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Singleton with Arguments in Java
I was reading the Singleton article on Wikipedia and I came across this example:
20 Answers
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Entity Framework: There is already an open DataReader associated with this Command
...anding of this problem is that there are multiple data retrieval commands executed on single connection (or single command with multiple selects) while next DataReader is executed before first one has completed the reading. The only way to avoid the exception is to allow multiple nested DataReaders ...
How to position a DIV in a specific coordinates?
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Script its left and top properties as the number of pixels from the left edge and top edge respectively. It must have position: absolute;
var d = document.getElementById('yourDivId');
d.style.position = "absolute";
d.style.left = x_pos+'px';
d.style.top = y_pos+'px';
Or do i...
Breaking up long strings on multiple lines in Ruby without stripping newlines
... project, we often have strings that are a little bit longer - i.e. " User X wanted to send you a message about Thing Y " that doesn't always fit within the 80 character style limit.
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How to move the cursor word by word in the OS X Terminal
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Out of the box you can use the quite bizarre Esc+F to move to the beginning of the next word and Esc+B to move to the beginning of the current word.
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Linq to Entities - SQL “IN” clause
... user rights if it contains the current item's applicable value. This is exactly the same way you would find an item in a regular list in .NET.
There are two ways of doing this using LINQ, one uses query syntax and the other uses method syntax. Essentially, they are the same and could be used int...
How to check if a Ruby object is a Boolean
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class X; def !; self end end ; x = X.new ; !!x == x #=> true
– Alexey
Jun 7 '12 at 12:08
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How to enable cross-origin resource sharing (CORS) in the express.js framework on node.js
...while still providing static files from a public directory. I'm using the express.js and am not really sure how to allow cross-domain scripting ( Access-Control-Allow-Origin: * ).
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How to render a DateTime in a specific format in ASP.NET MVC 3?
...roperty of type DateTime how can I render it in a specific format - for example in the format which ToLongDateString() returns?
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How to set JAVA_HOME environment variable on Mac OS X 10.9?
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Literally all you have to do is:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
and restart your shell.
If you have multiple JDK versions installed and you want it to be a specific one, you can use the -v flag to java_home like so:
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