Java JSplitPane分成左右2个窗口，如何根据左边的点击，右边显示不同的界面，求高手解答，在线等！

[baidu_25612359]

[size=12px]Java JSplitPane分成左右2个窗口，左边是Jtree，我如何点击JSplitPane左边的Jtree的节点，JSplitPane右边的窗口相应的显示不同的界面，本人接触java时间不长，不知道这种界面如何控制实现，最好给个简单的例子。下面是我自己写的程序，JSplitPane左边的是一个top节点，包含4个子节点，现在需要点击子节点，可以在JSplitPane右边实现界面的切换，请帮忙在右边添加几个简单的界面，并通过点击Jtree的界面来切换，期待大家的帮忙。[/size]

package test;

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JSplitPane;
import java.awt.BorderLayout;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;

public class test1 {

	private JFrame frame;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					test1 window = new test1();
					window.frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public test1() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		frame = new JFrame();
		frame.setBounds(100, 100, 821, 575);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JSplitPane splitPane = new JSplitPane();
		splitPane.setDividerLocation(150);
		frame.getContentPane().add(splitPane, BorderLayout.CENTER);
		
		JTree tree = new JTree();
		tree.setModel(new DefaultTreeModel(
			new DefaultMutableTreeNode("JTree") {
				/**
				 * 
				 */
				private static final long serialVersionUID = 1L;

				{
					DefaultMutableTreeNode node_1;
					node_1 = new DefaultMutableTreeNode("colors");
						node_1.add(new DefaultMutableTreeNode("blue"));
						node_1.add(new DefaultMutableTreeNode("violet"));
						node_1.add(new DefaultMutableTreeNode("red"));
						node_1.add(new DefaultMutableTreeNode("yellow"));
					add(node_1);
				}
			}
		));
		splitPane.setLeftComponent(tree);
	}

}

[樱花_殇]

请问右边部分想要更改显示内容该怎么改了？