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What does “@private” mean in Objective-C?
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It's a visibility modifier—it means that instance variables declared as @private can only be accessed by instances of the same class. Private members cannot be accessed by subclasses or other classes.
For example:
@interf...
Best practices for exception management in Java or C# [closed]
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It seems odd to me that you want to catch exceptions and turn them into error codes. Why do you think the caller would prefer error codes over exceptions when the latter is the default in both Java and C#?
As for your questi...
Fundamental difference between Hashing and Encryption algorithms
I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about:
1...
MVC Razor view nested foreach's model
...gt; model.Theme[themeIndex].Products[productIndex].Orders[orderIndex].Quantity)
@Html.TextAreaFor(model => model.Theme[themeIndex].Products[productIndex].Orders[orderIndex].Note)
@Html.EditorFor(model => model.Theme[themeIndex].Products[productIndex].Orders[orderIndex].Date...
Why does modern Perl avoid UTF-8 by default?
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use warnings;
use warnings qw( FATAL utf8 );
Declare that this source unit is encoded as UTF‑8. Although once upon a time this pragma did other things, it now serves this one singular purpose alone and no other:
use utf8;
Declare that anything that opens a filehandle within this lexical scope...
Why would you use Expression rather than Func?
... executing them. For example, LINQ to SQL gets the expression and converts it to the equivalent SQL statement and submits it to server (rather than executing the lambda).
Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a delegate which...
What is a NullPointerException, and how do I fix it?
...an object. Consider the following code where you declare a variable of primitive type int:
int x;
x = 10;
In this example, the variable x is an int and Java will initialize it to 0 for you. When you assign it the value of 10 on the second line, your value of 10 is written into the memory location r...
Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
I have seen this sort of thing used a lot, but I think it is rather strange...
Wouldn't it be much clearer to say while(true) , or something along those lines?
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When should I use C++14 automatic return type deduction?
With GCC 4.8.0 released, we have a compiler that supports automatic return type deduction, part of C++14. With -std=c++1y , I can do this:
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When to use inline function and when not to use it?
I know that inline is a hint or request to compiler and its used to avoid function call overheads.
14 Answers
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