请教各位大侠如何在JTree树中得到各个节点显示出来的字串 TreeEvent里的getPath()/getName() 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 I see,另外getpath之后得到node,可以使用toString()来得到字符串。 package test;import java.awt.*;import com.borland.jbcl.layout.*;import javax.swing.*;import javax.swing.tree.*;import javax.swing.event.*;import java.awt.event.*;import java.util.Vector;/** * Title: * Description: * Copyright: Copyright (c) 2002 * Company: * @author * @version 1.0 */public class Frame1 extends JFrame { XYLayout xYLayout1 = new XYLayout(); JComboBox jComboBox1 = new JComboBox(); JTextField jTextField1 = new JTextField(); Vector vecL=new Vector(); JTree jTree1;// = new JTree(); DefaultMutableTreeNode root; public Frame1() { try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } private void jbInit() throws Exception { this.getContentPane().setLayout(xYLayout1); /* for(int i=0;i<20;i++){ vecL.add(new String(Integer.toString(i))); } for(int i=0;i<20;i+=4){ System.out.println("!!!!!第"+i+"个元素 = "+vecL.elementAt(i)); }*/ creatTree(); jTree1 = new JTree(root); jTree1.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); jTree1.addTreeSelectionListener(new SelListener()); jComboBox1.addItem("OK"); jComboBox1.addItem("NO"); jComboBox1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jComboBox1_actionPerformed(e); System.out.println("Hello!"); } }); this.getContentPane().add(jTree1, new XYConstraints(32, 32, 94, 131)); this.getContentPane().add(jComboBox1, new XYConstraints(189, 85, -1, -1)); this.getContentPane().add(jTextField1, new XYConstraints(166, 145, 183, -1)); } void jComboBox1_actionPerformed(ActionEvent e) { } void creatTree() { root = new DefaultMutableTreeNode("C:"+"\\"); DefaultMutableTreeNode pro = new DefaultMutableTreeNode("Program Files"); DefaultMutableTreeNode game = new DefaultMutableTreeNode("Game"); DefaultMutableTreeNode age = new DefaultMutableTreeNode("age"); DefaultMutableTreeNode brood = new DefaultMutableTreeNode("brood"); game.add(age); game.add(brood); root.add(game); root.add(pro); } class SelListener implements TreeSelectionListener{ public void valueChanged(TreeSelectionEvent se) { JTree tree = (JTree)se.getSource(); DefaultMutableTreeNode selNode = (DefaultMutableTreeNode)tree.getLastSelectedPathComponent(); jTextField1.setText(selNode.toString()); } }public static void main(String[] args){ try { //UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); //UIManager.setLookAndFeel(new com.sun.java.swing.plaf.motif.MotifLookAndFeel()); //UIManager.setLookAndFeel(new javax.swing.plaf.multi.MultiLookAndFeel()); } catch(Exception e) { e.printStackTrace(); } Frame1 frame=new Frame1(); frame.setSize(600,400); frame.setLocation(100,100); frame.show(); }} 关于线程的一个问题 Java中return的问题 紧急求救,关于java String的问题 提两个问题:1.什么是线程安全?线程安全是怎么完成的(原理)?2.为什么继承接口Runnable会产生脏读现象,继承类Thread,就不会产生脏读现象? 请问jfilechooser 怎样设置才能选择文件夹? 在线等!!高手进来指点小弟!! 正则表达式的概念 现在流行的开发平台有哪些? 帮帮我 !我先谢谢啦! 有谁试过用JAVA编FTP软件? jdbc-odbc的问题 Java Bean +JDBC-ODBC桥+Ms SqlServer7.0中文输入出错!
import com.borland.jbcl.layout.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.util.Vector;/**
* Title:
* Description:
* Copyright: Copyright (c) 2002
* Company:
* @author
* @version 1.0
*/public class Frame1 extends JFrame {
XYLayout xYLayout1 = new XYLayout();
JComboBox jComboBox1 = new JComboBox();
JTextField jTextField1 = new JTextField();
Vector vecL=new Vector();
JTree jTree1;// = new JTree();
DefaultMutableTreeNode root; public Frame1() {
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
}
private void jbInit() throws Exception {
this.getContentPane().setLayout(xYLayout1);
/* for(int i=0;i<20;i++){
vecL.add(new String(Integer.toString(i)));
}
for(int i=0;i<20;i+=4){
System.out.println("!!!!!第"+i+"个元素 = "+vecL.elementAt(i)); }*/
creatTree();
jTree1 = new JTree(root);
jTree1.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
jTree1.addTreeSelectionListener(new SelListener());
jComboBox1.addItem("OK");
jComboBox1.addItem("NO");
jComboBox1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jComboBox1_actionPerformed(e);
System.out.println("Hello!");
}
});
this.getContentPane().add(jTree1, new XYConstraints(32, 32, 94, 131));
this.getContentPane().add(jComboBox1, new XYConstraints(189, 85, -1, -1));
this.getContentPane().add(jTextField1, new XYConstraints(166, 145, 183, -1));
} void jComboBox1_actionPerformed(ActionEvent e) { }
void creatTree()
{
root = new DefaultMutableTreeNode("C:"+"\\");
DefaultMutableTreeNode pro = new DefaultMutableTreeNode("Program Files"); DefaultMutableTreeNode game = new DefaultMutableTreeNode("Game"); DefaultMutableTreeNode age = new DefaultMutableTreeNode("age");
DefaultMutableTreeNode brood = new DefaultMutableTreeNode("brood");
game.add(age);
game.add(brood); root.add(game);
root.add(pro);
} class SelListener implements TreeSelectionListener{
public void valueChanged(TreeSelectionEvent se)
{
JTree tree = (JTree)se.getSource();
DefaultMutableTreeNode selNode = (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
jTextField1.setText(selNode.toString()); }
}public static void main(String[] args){
try {
//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.setLookAndFeel(new com.sun.java.swing.plaf.motif.MotifLookAndFeel());
//UIManager.setLookAndFeel(new javax.swing.plaf.multi.MultiLookAndFeel()); }
catch(Exception e) {
e.printStackTrace();
}
Frame1 frame=new Frame1();
frame.setSize(600,400);
frame.setLocation(100,100);
frame.show();
}
}