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1 How do you calculate log base 2 in Java for integers?
2010年07月22 - I use the following function to calculate log base 2 for integers: 我用下面的函数来计算整数的log以2为底: public static int log2(int n){ if(n <= 0) throw new
2 Big O, how do you calculate/approximate it?
2008年08月06 - performance.1 大多数拥有CS学位的人肯定知道Big O代表什么。它帮助我们衡量一个算法的效率是怎样的,如果你知道你想解决的问题是什么,你就能弄明白,是否仍然有可能挤出一点额外的性能。 But I'm curious, how do you calculate or approximate
3 How do you clear the SQL Server transaction log?
2008年09月11 - in size, but the transaction log definitely is. How do I clear out the transaction log? 我不是SQL专家,每当我需要做一些超出基础的事情时,我就会想起这个事实。我有一个大小不太大的测试数据库,但是事务日志肯定是。如何清除事务
4 How do you log server errors on django sites
2008年10月26 - scroll, email the log to me every hour or something like this. 但是在生产网站上,我宁愿使用DEBUG=False,并向访问者展示一些标准的错误500页,其中有我正在修复这个bug的信息;同时我想有一些日志记录所有这些信息的方式(堆栈跟踪和请求信息
5 How do you print out a stack trace to the console/log in Cocoa?
2008年10月20 - I'd like to log the call trace during certain points, like failed assertions, or uncaught exceptions. 我希望在某些点上记录调用跟踪,比如失败的断言,或未捕获的异常。
6 How do I generate random integers within a specific range in Java?
2008年12月12 - How do I generate a random int value in a specific range? 如何在特定的范围内生成一个随机的int值? I have tried the following, but those do not work: 我试过以下方法,但这些都不
7 How do I compare two Integers? [duplicate]
2009年12月09 - This question already has an answer here: 这个问题已经有了答案: How to properly compare two Integers in Java? 7 answers 如何正确地比较Java中的两个整数?7的答案
8 How do you find all subclasses of a given class in Java?
2009年01月29 - How does one go about and try to find all subclasses of a given class (or all implementors of a given interface) in Java? As of now, I have a method
9 How do I calculate percentiles with python/numpy?
2010年03月03 - Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? 是否有一种方便的方法来计算序列或一维numpy数组的百分位数? I am looking
10 Java: How do you convert a UTC timestamp to local time?
2012年09月19 - are you supposed to do this? I've been using the following code without much success: 我在UTC时间戳的,我想把它转换成当地时间不使用这样一个API调用TimeZone.getTimeZone(PST)。你应该如何做

 
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