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How many String objects will be created when using a plus sign?

... I think a couple of errors might have slipped in there. Surely, ("C" + "D") + M()) generates String.Concat("CD", M()), not String.Concat(M(), "AB"). And further down, (M() + "E") + (null + M()) should generate String.Concat(M(), "E", M()), not S...
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How to nicely format floating numbers to String without unnecessary decimal 0?

...ding the output, and specifies that many. A common situation is small math errors have accumulated, so a value might be 12.000000034, but would prefer rounding to 12, and displaying compactly as "12". And "12.340000056" => "12.34". – ToolmakerSteve Sep 14 '1...
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Comparing Dates in Oracle SQL

...y the number of employees that are hired after June 20, 1994, But I get an error saying "JUN' invalid identifier. Please help, thanks! ...
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Composite Key with EF 4.1 Code First

...c int ActivityID { get; set; } [Key, Column(Order = 1)] [Required(ErrorMessage = "A ActivityName is required")] [StringLength(50, ErrorMessage = "Activity Name must not exceed 50 characters")] public string ActivityName { get; set; } } ...
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Including dependencies in a jar with Maven

... an empty src/main/webapp/WEB-INF/web.xml file, which will avoid a warning/error in the maven-build), that only has your jar-project as a dependency, and make your jar-project a <module> under your war-project. (This war-project is only a simple trick to wrap all your jar-file dependencies int...
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How to compare type of an object in Python?

... launch a long or resource-intensive process, it is valuable to catch type errors ahead of time, during some custom validation step. This has been a critical part of almost every scientific computing project I've ever worked on. Out of all dev projects I've seen, more have needed this than have not....
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Mockito test a void method throws an exception

...new Exception()) instead of doThrow(Exception.class), I have the following error when I launch my test ; Expected exception com.company.project.exception.ElementNotFoundException but got org.mockito.exceptions.base.MockitoException: – clement Jul 24 '15 at 8:21...
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Is there any way to delete local commits in Mercurial?

... an "hg pull" and an "hg update." When I try to push my changes, I get an error. 10 Answers ...
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JavaScript math, round to two decimal places [duplicate]

... They might've voted down because it's not really an error. Math.round() is meant to round to the nearest whole integer, and people generally frown upon and try not to change built-in methods like this in case someone is expecting that functionality to be like it was when they...
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Correct way to detach from a container without stopping it

... it returns me: Error response from daemon: Container f560a0ad6806150b2775d0b6e6d5f7065a03775bae858fb4fb7df05a277976db is not running – Webwoman Mar 1 '19 at 13:27 ...