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String.equals versus == [duplicate]
... on that.
if (usuario.equals(datos[0])) {
...
}
NB: the compare is done on 'usuario' because that's guaranteed non-null in your code, although you should still check that you've actually got some tokens in the datos array otherwise you'll get an array-out-of-bounds exception.
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Why start an ArrayList with an initial capacity?
... is achieved by having each reallocation increase the size of the array exponentially, typically by a factor of 1.5. With this approach, the total number of operations can be shown to be O(n).
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Best way to split string into lines
...hrow them away? (StringSplitOptions parameter) – use StringSplitOptions.None instead.
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When to use virtual destructors?
I have a solid understanding of most OOP theory but the one thing that confuses me a lot is virtual destructors.
17 Answe...
Signtool error: No certificates were found that met all given criteria with a Windows Store App?
...install the missing certificate. Alternatively you can always create a new one and use that!
– JDandChips
Mar 16 '16 at 10:32
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How to make a SIMPLE C++ Makefile
...
Since this is for Unix, the executables don't have any extensions.
One thing to note is that root-config is a utility which provides the right compilation and linking flags; and the right libraries for building applications against root. That's just a detail related to the original audience ...
Why is it impossible to override a getter-only property and add a setter? [closed]
...to break this contract and make it read-write.
I'm with Microsoft on this one.
Let's say I'm a new programmer who has been told to code against the Baseclass derivation. i write something that assumes that Bar cannot be written to (since the Baseclass explicitly states that it is a get only propert...
Android Studio Editor Font Sizing
...n Beta (a new Program) choosing too small or too large a Font, or choosing one that the Editor does not agree with, may make Text either unreadable or worse (cause a crash).
This is likely why the Setting says "not recommended". You do not want to have to edit the Program's settings with a Hex Edit...
What are valid values for the id attribute in HTML?
...ML 5 is even more permissive, saying only that an id must contain at least one character and may not contain any space characters.
The id attribute is case sensitive in XHTML.
As a purely practical matter, you may want to avoid certain characters. Periods, colons and '#' have special meaning in CS...
How do you add CSS with Javascript?
...stylesheet: external, embedded or empty, it doesn't matter. If there isn't one, the only standard way to create it at the moment is with createElement.
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