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What exactly is Java EE?
...ed application servers, like WildFly, TomEE, GlassFish, Liberty, WebLogic, etc. There are also servlet containers which implement only the JSP/Servlet part of the huge Java EE API, such as Tomcat, Jetty, etc.
We, Java EE developers, should write code utilizing the specification (i.e. import only jav...
How can I build XML in C#?
... advantage of mapping directly to an object model. In .NET 3.5, XDocument, etc. are also very friendly. If the size is very large, then XmlWriter is your friend.
For an XDocument example:
Console.WriteLine(
new XElement("Foo",
new XAttribute("Bar", "some & value"),
new XEle...
Difference between CC, gcc and g++?
...erms of assembly
code generation, available libraries, language features, etc.?
3 Answers
...
Why does sudo change the PATH?
...d binary folders in
the PATH. Having already added my
requirements to /etc/environment I was
surprised when I got errors about
missing commands when running them
under sudo.....
I tried the following to fix this
without sucess:
Using the "sudo -E" option - did not work. My ...
Open Redis port for remote connections
...the bind option to allow remote access on the redis server?
Before (file /etc/redis/redis.conf)
bind 127.0.0.1
After
bind 0.0.0.0
and run sudo service redis-server restart to restart the server. If that's not the problem, you might want to check any firewalls that might block the access.
Imp...
How to access array elements in a Django template?
...ss individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array.
...
Any reason to write the “private” keyword in C#?
...e in C# (meaning that if I don't write public , protected , internal , etc. it will be private by default). (Please correct me if I am wrong.)
...
Android View.getDrawingCache returns null, only null
...d. All attempts then, using view.getWidth(), view.getLayoutParams().width, etc., including view.getDrawingCache() and view.buildDrawingCache(), are useless.
So, you need first to set dimensions to the view, e.g.:
view.layout(0, 0, width, height);
(You have already set 'width' and 'height' as you ...
Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...le
Run swapon /swapfile
Add this line /swapfile swap swap defaults 0 0 to /etc/fstab
Step 4 is needed if you would like to automatically enable swap file after each reboot.
Some useful command related to SWAP space:
$ swapon -s
$ free -k
$ swapoff -a
$ swapon -a
References:
http://www.thegee...
What is the use of the @ symbol in PHP?
...erator). It makes PHP suppress any error messages (notice, warning, fatal, etc) generated by the associated expression. It works just like a unary operator, for example, it has a precedence and associativity. Below are some examples:
@echo 1 / 0;
// generates "Parse error: syntax error, unexpected ...