import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;public class SplitPanelDemo extends JFrame {  JPanel contentPane=new JPanel();  JLabel jLabel1 = new JLabel();  Border border1;  Component component1;  JSplitPane jSplitPane1 = new JSplitPane();  JScrollPane ScrollImage = new JScrollPane();  JLabel ImageLabel = new JLabel();  JScrollPane ScrollText = new JScrollPane();  JTextArea displayArea = new JTextArea();  public SplitPanelDemo() {    try {jbInit();} catch(Exception e) {}  }  public static void main(String[] args) {    SplitPanelDemo frame = new SplitPanelDemo();    frame.setVisible(true);  }  //當窗口關閉時的處理代碼  protected void processWindowEvent(WindowEvent e) {    if (e.getID() == WindowEvent.WINDOW_CLOSING) {      System.exit(0);    }  }  private void jbInit() throws Exception {    //設置窗口的標題與大小    setTitle("分隔條實例演示");    setSize(new Dimension(400,300));    //取得底層容器并將其布局設為BoxLayout    contentPane=(JPanel)this.getContentPane();    contentPane.setLayout(new BoxLayout(contentPane,BoxLayout.Y_AXIS));    //設置標簽的位置與標題    jLabel1.setAlignmentX((float) 0.5);    jLabel1.setText("分隔框");    //設置分隔框的位置,邊框,分隔條的大小及位置    jSplitPane1.setAlignmentX((float) 0.5);    jSplitPane1.setBorder(BorderFactory.createEtchedBorder());    jSplitPane1.setDividerSize(20);    jSplitPane1.setDividerLocation(100);    //定義圖片并將其加入標簽中    ImageIcon dag=new ImageIcon("dog.jpg");    ImageLabel.setIcon(dag);    //插入對圖片的文字說明    displayArea.setText("右邊是一條可愛\n的狗.");    //將圖片及文字框加入滾動框中    ScrollText.getViewport().add(displayArea, null);    ScrollImage.getViewport().add(ImageLabel, null);    //分別在分隔框的右邊及左邊加入圖片及文字框    jSplitPane1.add(ScrollImage, JSplitPane.RIGHT);    jSplitPane1.add(ScrollText, JSplitPane.LEFT);    //加入空白邊框    border1 = BorderFactory.createEmptyBorder(10,10,10,10);    contentPane.setBorder(border1);    //加入標簽與垂直分隔條    contentPane.add(jLabel1, null);    component1 = Box.createVerticalStrut(17);    contentPane.add(component1, null);    //加入分隔框    contentPane.add(jSplitPane1, null);  }}