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java: ArrayList - how can i check if an index exists?
...is is what you need ...
public boolean indexExists(final List list, final int index) {
return index >= 0 && index < list.size();
}
Why not use an plain old array? Indexed access to a List is a code smell I think.
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Reusable library to get human readable version of file size?
...l this iteration on this "too small a task" were captured and encapsulated into a library with tests.
– fess .
Feb 27 '16 at 22:03
6
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Optimising Android application before release [closed]
...
At some point you are going to get to the point where using known tricks will hit their limits. The best thing to do at this point is profile your code and see what areas are the bottle-necks based on your specific requirements.
Inves...
How can I create tests in Android Studio?
Just downloaded Android Studio which is based off of the Intellij Idea.
12 Answers
12
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What is the difference between const and readonly in C#?
...lass defined in AssemblyA.
public class Const_V_Readonly
{
public const int I_CONST_VALUE = 2;
public readonly int I_RO_VALUE;
public Const_V_Readonly()
{
I_RO_VALUE = 3;
}
}
AssemblyB references AssemblyA and uses these values in code. When this is compiled,
in the case of the ...
C/C++ line number
...processing, they are replaced respectively by a constant string holding an integer representing the current line number and by the current file name.
Others preprocessor variables :
__func__ : function name (this is part of C99, not all C++ compilers support it)
__DATE__ : a string of form "Mmm d...
Conveniently Declaring Compile-Time Strings in C++
...require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(my_string[4] == 'o', "");
constexpr str_const my_other_string = my_string;
static_asse...
Find running median from a stream of integers
... data is a tough problem, and finding an exact solution with memory constraints efficiently is probably impossible for the general case. On the other hand, if the data has some characteristics we can exploit, we can develop efficient specialized solutions. For example, if we know that the data is an...
How to reliably guess the encoding between MacRoman, CP1252, Latin1, UTF-8, and ASCII
...ct thing would be to guess the encoding, then use the native2ascii tool to convert all non-ASCII characters to Unicode escape sequences.
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reducing number of plot ticks
I have too many ticks on my graph and they are running into each other.
7 Answers
7
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