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Stopwatch vs. using System.DateTime.Now for timing events [duplicate]

I wanted to track the performance of my code so I stored the start and end time using System.DateTime.Now . I took the difference between the two as the time my code to execute. ...
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In Python, how do I split a string and keep the separators?

... It's seriously underdocumented. I've been using Python for 14 years and only just found this out. – smci Jun 19 '13 at 16:33 21 ...
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What is the X-REQUEST-ID http header?

... this subject, read various articles about this header, its use in Heroku, and projects based on Django. 4 Answers ...
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FixedThreadPool vs CachedThreadPool: the lesser of two evils

...similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ". ...
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How can I read and parse CSV files in C++?

I need to load and use CSV file data in C++. At this point it can really just be a comma-delimited parser (ie don't worry about escaping new lines and commas). The main need is a line-by-line parser that will return a vector for the next line each time the method is called. ...
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What does Serializable mean?

...that if implemented in a class, this class can automatically be serialized and deserialized by different serializers. share | improve this answer | follow | ...
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Emacs - Multiple columns one buffer

.... I'd like to be able to use some of the acres of horizontal space I have and see more code on-screen at one time. Is there a method for getting Emacs (or indeed another editor) to show me multiple columns all pointing to the same buffer? ...
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Best way to make Java's modulus behave like it should with negative numbers?

... of the negative values of a, since (a % b) is a negative value between -b and 0, (a % b + b) is necessarily lower than b and positive. The last modulo is there in case a was positive to begin with, since if a is positive (a % b + b) would become larger than b. Therefore, (a % b + b) % b turns it in...
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How can I shrink the drawable on a button?

... You should use a ImageButton and specify the image in android:src, and set android:scaletype to fitXY Setting scaled drawable in code Drawable drawable = getResources().getDrawable(R.drawable.s_vit); drawable.setBounds(0, 0, (int)(drawable.getIntrins...
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How to make Java honor the DNS Caching Timeout?

We use GSLB for geo-distribution and load-balancing. Each service is assigned a fixed domain name. Through some DNS magic, the domain name is resolved into an IP that's closest to the server with least load. For the load-balancing to work, the application server needs to honor the TTL from DNS respo...