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How to get just the parent directory name of a specific file
...
146
Use File's getParentFile() method and String.lastIndexOf() to retrieve just the immediate paren...
What is the difference between print and puts?
...already.
print does not add a new line.
For example:
puts [[1,2,3], [4,5,nil]] Would return:
1
2
3
4
5
Whereas print [[1,2,3], [4,5,nil]]
would return:
[[1,2,3], [4,5,nil]]
Notice how puts does not output the nil value whereas print does.
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Why should I use a pointer rather than the object itself?
...bject is safe to destroy when its scope ends.
– user743382
Mar 3 '14 at 12:03
25
Remember that s/...
构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...面缓存（http header中包含Expires Cache of Control，last modified(304，...一、 设计理念
1. 空间换时间
1) 多级缓存，静态化
客户端页面缓存（http header中包含Expires/Cache of Control，last modified(304，server不返回body，客户端可以继续用cache，...
When would you use delegates in C#? [closed]
... much sense.
– senfo
Feb 19 '09 at 14:47
3
I know what you're trying to say, but I would find the...
“register” keyword in C?
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344
It's a hint to the compiler that the variable will be heavily used and that you recommend it be...
How do you iterate through every file/directory recursively in standard C++?
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answered Sep 15 '08 at 21:44
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Why doesn't 'ref' and 'out' support polymorphism?
...iable of type Mammal.
Clearly we want to make that illegal.
Conclusion 4: out parameters cannot be made "larger".
Final conclusion: Neither ref nor out parameters may vary their types. To do otherwise is to break verifiable type safety.
If these issues in basic type theory interest you, cons...
Should you declare methods using overloads or optional parameters in C# 4.0?
I was watching Anders' talk about C# 4.0 and sneak preview of C# 5.0 , and it got me thinking about when optional parameters are available in C# what is going to be the recommended way to declare methods that do not need all parameters specified?
...