treewindow.java

初学的好东西值得一看看欢迎下载观看使用

import javax.swing.JFrame;
import javax.swing.JSplitPane;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.event.TreeSelectionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
class TreeWindow extends JFrame implements TreeSelectionListener{
	JSplitPane jSplitPane1=new JSplitPane();
	JScrollPane jScrollPane1=new JScrollPane();
	WelcomePane welcomePane1=new WelcomePane();
	DefaultMutableTreeNode rootNode=new DefaultMutableTreeNode("本系统处理模块             ");
	JTree jTree1=new JTree(rootNode);
	TreeWindow(){
		super("流行的Tree窗口示例");
		setSize(600,500);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		//jSplitPane1.setDividerSize(2);
		//jSplitPane1.setDividerLocation(160);
		getContentPane().add(jSplitPane1);
		jSplitPane1.setLeftComponent(jScrollPane1);
		jSplitPane1.setRightComponent(welcomePane1);
		//
		jScrollPane1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
		jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		jScrollPane1.getViewport().setView(jTree1);
		initTree();
		jTree1.expandRow(0);
		jTree1.expandRow(1);
		jTree1.expandRow(6);
		//
		jTree1.addTreeSelectionListener(this);
		show();
	}
	void initTree(){
		DefaultMutableTreeNode childNode1=new DefaultMutableTreeNode("项目监控");
		rootNode.add(childNode1);
		DefaultMutableTreeNode childNode2=new DefaultMutableTreeNode("项目计划");
		childNode1.add(childNode2);
		childNode2=new DefaultMutableTreeNode("项目核定");
		childNode1.add(childNode2);
		childNode2=new DefaultMutableTreeNode("每日巡视");
		childNode1.add(childNode2);
		childNode2=new DefaultMutableTreeNode("进展汇报");
		childNode1.add(childNode2);
		//
		childNode1=new DefaultMutableTreeNode("项目核算");
		rootNode.add(childNode1);
		childNode2=new DefaultMutableTreeNode("成本录入");
		childNode1.add(childNode2);
		childNode2=new DefaultMutableTreeNode("成本复核");
		childNode1.add(childNode2);
		childNode2=new DefaultMutableTreeNode("帐目查阅");
		childNode1.add(childNode2);
	}
	public void valueChanged(TreeSelectionEvent e){
		DefaultMutableTreeNode selectedNode=(DefaultMutableTreeNode)jTree1.getLastSelectedPathComponent();
		if(selectedNode.toString()=="项目计划"){
			PlanPane planPane1=new PlanPane();
			jSplitPane1.setRightComponent(planPane1);
		}
		else if(selectedNode.toString()=="项目核定"){
			PlanCheck planCheck1=new PlanCheck();
			jSplitPane1.setRightComponent(planCheck1);
		}
	}
	public static void main(String[] args){
		TreeWindow treeWindow1=new TreeWindow();
	}
}
class WelcomePane extends JPanel{
	JLabel jLabel1=new JLabel("生产项目管理系统-----Welcome!");
	WelcomePane(){
		add(jLabel1);
	}
}
class PlanPane extends JPanel implements ActionListener{
	JButton jButton1=new JButton("项目计划");
	PlanPane(){
		jButton1.addActionListener(this);
		add(jButton1);
	}
	public void actionPerformed(ActionEvent e){
		if(e.getSource()==jButton1){
			System.out.println("项目计划按钮被单击");
		}
	}
}
class PlanCheck extends JPanel implements ActionListener{
	JButton jButton1=new JButton("项目核定");
	PlanCheck(){
		jButton1.addActionListener(this);
		add(jButton1);
	}
	public void actionPerformed(ActionEvent e){
		if(e.getSource()==jButton1){
			System.out.println("项目核定按钮被单击");
		}
	}
}