大约有 16,317 项符合查询结果（耗时：0.0338秒） [XML]
What are the underlying data structures used for Redis?
I'm trying to answer two questions in a definitive list:
3 Answers
3
...
Value of i for (i == -i && i != 0) to return true in Java
...
The only int value for which it works is Integer.MIN_VALUE.
It's because integers are negated using the two's complement way.
Using
System.out.println(Integer.toBinaryString(Integer.MIN_VALUE));
you see that Integer.MIN_VALUE is
10000000000000000000000000000000
Taki...
How to check if a user is logged in (how to properly use user.is_authenticated)?
I am looking over this website but just can't seem to figure out how to do this as it's not working. I need to check if the current site user is logged in (authenticated), and am trying:
...
Using PowerShell credentials without being prompted for a password
I'd like to restart a remote computer that belongs to a domain. I have an administrator account but I don't know how to use it from powershell.
...
JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
When running any java application, or just 'java', the jvm fails:
27 Answers
27
...
What is the best Java email address validation method? [closed]
What are the good email address validation libraries for Java? Are there any alternatives to commons validator ?
19 Answe...
git:// protocol blocked by company, how can I get around that?
Attempting something like git clone git://github.com/ry/node.git will not work, it results in:
7 Answers
...
Swift how to sort array of custom objects by property value
lets say we have a custom class named imageFile and this class contains two properties.
18 Answers
...
Calculating distance between two points, using latitude longitude?
Here's my try, it's just a snippet of my code:
9 Answers
9
...
Is it possible to declare two variables of different types in a for loop?
...rted in gcc and clang for years (since gcc-7 and clang-4.0) (clang live example). This allows us to unpack a tuple like so:
for (auto [i, f, s] = std::tuple{1, 1.0, std::string{"ab"}}; i < N; ++i, f += 1.5) {
// ...
}
The above will give you:
int i set to 1
double f set to 1.0
std::strin...