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How to convert String to long in Java?
I got a simple question in Java: How can I convert a String that was obtained by Long.toString() to long ?
9 Answers
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What happens to an open file handle on Linux if the pointed file gets moved or deleted
...lug) then the file handle won't be valid any more and is likely to give IO/error on any operation. You still have to close it though. This is going to be true even if the device is plugged back in, as it's not sensible to keep a file open in this case.
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What is a Python equivalent of PHP's var_dump()? [duplicate]
...ort.
– Paul Biggar
Dec 21 '09 at 18:05
yep, var_export in php and repr in python are somewhat related - that's if you ...
How does generic lambda work in C++14?
...= [](auto a) { return a; };
int main() {}
With g++ 4.7:
prog.cpp:1:24: error: parameter declared ‘auto’
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However, the way it might be implemented in C++14 as per the Portland proposal for generic lambdas:
[](const& x, & y){ return x + y; }
This would yield for the biggest p...
Count all occurrences of a string in lots of files with grep
I have a bunch of log files. I need to find out how many times a string occurs in all files.
15 Answers
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Pull to refresh UITableView without UITableViewController
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edited Dec 20 '17 at 11:05
answered Feb 21 '13 at 19:29
B...
Add an element to an array in Swift
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Error: Value of type 'Array<Element>' has no member 'appendContentsOf'
– Dani Kemper
Oct 17 '18 at 22:55
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Postgres: How to do Composite keys?
I cannot understand the syntax error in creating a composite key. It may be a logic error, because I have tested many varieties.
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How do I list the symbols in a .so file
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answered Jan 6 '18 at 0:05
user7610user7610
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初创公司如何利用社交媒体实现营销效果最大化？ - 资讯 - 清泛网 - 专注C/C...
...首先要评估一下自己的能力，不妨来看看下面这几类：
l 每周有多少时间可以花在社交媒体管理上：时间非常重要，因此你需要了解自己应该优先处理哪些社交媒体，有多少渠道要去管理。高效的社交媒体管理意味着重要的工...