java - Displaying just one value in JComboBox when one is selected -

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hello :) need changing jcombobox in jtable. i'm new gui-programming , swing , couldn't solve problem: have change behavior of jcombobox.

you can see combobox in picture below. if "ja" selected there should "nein" option , other way around. cool if "nein" set per default. code written 1 student last semester , have difficulties adjust combobox have to.

table combobox

that's code snippet combobox gets initialized. 

optionsinteger = new jcombobox<string>();     optionsinteger.additem("ja");     optionsinteger.additem("nein");     optionsinteger.setselecteditem(optionsinteger.getitemat(0));     optionsinteger.setselectedindex(1);     optionsinteger.setname("optionsinteger");

the combobox gets inserted jtable in method:

    public void repaintxtable(defaulttablemodel model,jtable table, int xamount, jscrollpane scrollpane,                                 jcombobox<string> optionsinteger) {      model.setrowcount(xamount);      th = table.gettableheader();     tcm = th.getcolumnmodel();     tcs = tcm.getcolumns();      tcs.nextelement().setheadervalue("");     tcs.nextelement().setheadervalue("lower");     tcs.nextelement().setheadervalue("upper");     tc = tcs.nextelement();     tc.setheadervalue("integer");      tc.setcelleditor(new defaultcelleditor(optionsinteger));      for(int i=0;i<xamount;i++)     {         model.setvalueat("x"+(i+1), i, 0);     }  }

thank help.

in code, line

optionsinteger.setselecteditem(optionsinteger.getitemat(0));

sets default selection zeroth element (ja). line

optionsinteger.setselectedindex(1);

sets default selection first element (nein).

either set selected item or selected index. there's no need both.

a jcombobox not remove selected element default. if selected element removed, how selected element display in jtable?

if want this, you'll have create own version of jcombobox.


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