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How to calculate the running time of my program? [duplicate]

... What is happening between the two calls to nanoTime has absolutely no impact. – krtek Aug 18 '15 at 12:06 10 ...
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Java abstract interface

... you, though. Other things you can explicitly state, but don't need to: call super() on the first line of a constructor extends Object implement inherited interfaces Is there other rules that applies with an abstract interface? An interface is already "abstract". Applying that keyword agai...
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Why use getters and setters/accessors?

...ame, person.lastName, person.isHuman, person.hasReallyCommonFirstName, and calls person.update(), which sends a query out to the database, etc. Oh, that's where your memory leak was occurring. Understanding a local piece of code at first glance is an important property of good readability that gett...
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Getting a random value from a JavaScript array

... @SapphireSun this is correct. Note the Math.floor(Math.random(...)) call, which rounds down. – ashes999 Jan 19 '14 at 12:43 34 ...
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... pieces will be holded on the socket * until ip_push_pending_frames() is called. Each piece can be a page * or non-page data. * * Not only UDP, other transport protocols - e.g. raw sockets - can use * this interface potentially. * * LATER: length must be adjusted by pad at tail, when i...
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What's the opposite of head? I want all but the first N lines of a file

... Use this, supposing the first sample is called sample1.dat then tail --lines=3 sample1.dat which would print all lines from the 3rd line to the last line. For the second sample, again suppose it is called sample2.dat it would be tail --lines=-1 sample2.dat which w...
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Gunicorn worker timeout error

...using flask without assynchronous support, so every request will block the call. To create async support without make difficult, add the gevent worker. With gevent, a new call will spawn a new thread, and you app will be able to receive more requests pip install gevent gunicon .... --worker-class ...
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What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]

...ta access API's layers like ODBC, OLE-DB and System.Data.SqlClient all call the (internal) stored procedure sp_reset_connection when re-using a connection from a connection pool. It does this to reset the state of the connection before it gets re-used, however nowhere is documented wha...
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How do I make HttpURLConnection use a proxy?

...t if you have different username/password pairs for the different proxies? Calling a static method to set the default Authenticator isn't ideal, this is not much better than setting the sys properties method.. – javaPhobic Apr 30 '15 at 0:56 ...
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How to check if mod_rewrite is enabled in php?

...se fallbacks to some other behaviour, it be useful to detect it programmatically. – kba Jun 2 '15 at 2:41  |  show 6 more comments ...