大约有 40,700 项符合查询结果（耗时：0.0491秒） [XML]
Spring ApplicationContext - Resource leak: 'context' is never closed
...
Since the app context is a ResourceLoader (i.e. I/O operations) it consumes resources that need to be freed at some point. It is also an extension of AbstractApplicationContext which implements Closable. Thus, it's got a close() method and can be ...
Why should hash functions use a prime number modulus?
... until the integer type overflows.
[As an example, Java's string hashCode is eerily similar to this - it does the characters reverse order, with k=31. So you get striking relationships modulo 31 between strings that end the same way, and striking relationships modulo 2^32 between strings that are t...
Is nested function a good approach when required by only one function? [closed]
Let's say that a function A is required only by function B , should A be defined inside B?
12 Answers
...
Is there a CSS selector for elements containing certain text?
...
share
|
improve this answer
|
follow
|
answered Oct 5 '09 at 14:33
Dean JDean J
...
Passing arrays as parameters in bash
...
You can pass multiple arrays as arguments using something like this:
takes_ary_as_arg()
{
declare -a argAry1=("${!1}")
echo "${argAry1[@]}"
declare -a argAry2=("${!2}")
echo "${argAry2[@]}"
}
try_with_local_arys()
{
# array variables could have local scope
local d...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
What is the simplest/best way to ensure only one instance of a given script is running - assuming it's Bash on Linux?
14 An...
Is there any downside for using a leading double slash to inherit the protocol in a URL? i.e. src=“/
...h a double slash inherits the current protocol. Do all browsers support this technique?
6 Answers
...
How to use enums in C++
...
This code is wrong:
enum Days {Saturday, Sunday, Tuesday, Wednesday, Thursday, Friday};
Days day = Days.Saturday;
if (day == Days.Saturday)
Because Days is not a scope, nor object. It is a type. And Types themselves don't ha...
What does it mean when a CSS rule is grayed out in Chrome's element inspector?
...h indicates that a rule was overridden, but what does it mean when a style is grayed out?
8 Answers
...
Is there any way to check if iOS app is in background?
I want to check if the app is running in the background.
8 Answers
8
...