if (getGroupingSeparatorTextField().getText().length()>=1)
if ((keyEvent.getKeyChar()!=8 && getGroupingSeparatorTextField().getText().length()>=1) && ((getGroupingSeparatorTextField().getSelectedText()==null) || (getGroupingSeparatorTextField().getSelectedText().length()==0)))
public void groupingSeparatorTextField_KeyTyped(java.awt.event.KeyEvent keyEvent) {	if (getGroupingSeparatorTextField().getText().length()>=1)		keyEvent.setKeyChar('\0');	return;}