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How to convert currentTimeMillis to a date in Java?
... FYI, the terribly troublesome old date-time classes such as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle.
– Basil Bourque
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How to set java_home on Windows 7?
...bles, one for user variables and one for system variables. Both were named JAVA_HOME and both pointing to
18 Answers
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Adding n hours to a date in Java?
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cal.setTime(new Date()) is not needed - the javadoc of Calendar.getInstance() says: "The Calendar returned is based on the current time in the default time zone with the default locale."
– mithrandir
Dec 10 '14 at 9:54
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Environment variables for java installation
How to set the environment variables for Java in Windows (the classpath)?
14 Answers
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Java: getMinutes and getHours
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Try using Joda Time instead of standard java.util.Date classes. Joda Time library has much better API for handling dates.
DateTime dt = new DateTime(); // current time
int month = dt.getMonth(); // gets the current month
int hours = dt.getHourOfDay(); // gets...
javac is not recognized as an internal or external command, operable program or batch file [closed]
I am experiencing an error while trying to compile Java programs.
6 Answers
6
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Using getopts to process long and short command line options
...ample, here's an example of using GNU getopt, from a script of mine called javawrap:
# NOTE: This requires GNU getopt. On Mac OS X and FreeBSD, you have to install this
# separately; see below.
TEMP=`getopt -o vdm: --long verbose,debug,memory:,debugfile:,minheap:,maxheap: \
-n 'javawr...
'Java' is not recognized as an internal or external command
When trying to check the current version of Java in which I am running, I received the error "java is not recognized as an internal or external command, operable program or batch file.".
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Java: Why is the Date constructor deprecated, and what do I use instead?
I come from the C# world, so not too experienced with Java yet. I was just told by Eclipse that Date was deprecated:
14 A...
Eclipse Workspaces: What for and why?
...provide you with my vision of somebody who feels very uncomfortable in the Java world, which I assume is also your case.
What it is
A workspace is a concept of grouping together:
a set of (somehow) related projects
some configuration pertaining to all these projects
some settings for Eclipse itself...