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Thread: do actions in ComboBox

  1. #1
    Junior Member
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    Aug 2009
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    Default do actions in ComboBox

    I have designed a frame with a combo box,i want after choosing an item in combo box and submitting it by pressing OK,do some actions according to the selected item such as opening a new frame... .how can i do this?
    can u give me some sample codes for that?will be gratfull if help me about it!

  2. #2
    Junior Member
    Join Date
    Jul 2009
    SomeWhere in the world
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    Default Re: do actions in ComboBox

    private void jComboBox1ItemStateChanged(java.awt.event.ItemEvent evt) {
            if(evt.getStateChange()== evt.SELECTED && evt.getItem().toString().equals("Item 1"))

    I think it may help you ... if you change used listener interface.

  3. #3
    Junior Member
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    Oct 2009
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    Default Re: do actions in ComboBox

    You kind of answered your question as you asked it...

    You said in your question, "according to the selected item".

    The last two words that I quoted above are your answer. Anytime you want to know which item in your combobox is currently selected, you have two ways of finding out:

    JComboBox1.getSelectedIndex(); // Which returns and int value, with 0 being the first item in the combobox.
    JComboBox1.getSelectedItem(); // Which returns a String value that is the text of the item.

    Either one of these will get you where you need to be. Just put the following in your JButtonActionPerformed event:

    if ( JComboBox1.getSelectedItem().equals("What you are looking for") ) {
         // Take some action for this item.
    } else if ( JComboBox1.getSelectedItem().equals("Another string of text") ) {
         // Take some different action.
    } // ...etc...etc...etc

    Hope this helps.


    Sean C.
    PekinSOFT Systems

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