How to create a Choice which can be selected thru keyboard ?

Question

Hi,
I am using java.awt.Choice to display all the states in US, Canada and Mexico in that order. I need to make this list selectable using key board. ie, if i press A, it should first go to AL , then to AK etc. I have added the following code in the class which extends from Choice so that it i type A , it will go to AL. But subsequent key types for the same letter are not recognised.Please provide some pointers on how to do this.
protected void processEvent(AWTEvent evt)
super.processEvent(evt);
if( evt instanceof KeyEvent)
char ch = ((KeyEvent)evt).getKeyChar();
Character c = new Character(ch);
if(!Character.isLetterOrDigit(ch))
return;
for(int i =0; i < getItemCount(); i++)
if( getItem(i).substring(0,1).equalsIgnoreCase(c.toString()))
select(i);
break;
Thanks in advance.

Answer 1

thanks, it worked.
posting the whole code.
     protected void processEvent (AWTEvent evt)
          super.processEvent(evt);
if( evt instanceof KeyEvent && evt.getID() == KeyEvent.KEY_PRESSED)
char ch = ((KeyEvent)evt).getKeyChar();
Character c = new Character(ch);
if(!Character.isLetterOrDigit(ch))
return;
               int ind = 0;
               if(getSelectedItem().toUpperCase().startsWith(c.toString().toUpperCase()))
                    ind = getSelectedIndex()+1;
               boolean matchfound = false;
               for(int i = ind; i < getItemCount(); i++)
               if( getItem(i).toUpperCase().startsWith(c.toString().toUpperCase()))
                         matchfound = true;
select(i);
break;
               if(!matchfound)
                    for(int i = 0; i < getItemCount(); i++)
                         if( getItem(i).toUpperCase().startsWith(c.toString().toUpperCase()))
                              select(i);
                              break;
     }