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How do I compare strings in Java?
I've been using the == operator in my program to compare all my strings so far.
However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug.
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Doctrine2: Best way to handle many-to-many with extra columns in reference table
I'm wondering what's the best, the cleanest and the most simply way to work with many-to-many relations in Doctrine2.
14 A...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
内存调试技巧：C 语言最大难点揭秘au-memorytechniques本文将带您了解一些良好的和内存相关的编码实践，以将内存错误保持在控制范围内。内存错误是 C 和 C++ 编程的祸根：它们很普遍，认识其严重性已有二十多年，但始终没有彻...
What are OLTP and OLAP. What is the difference between them?
Actually what do they mean? All articles I find about them don't give me an idea, or my knowledge is too insufficient to understand it.
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What columns generally make good indexes?
As a follow up to " What are indexes and how can I use them to optimise queries in my database? " where I am attempting to learn about indexes, what columns are good index candidates? Specifically for an MS SQL database?
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Type erasure techniques
(With type erasure, I mean hiding some or all of the type information regarding a class, somewhat like Boost.Any.)
I want to get a hold of type erasure techniques, while also sharing those, which I know of. My hope is kinda to find some crazy technique that somebody thought of in his/her darkest h...
Multithreading: What is the point of more threads than cores?
I thought the point of a multi-core computer is that it could run multiple threads simultaneously. In that case, if you have a quad-core machine, what's the point of having more than 4 threads running at a time? Wouldn't they just be stealing time (CPU Resources) from each other?
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Can someone copyright a SQL query? [closed]
I work for a school district. Every year we have to export a list of students from our student management system and send it to a company that handles our online exams.
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How to avoid reverse engineering of an APK file?
...or Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file.
34 Answ...
Shorter syntax for casting from a List to a List?
I know its possible to cast a list of items from one type to another (given that your object has a public static explicit operator method to do the casting) one at a time as follows:
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