大约有 45,000 项符合查询结果（耗时：0.0746秒） [XML]
What's the reason I can't create generic array types in Java?
...ve an array of runtime type T[]. It has an array of runtime type Object[], and either 1) the source code contains a variable of Object[] (this is how it is in the latest Oracle Java source); or 2) the source code contains a variable of type T[], which is a lie, but doesn't cause problems due to T be...
Making a div vertically scrollable using CSS
...bar can be triggered with any property overflow, overflow-x, or overflow-y and each can be set to any of visible, hidden, scroll, auto, or inherit. You are currently looking at these two:
auto - This value will look at the width and height of the box. If they are defined, it won't let the box expa...
Why can't I have “public static const string S = ”stuff"; in my Class?
...
const makes the variable constant and cannot be changed.
– Samuel
Jan 2 '09 at 22:39
6
...
Why aren't python nested functions called closures?
I have seen and used nested functions in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ?
...
How do I check if a string contains a specific word?
... or the boolean false if the needle isn't found. Since 0 is a valid offset and 0 is "falsey", we can't use simpler constructs like !strpos($a, 'are').
Edit:
Now with PHP 8 you can do this:
if (str_contains('How are you', 'are')) {
echo 'true';
}
RFC
str_contains
...
How to read from a file or STDIN in Bash?
...e following Perl script ( my.pl ) can read from either the file on the command line args or from STDIN:
15 Answers
...
Homebrew install specific version of formula?
...en two installed versions. (*)
If you have been using homebrew for longer and never removed older versions (using, for example brew cleanup), chances are that some older version of your program may still be around. If you want to simply activate that previous version, brew switch is the easiest way...
C library function to perform sort
Is there any library function available in C standard library to do sort?
7 Answers
7...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
Java 6's Arrays.sort method uses Quicksort for arrays of primitives and merge sort for arrays of objects. I believe that most of time Quicksort is faster than merge sort and costs less memory. My experiments support that, although both algorithms are O(n log(n)). So why are different algorithms us...
Split Strings into words with multiple word boundary delimiters
...task but I've found no reference on the web. I have text with punctuation, and I want a list of the words.
31 Answers
...