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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 ...
What does PHP keyword 'var' do?
...just direct me to where I can read about this, if you haven't got time to explain.
8 Answers
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Check for installed packages before running install.packages() [duplicate]
...s on different computers. One of its lines contains the install.packages("xtable") command.
16 Answers
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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.
share
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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...
廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nd check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@gfs_2 ~]# ssh-keygen -t rsa -P ''
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Your identification has been saved in /root/.s...
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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Android: How can I pass parameters to AsyncTask's onPreExecute()?
... can override the constructor. Something like:
private class MyAsyncTask extends AsyncTask<Void, Void, Void> {
public MyAsyncTask(boolean showLoading) {
super();
// do stuff
}
// doInBackground() et al.
}
Then, when calling the task, do something like:
new MyA...