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Copying a HashMap in Java
...ew HashMap<Integer,myObject>(myobjectListA);
This will create a (shallow) copy of the map.
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Mercurial for Beginners: The Definitive Practical Guide
...configure it to ignore files?
Ignore is configured in a normal text file called .hgignore in the root of your repository. Add it just like a normal file with:
hg add .hgignore
There are two syntax options available for file matching, glob and regexp. glob is unix-like filename expansion and rege...
Storyboard warning: prototype table cells must have reuse identifiers
... If you have more than 1 prototype cells, you must give them all an indetifier, else just set the number to one in the prototype cell
– user1700737
Oct 21 '14 at 12:26
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Make .git directory web inaccessible
...taccess file in the .git folder and put the following in this file:
Order allow,deny
Deny from all
But note, that it would be lost if you ever re-cloned the repository
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How do shift operators work in Java? [duplicate]
...s, shifting is shorter/more efficient than converting an int to a double, calling Math.pow() and converting back to an int.) It's also useful for transforming an int value from signed (Java) to an unsigned equivalent (C/C++; Java doesn't have unsigned types, which is one of its shortcomings).
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What are the dark corners of Vim your mom never told you about? [closed]
...en copy it back again.
You obviously have to be on a system with sudo installed and have sudo rights.
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Why isn't vector a STL container?
... avoid vector <bool> as it's not an STL container and it doesn't really hold bool s.
6 Answers
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python max function using 'key' and lambda expression
... def. Thus, you can't use statements inside a lambda, only expressions are allowed.
What does max do?
max(a, b, c, ...[, key=func]) -> value
With a single iterable argument, return its largest item. With two or
more arguments, return the largest argument.
So, it simply returns the...
What is the worst real-world macros/pre-processor abuse you've ever come across?
... I think programmers (myself included) would be a lot more fit if we all did 10 pushups every time a compiler found an error in our code. This might also reduce the occurrence of testing by compilation.
– MikeyB
Jun 25 '09 at 19:52
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Removing duplicates in lists
...g a dictionary first, and then creating a list from it. If you don’t actually need to preserve the order, you’re often better off using a set, especially because it gives you a lot more operations to work with. Check out this question for more details and alternative ways to preserve the order w...