The mutual conversion code between Date, LocalDate, LocalDateTime, LocalTime and timestamp in Java

    @Test
    public void test06(){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        // Date
        Date date = new Date();
        ("Date\t" + (date));

        // Date to LocalDateTime        DateTimeFormatter dtf = ("yyyy-MM-dd HH:mm:ss");
        LocalDateTime dateToLocalDateTime = ().atZone(()).toLocalDateTime();
        ("Date To LocalDateTime\t" + (dateToLocalDateTime));
    }

    @Test
    public void test07(){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        // Date
        Date date = new Date();
        ("Date\t" + (date));

        // Date to LocalDate        // Note that LocalDate can only have year, month and day, and format dates cannot be time, minute and second, otherwise an error will be reported        DateTimeFormatter dtf = ("yyyy-MM-dd");
        LocalDate dateToLocalDate = ().atZone(()).toLocalDate();
        ("Date To LocalDate\t" + (dateToLocalDate));
    }

    @Test
    public void test08(){
        // LocalDateTime to LocalDate        DateTimeFormatter dtf = ("yyyy-MM-dd");
        LocalDate localDateTimeToLocalDate = ().toLocalDate();
        ("LocalDateTime To LocalDate\t" + (localDateTimeToLocalDate));
    }

    @Test
    public void test09(){
        // LocalDateTime to LocalTime        // Note that LocalTime can only have time, minute and second, and the formatted date cannot have year, month and day, otherwise an error will be reported.        DateTimeFormatter dtf = ("HH:mm:ss");
        LocalTime localDateTimeToLocalTime = ().toLocalTime();
        ("LocalDateTime To LocalTime\t" + (localDateTimeToLocalTime));
    }

    @Test
    public void test10(){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        // LocalDateTime to Date        ZoneId zoneId = ();
        Date localDateTimeToDate = (().atZone(zoneId).toInstant());
        ("LocalDateTime To Date\t" + (localDateTimeToDate));
    }

    @Test
    public void test11(){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        // LocalDate to Date        Date LocalDateToDate = (().atStartOfDay(()).toInstant());
        ("LocalDate To Date\t" + (LocalDateToDate));
    }

    @Test
    public void test12(){
        DateTimeFormatter dtf = ("yyyy-MM-dd HH:mm:ss");
        // Timestamp to LocalDateTime        Long timestamp = ().toInstant(("+8")).toEpochMilli();
        LocalDateTime time2 = (timestamp/1000,0,(8));
        ("Timestamp To LocalDateTime\t" + (time2));
    }