Java temporal types,JDBC temporal types, Enumerated types,Serializable objects, Transient fields used in EJB
I would like to know Java temporal types,JDBC temporal types, Enumerated types,Serializable objects, Transient fields used in EJB. When, why, how, where we use them.Advantages, disadvantages of using them. I was not clear on this concept. Thanks in advance
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why Date is created under java.util but not under java.sql which surprises me. please advise
raed this, I believe it has anextended response this question:
http://stackoverflow.com/questions/2305973/java-util-date-vs-java-sql-date
http://stackoverflow.com/questions/2305973/java-util-date-vs-java-sql-date
Calendar, GergorianCalendar are newer classes which deal
much more cautiously with many subtle features
of operatiins with dates, espceailly those related tio TimeZones, differences between say standard time and daylight saving time, etcetc.
In my mind, these Claendars are less intuitive and more difficult to rememember - all rthe time
you need to checvk APIs
So if you are dealing with appliactionswhen time zones are some other subtle points are really crucial, you want
to use Calendar's. In practice at least with me it happend very rarely, so
dealing with Dates is usually fine
much more cautiously with many subtle features
of operatiins with dates, espceailly those related tio TimeZones, differences between say standard time and daylight saving time, etcetc.
In my mind, these Claendars are less intuitive and more difficult to rememember - all rthe time
you need to checvk APIs
So if you are dealing with appliactionswhen time zones are some other subtle points are really crucial, you want
to use Calendar's. In practice at least with me it happend very rarely, so
dealing with Dates is usually fine
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