Search text field and combo box

[Allgorythm]

how can i make a search field (Jtextfield) with a popup button that will show me the lists of items that I need,

im trying to set the JcomboBox setEditable(true) to make some editing..
but when I check the methods, but Jcombo box can only return one of its listed items, how can i retrieve the data that I typed In? I hope you understand this problem.

one example is in my IDE , im using netbeans 6.7, and there is a search field that has something like a combo box into it.. is there any way to do it? Im searching at google but im confuse on what keyword should I use to bring me in a almost exact resource, but still I cant find anything that can answer this one.

[Eranga]

If I'm correct, you want to get the text which you entered in the box, not the one in the list. Is it?

[Allgorythm]

If I'm correct, you want to get the text which you entered in the box, not the one in the list. Is it?

yes I need the text that i entered in the box. but I also need one of the list as the category to be searched