Converting String to Time without Date in Java

Question

How to convert String to Time in java without Date,I need specifically the time alone

String Start_time="04:30";

I used

 DateFormat time=new SimpleDateFormat("hh:mm");
 Time bid_start_time=new Time(time.parse("Start_time").getTime());

I exactly need the value "04:30" in Date format.I don't need the extra Date parameters like DD/MM/YY

Answer 1

You can't have a Date without the calendar date parts. That's a simple fact of what Date represents:

The class Date represents a specific instant in time, with millisecond precision. ... represent[s] the specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT.

You can use LocalTime in java.time built into Java 8 and later (Tutorial), or LocalTime from Joda-Time otherwise. These classes represent a time-of-day without a date nor a time zone.

LocalTime localTime = LocalTime.parse("04:30");

You could prepend the time string with "1970-01-01 ", and then parse e.g. "1970-01-01 04:30", and then just take care to use the time parts of this. I would recommend against that because of the potential not just to use it for only its time parts.