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Keyboard shortcut to “untab” (move a block of code to the left) in eclipse / aptana?
...ce_Guidelines#Standard_Accelerators
You'll find many of the more esoteric ones here:
http://wiki.eclipse.org/FAQ_What_editor_keyboard_shortcuts_are_available%3F
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RAII and smart pointers in C++
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// No need to close it - destructor will do that for us
This cannot be done in Java since there's no guarantee when the object will be destroyed, so we cannot guarantee when a resource such as file will be freed.
Onto smart pointers - a lot of the time, we just create objects on the stack. For i...
How to calculate a Mod b in Casio fx-991ES calculator
Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
10 Answers
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HTTP authentication logout via PHP
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Mu. No correct way exists, not even one that's consistent across browsers.
This is a problem that comes from the HTTP specification (section 15.6):
Existing HTTP clients and user agents typically retain authentication
information indefinitely. HTTP/1.1...
How do I test if a variable is a number in Bash?
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One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re ]] ; then
echo "error: Not a number" >&2; exit 1
fi
If the value is not necessarily an integer, consider amending the...
design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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iPhone: Detecting user inactivity/idle time since last screen touch
...t exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.'".. is anything else i need to do...?
– Mihir Mehta
Jun 23 '10 at 6:42
7
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Best way to convert an ArrayList to a string
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ArrayList<String> list = new ArrayList<String>();
list.add("one");
list.add("two");
list.add("three");
String listString = "";
for (String s : list)
{
listString += s + "\t";
}
System.out.println(listString);
In fact, a string concatenation is going to be just fine, as the ja...
What is the purpose of “return await” in C#?
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There is one sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task...
Is it correct to use JavaScript Array.sort() method for shuffling?
... the algorithm, pick a random unshuffled element (which could be the first one) and swap it with the first unshuffled element - then treat it as shuffled (i.e. mentally move the partition to include it).
This is O(n) and only requires n-1 calls to the random number generator, which is nice. It also ...