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When do you use varargs in Java?
... fact that it may be called with an empty vararg! If you want to impose at least one argument, then you have to use an ugly trick such as:
void f(T arg1, T... args) {...}
I consider this trick ugly because the implementation of the method will be less straightforward than having just T... args in...
When is finally run if you throw an exception from the catch block?
...
This is not true. At least not for NET Core 3.1. A simple new console project with this code shows "in the finally" after the exception.
– emzero
Apr 1 at 16:04
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Finding three elements in an array whose sum is closest to a given number
... + A[k] must also be too high for every j' >= j, since A[j'] must be at least as big as A[j] and we're already too high. This means we can safely discard A[k] by setting k = k-1 and starting over.
– j_random_hacker
Oct 3 '12 at 18:36
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Is there a performance difference between i++ and ++i in C++?
... variable copy in the postfix case. A quick test with VC shows that it, at least, can do that in certain cases.
In the following example, the code generated is identical for prefix and postfix, for instance:
#include <stdio.h>
class Foo
{
public:
Foo() { myData=0; }
Foo(const Foo &...
Convert line-endings for whole directory tree (Git)
...h whitespace, quotes, or other shell meta characters in their path. At the least use find blog -type f -print0 | xargs -0 dos2unix to handle the case of whitespace. You have to use find's -exec instead of piping to avoid quotes, etc.. The dos2unix man page doesn't specify what its behavior is if you...
design a stack such that getMinimum( ) should be O(1)
...ed lists have other places you can borrow a bit from, for example in C the least significant bit of the next pointer, or in Java the type of the objects in the linked list. For Java this does mean there's more space used compared to a contiguous stack, as you have the object overhead per link:
publ...
How to detect a Christmas Tree? [closed]
...me and edited is solution after seeing mine using the same algorithm... at least he could have said "Yeah, I liked your solution and I reused it" there is nothing wrong, it is just a game.
– smeso
Jan 3 '14 at 12:57
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Declaring variables inside loops, good practice or bad practice?
...r message if the variable is by mistake referenced elsewhere.
Last but not least, some dedicated optimization can be performed more efficiently by the compiler (most importantly register allocation), since it knows that the variable cannot be used outside of the loop. For example, no need to store t...
Why not inherit from List?
...he current range of answer votes, but, as it is an SO post, this answer at least attempts to answer the C# (.NET) specific issues, even though there are definite general design issues.
– Mark Hurd
Feb 12 '14 at 2:10
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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...ed.
void foo() means you could (under some compilers) send parameters, at least if this is the declaration of your function rather than its definition.
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