Why doesn't addTextListener work here?

Question

The "addTextListener" produces an error. The compiler tells me "cannot resolve symbol".Why?
yearField.addTextListener(new TextListener()
    public void textValueChanged(TextEvent t) {
      String s = yearField.getText();
      int col = yearField.getColumns(); // get maximum textfield length
  //     check string length against maximum
      if ( (0 < col) && (col < s.length())) {
        Toolkit.getDefaultToolkit().beep();
        int cp = yearField.getCaretPosition(); // get caret position after change
        yearField.setText(s = s.substring(0, col)); // adjust string to maximum size
        yearField.setCaretPosition(cp > col - 1 ? col - 1 : cp); // caret never trespass size limits}}
    );

Answer 1

JTextField yearField = new JTextField();
yearField.addTextListener(new TextListener()
                    public void textValueChanged(TextEvent e)
                         String s = yearField.getText();
                         int col = yearField.getColumns();
                         if ((0 < col) && (col < s.length()))
                              Toolkit.getDefaultToolkit().beep();
                              int cp = yearField.getCaretPosition();
                              yearField.setText(s = s.substring(0, col));
                              yearField.setCaretPosition(cp > col-1 ? col-1 : cp);
MyFrame.java:120: cannot resolve symbol
symbol  : method addTextListener (<anonymous java.awt.event.TextListener>)
location: class javax.swing.JTextField
               yearField.addTextListener(new TextListener()
                                 ^
1 error