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What is the significance of load factor in HashMap?
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edited Jun 20 at 9:12
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answered Jun 5 '12 at 17:17
NPENPE
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What is the point of a private pure virtual function?
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The question in the topic suggest a pretty common confusion. The confusion is common enough, that C++ FAQ advocated against using private virtuals, for a long time, because confusion seemed to be a bad thing.
So to get rid of the confusion first: Yes, private virtual...
When do you use Java's @Override annotation and why?
...de a method for two benefits. Do it so that you can take advantage of the compiler checking to make sure you actually are overriding a method when you think you are. This way, if you make a common mistake of misspelling a method name or not correctly matching the parameters, you will be warned tha...
What requirement was the tuple designed to solve?
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When writing programs it is extremely common to want to logically group together a set of values which do not have sufficient commonality to justify making a class.
Many programming languages allow you to logically group together a set of otherwise unrelated v...
How can I check if a program exists from a Bash script?
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Answer
POSIX compatible:
command -v <the_command>
Example use:
if ! command -v COMMAND &> /dev/null
then
echo "COMMAND could not be found"
exit
fi
For Bash specific environments:
hash <the_command> # For regul...
When to use Common Table Expression (CTE)
I have begun reading about Common Table Expression and cannot think of a use case where I would need to use them. They would seem to be redundant as the same can be done with derived tables. Is there something I am missing or not understanding well? Can someone give me a simple example of limitati...
How can I propagate exceptions between threads?
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What are the differences between “generic” types in C++ and Java?
...In C++ generic functions/classes can only be defined in headers, since the compiler generates different functions for different types (that it's invoked with). So the compilation is slower. In Java the compilation doesn't have a major penalty, but Java uses a technique called "erasure" where the gen...
Proper way to rename solution (and directories) in Visual Studio
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What's the difference between a single precision and double precision floating point operation?
...hat format the program is using to represent floating-point values.
Most computers use a standard format known as the IEEE floating-point format.
The IEEE double-precision format actually has more than twice as many bits of precision as the single-precision format, as well as a much greater ran...