How to use Map element as text of a JComboBox

Posted by llm on Stack Overflow See other posts from Stack Overflow or by llm
Published on 2010-05-11T17:12:15Z Indexed on 2010/05/11 17:54 UTC
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Filed under:

java

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swing

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jcombobox

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hashmap

I am populating a JComboBox (using addItem()) with all the elements of a collection. Each element in the collection is a HashMap (so its a ComboBox of Hashmaps..).

My question is - Given that I need each item to be a HashMap how do I set the text to apear in the combobox on the GUI? It needs to be the value of a certain key in the map. Normally if I am populating a combobox with my own type, I would just overide the toString() method...but I am not sure how to acheive this since I am using a Java HashMap.

Any ideas (if possible, without implementing my own HashMap)?

Update: It seems like there isn't anyway to avoid having the object int the JComboBox overide toString() if I want custom functionality..I wish there was a way to (1) specify the objects to be loaded into the JComboBox and (2) specify how these objects are to appear in the GUI.

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