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How to subtract X day from a Date object in Java?
...a.util.Calendar, and java.text.SimpleTextFormat are now legacy, supplanted by the java.time classes. See Tutorial by Oracle.
– Basil Bourque
Aug 21 '17 at 0:50
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Where do you store your salt strings?
...nning the calculations for brute-forcing the hash), thus the argument that by knowing the salt someone could "generate a rainbow table" is spurious.
There's no real point in storing salts in a separate file as long as they're on a per-user basis - the point of the salt is simply to make it so that ...
How to apply !important using .css()?
...
The problem is caused by jQuery not understanding the !important attribute, and as such fails to apply the rule.
You might be able to work around that problem, and apply the rule by referring to it, via addClass():
.importantRule { width: 100px ...
psql: FATAL: Ident authentication failed for user “postgres”
...res 9.1 on Ubuntu 12.04. (Worked for postgres 9.3.9 on Ubuntu 14.04 too.)
By default, postgres creates a user named 'postgres'. We log in as her, and give her a password.
$ sudo -u postgres psql
\password
Enter password: ...
...
Logout of psql by typing \q or ctrl+d. Then we connect as 'postgres...
How to convert currentTimeMillis to a date in Java?
...ality you need. "Date date=new Date(millis);" provided in the other answer by user AVD is going to be the best route :)
– Dick Lucas
Jul 17 '15 at 18:15
1
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Rubymine: How to make Git ignore .idea files created by Rubymine
I use Rubymine for Rails projects. Very often, Rubymine makes changes in .idea/* files that I don't care about. But it keeps preventing me from checking out new branches, and makes my version of .idea/ different from my coworkers.
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What to learn for making Java web applications in Java EE 6? [closed]
...he Java EE 6 Web Profile (and then add things if you want to go further).
By doing this, 1) you'll get started and you'll learn brand new things and 2) you'll give some time to all other frameworks and/or tools to adapt and prove that there is still a need for them. And if there is, it will still b...
What is a servicebus and when do I need one?
...he OSI stack for Ethernet. With the bus, this is the client libraries used by application code.
Ultimately, you can view a service bus as providing the next higher level of abstraction for building distributed systems. You can use it also for client-server communication to give you durable one-way ...
Format LocalDateTime with Timezone in Java8
...ype (which does not contain any offset) with offset information (indicated by pattern symbol Z). So the formatter tries to access an unavailable information and has to throw the exception you observed.
Solution:
Use a type which has such an offset or timezone information. In JSR-310 this is eithe...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...e
$ sudo apt-get install tightvncserver
Install vncviewer on your laptop by downloading RealVNC (it supports multiple platforms)
http://www.realvnc.com/download/vnc/
To be able to copy & paste from VNC server <--> VNC viewer, you need to install autocutsel on your RPi.
$sudo apt-get i...