3 JComboBox dependent of one another

[Marwen Ben]

Hello, I have 3 ComboBox that depends on the other one depends on the 2nd and 3rd 1st 2nd depends.

the problem that the elements of 2nd ComboBox there has one element that appears (the first element) I do not know how to correct it.

another problem just how empty a ComboBox from an index I tried removeItemAt (anIndex);


event on the first ComboBox:

if   (selectedIndexc1 == 1) {
 ...
					  comboBoxc2.removeAllItems();
 
							try {
								Statement m = s.getConn().createStatement();
								rs1 = m.executeQuery(rq);
						         while (rs1.next())  {
						         String A1= rs1.getString("....");
						         comboBoxc2.addItem(A1);
						         nbp++;
						         }
							  } catch (SQLException e1) {
								e1.printStackTrace();
							}  
						  }

event on the 2nd ComboBox:

if  ((selectedIndexc1==1) && (selectedIndexc2==0)) {
 
 ....
								  comboBoxcc3.removeAllItems();
 
								try {
									Statement m = s.getConn().createStatement();
									rs1 = m.executeQuery(rq);
							         while (rs1.next())  {
							         String A1= rs1.getString("......");
							         comboBoxc3.addItem(A1);
							         nbp++;
							         }
								  } catch (SQLException e1) {
									e1.printStackTrace();
								}  
							  }

[Darryl Burke]

To get better help sooner, post a SSCCE (Short, Self Contained, Compilable and Executable) example that demonstrates the problem. Use hardcoded data so that the program doesn't depend on database access.