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How do you round a float to two decimal places in jruby

...ason, see comments), so that is the better solution if you are looking for string output. – Dylan Vander Berg Aug 6 '17 at 4:33 ...
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Convert generic List/Enumerable to DataTable?

...agnostics; public class MyData { public int A { get; set; } public string B { get; set; } public DateTime C { get; set; } public decimal D { get; set; } public string E { get; set; } public int F { get; set; } } static class Program { static void RunTest(List<MyData&g...
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Should I return a Collection or a Stream?

...ood example of this are the APIs in java.nio.file.Files: static Stream<String> lines(path) static List<String> readAllLines(path) Not only does readAllLines have to hold the entire file contents in memory in order to store it into the result list, it also has to read the file to t...
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How to configure socket connect timeout

... timeout.</param> public static void Connect(this Socket socket, string host, int port, TimeSpan timeout) { AsyncConnect(socket, (s, a, o) => s.BeginConnect(host, port, a, o), timeout); } /// <summary> /// Connects the specified socket. /// </summar...
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Is there any way to specify a suggested filename when using data: URI?

... var link = document.createElement('a'); if (typeof link.download === 'string') { link.href = uri; link.download = filename; //Firefox requires the link to be in the body document.body.appendChild(link); //simulate click link.click(); //remove the lin...
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Hamcrest compare collections

...), containsInAnyOrder("item1", "item2")); (Assuming that your list is of String, rather than Agent, for this example.) If you really want to call that same method with the contents of a List: assertThat(actual.getList(), containsInAnyOrder(expectedList.toArray(new String[expectedList.size()])); ...
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Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...ack-box was not customizable, it didn't support mini-dump files or Unicode strings, and it didn't have any server. In spite of these limitations, it was an excellent starting point because I knew exactly what kind of a tool I wanted. I started working on my own tool in the hope of making it flexible...
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How to use enums in C++

...es themselves don't have members. What you wrote is the equivalent to std::string.clear. std::string is a type, so you can't use . on it. You use . on an instance of a class. Unfortunately, enums are magical and so the analogy stops there. Because with a class, you can do std::string::clear to g...
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Why do most C developers use define instead of const? [duplicate]

...t with #ifdef to do conditional compilation based on its value, or use the stringizing operator # to get a string with its value. And as the compiler knows its value at compile time it may optimize code based on that value. For example: #define SCALE 1 ... scaled_x = x * SCALE; When SCALE is d...
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#1071 - Specified key was too long; max key length is 767 bytes

... MySQL assumes worst case for the number of bytes per character in the string. For the MySQL 'utf8' encoding, that's 3 bytes per character since that encoding doesn't allow characters beyond U+FFFF. For the MySQL 'utf8mb4' encoding, it's 4 bytes per character, since that's what MySQL calls actua...