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Using two values for one switch case statement

...pression. The following code example, , displays the number of the month based on the value of the String named month: public class StringSwitchDemo { public static int getMonthNumber(String month) { int monthNumber = 0; if (month == null) { return monthNumbe...
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UIRefreshControl without UITableViewController

... On a hunch, and based on DrummerB's inspiration, I tried simply adding a UIRefreshControl instance as a subview to my UITableView. And it magically just works! UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init]; [refreshCont...
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Why is reading lines from stdin much slower in C++ than Python?

... to the top of your main, you should see much better performance: std::ios_base::sync_with_stdio(false); Normally, when an input stream is buffered, instead of reading one character at a time, the stream will be read in larger chunks. This reduces the number of system calls, which are typically re...
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Divide a number by 3 without using *, /, +, -, % operators

...3 + a/1000*3 + (..). In binary it's almost the same: 1 / 3 = 0.0101010101 (base 2), which leads to a / 3 = a/4 + a/16 + a/64 + (..). Dividing by 4 is where the bit shift comes from. The last check on num==3 is needed because we've only got integers to work with. – Yorick Sijsli...
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PostgreSQL error: Fatal: role “username” does not exist

... Use the operating system user postgres to create your database - as long as you haven't set up a database role with the necessary privileges that corresponds to your operating system user of the same name (h9uest in your case): sudo -u postgres -i As recommended here or here. Th...
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Plot two histograms on single chart with matplotlib

....show() Reference: http://matplotlib.org/examples/statistics/histogram_demo_multihist.html EDIT [2018/03/16]: Updated to allow plotting of arrays of different sizes, as suggested by @stochastic_zeitgeist share ...
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What is the use of the JavaScript 'bind' method?

... simply a matter of ross.getMonthlyFee(25). Was this example just to just demonstrate the use of bind(), or is there some advantage to your approach? – Darryl Jan 14 '15 at 16:59 ...
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Width equal to content [duplicate]

...s link for different techniques: http://css-tricks.com/all-about-floats/) Demo: http://jsfiddle.net/CvJ3W/5/ Edit If you go for the solution with display:inline-block but want to keep each item in one line, you can just add a <br> tag after each one: <div id="container"> <p>...
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javac is not recognized as an internal or external command, operable program or batch file [closed]

... CommonProgramFiles(x86)=C:\Program Files (x86)\Common Files CommonProgramW6432=C:\Program Files\Common Files ... The most important variable is PATH. It is a list of paths, separated by ;. When a command is entered into cmd, each directory in the list will be scanned for a matching executable. O...
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网

...图像】TaifunImage 拓展:图片压缩剪裁处理 【图像】SimpleBase64 拓展:图像Base64编解码传输 【图像】KIO4_Base64 拓展:更强大的图像Base64编解码工具,解码后的图像可写入到文件 【连接】MqttClient 拓展:轻量级物联网传输协议 ...