大约有 47,000 项符合查询结果（耗时：0.0728秒） [XML]
Is there a simple way to remove unused dependencies from a maven pom.xml?
... dependencies. Is there is a command which removes any unused dependencies from a pom?
5 Answers
...
How can a Java variable be different from itself?
...m.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but th...
Fundamental difference between Hashing and Encryption algorithms
...d a (usually) fixed length (or smaller length) output. It can be anything from a simple crc32, to a full blown cryptographic hash function such as MD5 or SHA1/2/256/512. The point is that there's a one-way mapping going on. It's always a many:1 mapping (meaning there will always be collisions) si...
ssh remote host identification has changed
...
ssh-keygen -R <host>
For example,
ssh-keygen -R 192.168.3.10
From ssh-keygen man page:
-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).
...
What is the best way to uninstall gems from a rails3 project?
...ng bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems.
...
How to use the 'main' parameter in package.json?
...
From the npm documentation:
The main field is a module ID that is the primary entry point to your
program. That is, if your package is named foo, and a user installs
it, and then does require("foo"), then your main mo...
How does the C code that prints from 1 to 1000 without loops or conditional statements work?
I've found C code that prints from 1 to 1000 without loops or conditionals :
But I don't understand how it works. Can anyone go through the code and explain each line?
...
Redis - Connect to Remote Server
...st to be sure.
After establishing it is listening where you expect it to, from a remote node which should have access try:
redis-cli -h REMOTE.HOST ping
You could also try that from the local host but use the IP you expect it to be listening on instead of a hostname or localhost. You should see ...
notifyDataSetChange not working from custom adapter
When I repopulate my ListView , I call a specific method from my Adapter .
11 Answers
...
What is the purpose of willSet and didSet in Swift?
... = 0 {
didSet {
print("The value of myProperty changed from \(oldValue) to \(myProperty)")
}
}
}
myProperty prints its old and new value every time it is modified. With just getters and setters, I would need this instead:
class Foo {
var myPropertyValue: Int = ...