Java JSpinner错误地改变了它的年份

Question

这是我创建日期JSpinner的方法。当我点击箭头时，它只能将年份递减一些值（两次或一次）或递增（仅几次）一次。我很困惑，请帮忙！

Date current = calendar.getTime();
SpinnerDateModel yearsData = new SpinnerDateModel(current,null,null,Calendar.YEAR);
JSpinner years = new JSpinner(yearsData);
years.setEditor(new JSpinner.DateEditor(years, "YYYY"));
JFormattedTextField tfYears = ((JSpinner.DefaultEditor)years.getEditor()).getTextField();
tfYears.setHorizontalAlignment(JTextField.RIGHT);
tfYears.setFont(new Font("SansSerif", Font.PLAIN, 10));

Answer 1

尝试使用y代替Y

years.setEditor(new JSpinner.DateEditor(years, "yyyy"));

Y =周年，y =年

阅读：SimpleDateFormat