
    } 
} 
package com.han;

import java.awt.BorderLayout;
import java.awt.Font;
import java.util.Enumeration;

import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreePath;

public class JTree_4 extends JFrame {
 /**
  *
  */
 private static final long serialVersionUID = -2323546046067757781L;

 public JTree_4() {
  DefaultMutableTreeNode root = new DefaultMutableTreeNode("ROOT");
  DefaultMutableTreeNode nodeA = new DefaultMutableTreeNode("人事管理");
  DefaultMutableTreeNode nodeB = new DefaultMutableTreeNode("待遇管理");
  DefaultMutableTreeNode nodeC = new DefaultMutableTreeN

补充：软件开发 , Java ,

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