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When should I use the HashSet type?
... in every respect because they have the same membership, and membership is all that matters.
It's somewhat dangerous to iterate over a HashSet<T> because doing so imposes an order on the items in the set. That order is not really a property of the set. You should not rely on it. If order...
How can I have ruby logger log output to stdout as well as file?
...g.log", "a")
Logger.new MultiIO.new(STDOUT, log_file)
Every time Logger calls puts on your MultiIO object, it will write to both STDOUT and your log file.
Edit: I went ahead and figured out the rest of the interface. A log device must respond to write and close (not puts). As long as MultiIO re...
How to comment a block in Eclipse?
...t-\ in that case.
EDIT: It's Ctrl on a PC, but on a Mac the shortcuts may all be Cmd instead. I don't have a Mac myself, so can't easily check.
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C/C++ maximum stack size of program
...presents graph nodes) So assuming worst case, depth of recursive function calls can go upto 10000 with each call taking upto say 20 bytes. So is it feasible means is there a possibility of stackoverflow?
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Convert HTML + CSS to PDF [closed]
...ce. Significantly cheaper upfront costs, and usable without needing to install anything: docraptor.com
– Joel Meador
Jan 11 '11 at 8:31
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How to copy commits from one branch to another?
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You should really have a workflow that lets you do this all by merging:
- x - x - x (v2) - x - x - x (v2.1)
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x - x - x (wss)
So all you have to do is git checkout v2.1 and git merge wss. If for some reason you r...
How to install python3 version of package via pip on Ubuntu?
I have both python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
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How to automatically start a service when running a docker container?
I have a Dockerfile to install MySQL server in a container, which I then start like this:
11 Answers
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Create the perfect JPA entity [closed]
...nd your time on what's important.
Constructors: create a constructor with all required fields of the entity?
Constructor(s) for application logic, should have only a few critical "foreign key" or "type/kind" fields which will always be known when creating the entity. The rest should be set by call...
Should I call Close() or Dispose() for stream objects?
... StreamWriter etc implements IDisposable interface. That means, we can call Dispose() method on objects of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What if I call both?
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