@Override
public void insertUpdate(DocumentEvent e) {
try {
// Check for change in lines only if a newline
// character is inserted.
String insertion = e.getDocument().getText(e.getOffset(), e.getLength());
if (insertion.contains("\n")) documentChanged();
} catch (BadLocationException ex) {
/* nothing to do */
}
}
void updateTheLabel(DocumentEvent e) {
Document doc = (Document) e.getDocument();
String text = null;
try {
text = doc.getText(0, doc.getLength());
doc = null;
} catch (BadLocationException ex) {
text = null;
}
if (text != null) {
try {
double number = Double.parseDouble(text);
if (number > 1) {
label.setText(labelPair.getPlural());
} else {
label.setText(labelPair.getSingular());
}
} catch (NumberFormatException ex) {
// Do nothing
} finally {
text = null;
}
}
}