大约有 10,158 项符合查询结果（耗时：0.0420秒） [XML]
Immutable vs Mutable types
I'm confused on what an immutable type is. I know the float object is considered to be immutable, with this type of example from my book:
...
Simple insecure two-way data “obfuscation”?
I'm looking for very simple obfuscation (like encrypt and decrypt but not necessarily secure) functionality for some data. It's not mission critical. I need something to keep honest people honest, but something a little stronger than ROT13 or Base64 .
...
Why is f(i = -1, i = -1) undefined behavior?
I was reading about order of evaluation violations , and they give an example that puzzles me.
11 Answers
...
Is it worth hashing passwords on the client side
When I want to put a login system in place, I always compare the MD5 of the given password with its value in the users table on the server side.
...
How to access outer class from an inner class?
I have a situation like so...
11 Answers
11
...
What are the obj and bin folders (created by Visual Studio) used for?
I created a new project in Visual Studio 2010 and noticed that there are now two new folders named obj and bin in my project directory.
...
Does name length impact performance in Redis?
I like to use verbose names in Redis, for instance set-allBooksBelongToUser:$userId .
4 Answers
...
std::next_permutation Implementation Explanation
I was curious how std:next_permutation was implemented so I extracted the the gnu libstdc++ 4.7 version and sanitized the identifiers and formatting to produce the following demo...
...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
What is the difference between:
8 Answers
8
...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not
found. When I cd to the directory holding the script the script runs. So what good is the
PYTHONPATH?
...