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Round a double to 2 decimal places [duplicate]
...es: 27.987654321987 -> 27.99). But I guess it's best to avoid it, since more reliable ways are readily available, with cleaner code too.
So, use this instead
(Adapted from this answer by Louis Wasserman and this one by Sean Owen.)
public static double round(double value, int places) {
if ...
log4j vs logback [closed]
We are using log4j behind a selfmade wrapper. We plan to use much more features of it now.
6 Answers
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How bad is shadowing names defined in outer scopes?
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No big deal in your above snippet, but imagine a function with a few more arguments and quite a few more lines of code. Then you decide to rename your data argument as yadda but miss one of the places it is used in the function's body... Now data refers to the global, and you start having weir...
Is there a way to simulate the C++ 'friend' concept in Java?
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Call a “local” function within module.exports from another function in module.exports?
...level of indirection, and while it can be desirable sometimes, it makes it more complicated, to refactor, e.g. rename the function, of find usage of the function, etc.
– Pierre Henry
Sep 21 '15 at 14:48
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What's the strangest corner case you've seen in C# or .NET? [closed]
...llect a few corner cases and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible:
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twitter bootstrap typeahead ajax example
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why use get instead of getJSON ? It seems more appropriate.
– greg0ire
May 21 '13 at 10:10
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Decompile .smali files on an APK [duplicate]
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Captured variable in a loop in C#
...if you refer to variables in multiple scopes, but it works :)
Note that a more common occurrence of this problem is using for or foreach:
for (int i=0; i < 10; i++) // Just one variable
foreach (string x in foo) // And again, despite how it reads out loud
See section 7.14.4.2 of the C# 3.0 sp...
In Ruby, is there an Array method that combines 'select' and 'map'?
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