JTabbedPane: Contents changes in different tab.

Question

My applet consists of a jtabbedpane with 3 tabs. each tab consists of a panel, which in turn consists of a jComboBox and jTextArea. my problem is when i click on an item in jComboBox of tab 1, nothing happen with jTextArea in tab 1, but changes are in jTextArea of tab 3. actionlistener of the jComboBox cant cannot be compile if i put jTextArea as local var. so my jTextArea is a global var. please advice.

Answer 1

Im implementing RMI application btw, this is the client code:
public class Client extends JApplet
JTabbedPane tabbedPane;
JTextArea txt;
JComboBoc jcb;
String str;
public void init()
try
tabbedPane = new JTabbedPane();
JComponent tab1 = setPanel("ABC");
tabbedPane.addTab("ABC",tab1);
//tab2 and tab3
//setting layout
catch (Exception ex)
protected void getPanel()
try
//RMI connection to server goes here
//RMI accessing server objects goes here
//s.getText() is server object
//JTextArea is set for different content type for diff tab
txt.setText(s.getText());
catch (Exception ex)
protected JComponent setPanel(String input)
JPanel pnl = new JPanel();
txt = new JTextArea(20,60);
txt.setLineWrap(true);
txt.setWrapStyleWord(true);
getPanel();
jcb = new JComboBox(itemList);
jcb.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
JComboBox cb = (JComboBox)e.getSource();
str = (String)cb.getSelectedItem();
getPanel();
//setting layout
return pnl;
When the applet is initialize, everything goes fine. what i mean is tab1 has its own content of JTextArea, so do tab2 and tab3. but when i click on an item of JComboBox in tab1 or tab2, changes made are at JTextArea of tab3.
If JTextArea is declared as local in setPanel, the getPanel would not access the JTextArea.