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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
I've seen mixed versions of this in a lot of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters.
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Unable to import a module that is definitely installed
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In my case, it is permission problem. The package was somehow installed with root rw permission only, other user just cannot rw to it!
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Why no love for SQL? [closed]
I've heard a lot lately that SQL is a terrible language, and it seems that every framework under the sun comes pre-packaged with a database abstraction layer.
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Difference between >>> and >>
What is the difference between >>> and >> operators in Java?
7 Answers
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How do I connect to this localhost from another computer on the same network?
...op connects to the localhost on the other. I am using XAMPP. How do I do this?
8 Answers
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Difference between clustered and nonclustered index [duplicate]
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You really need to keep two issues apart:
1) the primary key is a logical construct - one of the candidate keys that uniquely and reliably identifies every row in your table. This can be anything, really - an INT, a GUID, a string - pick what makes mos...
Is R's apply family more than syntactic sugar?
...d performance over other looping functions (e.g. for). One exception to this is lapply which can be a little faster because it does more work in C code than in R (see this question for an example of this).
But in general, the rule is that you should use an apply function for clarity, not for per...
When do you use the “this” keyword? [closed]
I was curious about how other people use the this keyword. I tend to use it in constructors, but I may also use it throughout the class in other methods. Some examples:
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Selecting only numeric columns from a data frame
Suppose, you have a data.frame like this:
11 Answers
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When do you use varargs in Java?
...t needs to deal with an indeterminate number of objects. One good example is String.format. The format string can accept any number of parameters, so you need a mechanism to pass in any number of objects.
String.format("This is an integer: %d", myInt);
String.format("This is an integer: %d and a ...