Adding tabs after pressing a button in java

Question

I am using java swing and I want to add 3 tabs after the user is choosing "New" from JMenuBar.

The tabs won't be there when the application is started. These will be shown only after choosing "New".

How can I Do it? Do I need to add these to the actionListener of "New"? How it can be added?

i was adding insertTab within the actionListener. but it was showing method not found. — D.L., Jul 13 '12 at 07:01

score 4 · Answer 1 · answered Jul 13 '12 at 06:18

Since you tagged this question with JTabbedPane, I assume that is the component you are using. You can use the addTab or insertTab methods to add a tab.

If you want to do this in reaction of a button press, putting those calls in the ActionListener is indeed a valid solution.

score 1 · Answer 2 · edited Jul 13 '12 at 09:59

1

add an ActionListener to your JButton like this:

final JTabbedPane tabbedPane = new JTabbedPane();
    JButton addButton = new JButton("new");
    addButton.addActionListener(new ActionListener() {
        //will be called if the button gets clicked
        @Override
        public void actionPerformed(ActionEvent e) {
            JPanel panel = new JPanel();//will be displayed in the Tab
            tabbedPane.add("title", panel);
            //.add() is the easier way for tabbedPane.insertTab(many arguments here)
            //add what ever you like(repeat three times)
        }
    });

edited Jul 13 '12 at 09:59

kleopatra

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answered Jul 13 '12 at 09:26

Simulant

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+1 for making me look into the source of tabbedPane.add(..) - astonishingly, it really is overridden to delegate to addTab (for components != UIResource :-) – kleopatra Jul 13 '12 at 10:00
@kleopatra looking at the documentation would have been sufficient. Javadoc mentions 'Cover method for `insertTab`.' – Robin Jul 13 '12 at 10:23
@Robin - true, though I'm used to not fully rely on documentation, being a lazy doc writer myself :-) Plus it doesn't mention the UIResource stuff: not important for application code, but for framework code (one surprise less ...) – kleopatra Jul 13 '12 at 10:49
this is not working.. It is not showing any error. But after clicking the button the tabs are not created.. I have tried it in jdk... and for insertTab it is showing "can not find insertTab symbol". – D.L. Jul 14 '12 at 18:47

Adding tabs after pressing a button in java

2 Answers2