JTree

最新推荐文章于 2025-06-16 21:21:11 发布

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本文展示了一个使用 Java Swing 的 JTree 控件创建医院病房管理系统的简单示例。该示例通过构建 DefaultMutableTreeNode 类的实例来组织医院及其下属病房的数据结构，并将其显示在一个树形视图中。

JTree

import java.awt.Container;

import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;

public class Test extends JFrame
{
	JTree hospitalTree;
	Test()
	{
		setSize(300,250);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container con = getContentPane();
		DefaultMutableTreeNode root = new DefaultMutableTreeNode("医院");
		DefaultMutableTreeNode hospital_a = new DefaultMutableTreeNode("医院a");
		DefaultMutableTreeNode hospital_b = new DefaultMutableTreeNode("医院b");
		DefaultMutableTreeNode hospital_c = new DefaultMutableTreeNode("医院c");
		DefaultMutableTreeNode hospital_d = new DefaultMutableTreeNode("医院d");
		DefaultMutableTreeNode hospital_e = new DefaultMutableTreeNode("医院e");
		DefaultMutableTreeNode hospital_f = new DefaultMutableTreeNode("医院f");
		
		DefaultMutableTreeNode ward_a_a = new DefaultMutableTreeNode("病房a");
		DefaultMutableTreeNode ward_a_b = new DefaultMutableTreeNode("病房b");
		DefaultMutableTreeNode ward_a_c = new DefaultMutableTreeNode("病房c");
		DefaultMutableTreeNode ward_a_d = new DefaultMutableTreeNode("病房d");
		
		hospital_a.add(ward_a_a);
		hospital_a.add(ward_a_b);
		hospital_a.add(ward_a_c);
		hospital_a.add(ward_a_d);
		
		root.add(hospital_a);
		root.add(hospital_b);
		root.add(hospital_c);
		root.add(hospital_d);
		root.add(hospital_e);
		root.add(hospital_f);
		hospitalTree = new JTree(root);
		JScrollPane scrollPane = new JScrollPane(hospitalTree);
		con.add(scrollPane);
	}
	public static void main(String[] args)
	{
		new Test();
	}
}