Java getHours getMinutes and getSeconds

Question

As I know getHours    getMinutes   and getSeconds   are all deprecated in Java and they are replaced with Calendar HOUR OF DAY  Calendar MINUTE  Calendar SECOND   These will in fact return the hour  minute and second for that particular moment  However  I would want to retrieved the hours and minutes from a Date variable  For instance   say the time retrieved from database is   time   Thu Jan 01 09 12 18 CET 1970   int hours   time getHours    int minutes   time getMinutes    int seconds   time getSeconds      By retrieving the hours  minutes  and seconds  I get  hours   9 minutes   12 seconds   18   So  how do I use Calendar for this function  Although the getHours   has been deprecated but it still worked  I would still like to know if there is an alternative to this

User · Answer

Try this   Calendar calendar   Calendar getInstance    calendar setTime yourdate   int hours   calendar get Calendar HOUR OF DAY   int minutes   calendar get Calendar MINUTE   int seconds   calendar get Calendar SECOND     Edit   hours  minutes  seconds   above will be the hours  minutes and seconds after converting yourdate to System Timezone

User · Answer

Java 8      System out println LocalDateTime now   getHour              7     System out println LocalDateTime now   getMinute            45     System out println LocalDateTime now   getSecond            32   Calendar  System out println Calendar getInstance   get Calendar HOUR OF DAY        7  System out println Calendar getInstance   get Calendar MINUTE             45 System out println Calendar getInstance   get Calendar SECOND             32   Joda Time      System out println new DateTime   getHourOfDay             7     System out println new DateTime   getMinuteOfHour          45     System out println new DateTime   getSecondOfMinute        32   Formatted  Java 8         07 48 55 056     System out println ZonedDateTime now   format DateTimeFormatter ISO LOCAL TIME           7 48 55     System out println LocalTime now   getHour           LocalTime now   getMinute           LocalTime now   getSecond             07 48 55     System out println new SimpleDateFormat  HH mm ss   format Calendar getInstance   getTime              074855     System out println new SimpleDateFormat  HHmmss   format Calendar getInstance   getTime              07 48 55      System out println new Date   toString   substring 11  20

User · Answer

For a time difference  note that the calendar starts at 01 01 1970  01 00  not at 00 00  If you re using java util Date and java text SimpleDateFormat  you will have to compensate for 1 hour   long start   System currentTimeMillis    long end   start    1 3600   23 60   45    1000   678     1 h 23 min 45 678 s Date timeDiff   new Date end - start - 3600000      compensate for 1h in millis SimpleDateFormat timeFormat   new SimpleDateFormat  H mm ss SSS    System out println  Duration      timeFormat format timeDiff      This will print   Duration  1 23 45 678

[java] Java getHours(), getMinutes() and getSeconds()

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