@ -25,7 +25,7 @@ public class UIPositiveIntNumberField extends UINumberField {
public void insertString(int offset, String s, AttributeSet a) throws BadLocationException {
String str = getText(0, getLength());
if (!s.matches("^[0-9\\-]+$")) {
if (!s.matches("^[0-9]+$")) {
Toolkit.getDefaultToolkit().beep();
return;
}