Is "GMT" an Abbreviation in Java TimeZone and if So is it OK to use it? -

-

according javadoc timezone...

id - id timezone, either abbreviation such "pst", full name such "america/los_angeles", or custom id such "gmt-8:00". note support of abbreviations jdk 1.1.x compatibility , full names should used.

the important point being...

an abbreviation such "pst" , note support of abbreviations jdk 1.1.x compatibility , full names should used.

does mean "gmt-0:00" ok "gmt" should avoided or "gmt" not considered abbreviation?

similar other question trying make more specific.

just looked @ source code. if read correctly, gettimezone(string id) calls private method called parsecustomtimezone, checks if id starts gmt , returns null otherwise in case gettimezone falls default timezone gmt+ 0. things utc, pst, etc. supported in zoneinfo, sun internal class. can list available timezones javadoc mentions. here's bits of code relevant in timezone:

public static synchronized timezone gettimezone(string id) {     return gettimezone(id, true); } ... private static timezone gettimezone(string id, boolean fallback) {     timezone tz = zoneinfo.gettimezone(id);     if (tz == null) {         tz = parsecustomtimezone(id);         if (tz == null && fallback) {             tz = new zoneinfo(gmt_id, 0);         }     }     return tz; } ... private static final timezone parsecustomtimezone(string id) {     int length;      // error if length of id isn't long enough or id doesn't     // start "gmt".     if ((length = id.length()) < (gmt_id_length + 2) ||         id.indexof(gmt_id) != 0) {         return null;     }     ...

if on java 8, pretty want not use , instead use new time api. otherwise, use joda time.


Comments

Post a Comment

Popular posts from this blog

javascript - how to protect a flash video from refresh？ -

-
<!doctype html> <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>flash video refresh</title> </head> <body> <div id="playerzone"><embed height="496" width="580" flashvars="flvid=19742822&amp;createtime=2012-4-19 13:46:33" wmode="opaque" allowscriptaccess="always" allowfullscreen="true" quality="high" bgcolor="#000000" name="player" id="player" src="swf/mine.swf" type="application/x-shockwave-flash"></div> <a onclick="return test();" id="test">click me popup div,and hide scrollbar</a> </body> the code upon： for example,when click a#test button,popup div,it's no problem,but want hide scrollbar while div popup. i used $('html').css('overflow','hidden') in...
Read more

visual studio 2010 - Connect to informix database windows form application -

-
i trying figure out how connect ibm informix database. have been doing research , have found threads 5 years ago examples not working. i have installed latest sdk ibm informix. i have included ibm.data.informix.dll references in project. i have included using ibm.data.informix; i adding button , on click testing conenction. debug error "sql0035n file "c:\users\adam\documents\visual studio 2010\projects\test\test\msg\en_us\db2nmp.xml" cannot opened." this file not exist , dont see anywhere in program files (x86)\ibm informix client sdk directory. my on click code is private void button1_click(object sender, eventargs e) { const string host = "192.168.obfuscated"; const string servicenum = "1525"; //port? const string server = "serverobfuscated"; const string database = "dbobfuscatedy"; const string user = "myusername"; const string password = ...
Read more

android - Associate same looper with different threads -

-
Image
in application, want create multiple threads working on single queue. create queue know need call looper.prepare() . i want other threads create should associated looper created first thread, how can achieve this? use 1 of java thread safe queue class java.util.concurrent package instead of looper achieve goal. it's more common practice. share queue between threads , post task queue entry 1 thread can entry thread. blockingqueue can - in 1 thread call take() , block thread until thread put() entry queue. that's all. producer consumer pattern example blockingqueue or concurrentlinkedqueue about blockingqueue
Read more