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Checking if a string is empty or null in Java [duplicate]
I'm parsing HTML data. The String may be null or empty, when the word to parse does not match.
5 Answers
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Programmer Puzzle: Encoding a chess board state throughout a game
Not strictly a question, more of a puzzle...
31 Answers
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What data type to use for hashed password field and what length?
I'm not sure how password hashing works (will be implementing it later), but need to create database schema now.
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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...Delphi开发，其参考代码来自网络上的Delphi例子，比如Mirror Driver。
本篇文章主要是Dokan开发过程的一些总结，所以不会对Dokan本身做介绍，与Dokan有关的资料及代码，请到google里搜索，或到Dokan的官方网站去下载(Dokan官网)，源码是...
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
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How to use SVN, Branch? Tag? Trunk?
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The subversion book is an excellent source of information on strategies for laying out your repository, branching and tagging.
See also:
Do you continue development in a branch or in the trunk
Branching strategies
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
Have we (as a community) had enough experience to determine when and/or whether auto is being abused?
6 Answers
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How can I check a C# variable is an empty string “” or null? [duplicate]
I am looking for the simplest way to do a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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Rename specific column(s) in pandas
...a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ?
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Why do I have to access template base class members through the this pointer?
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Short answer: in order to make x a dependent name, so that lookup is deferred until the template parameter is known.
Long answer: when a compiler sees a template, it is supposed to perform certain checks immediately, without s...