Problem with setting tooltips for items of a JCombobox

Question

hi guys,
I want to set tooltips for items of JComboBox & the code that i have written is given below , but the tooltip text is set for all the items of Nonitindustrycombo but the tooltips remain the same even for Nonitdesgcombo's items.
Is that we need to refresh the ComboboxRenderer every time ?
I am not able to trace out the exact reason for this,please if anyone can suggest me something regarding this would be of great use to me.
class Searchpanel extends JPanel {
String[] str = null;
public SearchPanel(){
Nonitindustrycombo.addItem("--Select--");
ArrayList NonITindus = ERPModel.getAllNonitIndustry(); //gets all the items(strings) for Nonitindustrycombo
for (Iterator iter = NonITindus.iterator(); iter.hasNext();) {
String str = iter.next().toString();
Nonitindustrycombo.addItem(str);
SetTooltip(Nonitindustrycombo,NonITindus);
Nonitdesgcombo.addItem("--Select---");
ArrayList desg = ERPModel.getAllNonitDesg(); //gets all the items(strings) for Nonitdesgcombo
for (Iterator iter = desg.iterator(); iter.hasNext();) {
Nonitdesgcombo.addItem(iter.next());
SetTooltip(Nonitdesgcombo,desg);
class MyComboBoxRenderer extends BasicComboBoxRenderer
public Component getListCellRendererComponent(JList list, Object value,
int index, boolean isSelected,
boolean cellHasFocus)
if (isSelected)
setBackground(list.getSelectionBackground());
setForeground(list.getSelectionForeground());
if (0 < (index))
list.setToolTipText(str[index - 1]);
else
setBackground(list.getBackground());
setForeground(list.getForeground());
setFont(list.getFont());
setText((value == null) ? "" : value.toString());
return this;
private void SetTooltip(JComboBox combo,ArrayList arr){
str = (String []) arr.toArray (new String [arr.size ()]);
combo.setRenderer(new MyComboBoxRenderer());
public static void main(String[] args){
new SearchPanel();
Thanks ,
vishal

Answer 1

1) You where given a working example in your last posting on this topic. Compare your code with the working code to see whats different and fix it.
2) The code you posted doesn't compile.
3) You didn't use the "Code Formatting Tags" when you posted your code so it not readable.