Parse time of format hh mm ss

Question

How can I parse a time of format hh mm ss   inputted as a string to obtain only the integer values  ignoring the colons  in java

User · Answer

String time    12 32 22   String   values   time split         This will take your time and split it where it sees a colon and put the value in an array  so you should have 3 values after this   Then loop through string array and convert each one   with Integer parseInt

User · Answer

As per Basil Bourque s comment  this is the updated answer for this question  taking into account the new API of Java 8       String myDateString    13 24 40       LocalTime localTime   LocalTime parse myDateString  DateTimeFormatter ofPattern  HH mm ss         int hour   localTime get ChronoField CLOCK HOUR OF DAY       int minute   localTime get ChronoField MINUTE OF HOUR       int second   localTime get ChronoField SECOND OF MINUTE          prints  hour  13  minute  24  second  40       System out println String format  hour   d  minute   d  second   d   hour  minute  second      Remarks    since the OP s question contains a concrete example of a time instant containing only hours  minutes and seconds  no day  month  etc    the answer above only uses LocalTime  If wanting to parse a string that also contains days  month  etc  then LocalDateTime would be required  Its usage is pretty much analogous to that of LocalTime  since the time instant int OP s question doesn t contain any information about timezone  the answer uses the LocalXXX version of the date time classes  LocalTime  LocalDateTime   If the time string that needs to be parsed also contains timezone information  then ZonedDateTime needs to be used           Below is the old  original  answer for this question  using pre-Java8 API         I m sorry if I m gonna upset anyone with this  but I m actually gonna answer the question  The Java API s are pretty huge  I think it s normal that someone might miss one now and then   A SimpleDateFormat might do the trick here   http   docs oracle com javase 7 docs api java text SimpleDateFormat html  It should be something like   String myDateString    13 24 40     SimpleDateFormat sdf   new SimpleDateFormat  hh mm ss      the above commented line was changed to the one below  as per Grodriguez s pertinent comment  SimpleDateFormat sdf   new SimpleDateFormat  HH mm ss    Date date   sdf parse myDateString    Calendar calendar   GregorianCalendar getInstance       creates a new calendar instance calendar setTime date        assigns calendar to given date  int hour   calendar get Calendar HOUR   int minute       similar methods for minutes and seconds   The gotchas you should be aware of    the pattern you pass to SimpleDateFormat might be different then the one in my example depending on what values you have  are the hours in 12 hours format or in 24 hours format  etc   Look at the documentation in the link for details on this Once you create a Date object out of your String  via SimpleDateFormat   don t be tempted to use Date getHour    Date getMinute   etc  They might appear to work at times  but overall they can give bad results  and as such are now deprecated  Use the calendar instead as in the example above

User · Answer

A bit verbose  but it s the standard way of parsing and formatting dates in Java   DateFormat formatter   new SimpleDateFormat  HH mm ss    try     Date dt   formatter parse  08 19 12      Calendar cal   Calendar getInstance      cal setTime dt     int hour   cal get Calendar HOUR     int minute   cal get Calendar MINUTE     int second   cal get Calendar SECOND     catch  ParseException e         This can happen if you are trying to parse an invalid date  e g   25 19 12       Here  you should log the error and decide what to do next   e printStackTrace

User · Answer

If you want to extract the hours  minutes and seconds  try this   String inputDate    12 00 00   String   split   inputDate split       int hours   Integer valueOf split 0    int minutes   Integer valueOf split 1    int seconds   Integer valueOf split 2

[java] Parse time of format hh:mm:ss

Examples related to java

Examples related to date

Examples related to string-parsing