Swing Tree

最新推荐文章于 2024-03-30 20:13:01 发布

最新推荐文章于 2024-03-30 20:13:01 发布 · 130 阅读

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文章标签：

#Swing #Office #Dreamweaver #Excel #Java

[网站分类]2.Java新手区专栏收录该内容

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本文介绍了一个使用Java Swing创建的简单GUI应用程序，该程序通过树形结构展示了一个包含多种软件分类及其子项目的目录结构。文章展示了如何使用JTree组件构建可交互的树形菜单，并设置了选择监听器来响应用户的操作。

package GUI;

import java.awt.Dimension;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTree;

import javax.swing.event.TreeSelectionEvent;

import javax.swing.event.TreeSelectionListener;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.TreeSelectionModel;

public class TreeTest extends JFrame

{

public TreeTest()

{

DefaultMutableTreeNode Program = new DefaultMutableTreeNode("Program");

DefaultMutableTreeNode Office = new DefaultMutableTreeNode("Office");

DefaultMutableTreeNode Word = new DefaultMutableTreeNode("Word");

DefaultMutableTreeNode PowerPoint = new DefaultMutableTreeNode("PowerPoint");

DefaultMutableTreeNode Access = new DefaultMutableTreeNode("Access");

DefaultMutableTreeNode Excel = new DefaultMutableTreeNode("Excel");

DefaultMutableTreeNode Java = new DefaultMutableTreeNode("Java");

DefaultMutableTreeNode j2se = new DefaultMutableTreeNode("j2se");

DefaultMutableTreeNode j2ee = new DefaultMutableTreeNode("j2ee");

DefaultMutableTreeNode j2me = new DefaultMutableTreeNode("j2me");

DefaultMutableTreeNode Application = new DefaultMutableTreeNode("Application");

DefaultMutableTreeNode Dreamweaver = new DefaultMutableTreeNode("Dreamweaver");

DefaultMutableTreeNode PotoShop = new DefaultMutableTreeNode("PotoShop");

DefaultMutableTreeNode VisualStudio = new DefaultMutableTreeNode("VisualStudio");

Office.add(Word);

Office.add(PowerPoint);

Office.add(Access);

Office.add(Excel);

Java.add(j2se);

Java.add(j2ee);

Java.add(j2me);

Application.add(Dreamweaver);

Application.add(PotoShop);

Application.add(VisualStudio);

Program.add(Office);

Program.add(Java);

Program.add(Application);

JTree jtree = new JTree(Program);

jtree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);

jtree.setRowHeight(20);

jtree.addTreeSelectionListener(new TreeSelectionListener()

{

public void valueChanged(TreeSelectionEvent e)

{

JTree tree = (JTree)e.getSource();

System.out.println(e.getPath());

}

});

JScrollPane jscrollpane = new JScrollPane(jtree);

this.add(jscrollpane);

}

public static void main(String[] args)

{

TreeTest tt = new TreeTest();

tt.setBounds(100, 200, 300, 400);

tt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

tt.setVisible(true);

}

}

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