public void addName(String name){
  if (mUsedNames.put(name.toLowerCase(),"UNUSED") == null) {
    notifyChanged();
  }
}

public void addName ( String name ) { if ( mUsedNames . put ( name . toLowerCase ( ) , "UNUSED" ) == null ) { notifyChanged ( ) ; } }
adds the name to the list of used names . does not check if the name is already there .
