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How do I check if a file exists in Java?

...m there is an issue with stale file handles: bugs.java.com/bugdatabase/view_bug.do?bug_id=5003595 It's kind of obscure, but has been the cause of some frustrating bugs in production code before. – CAW Mar 17 '17 at 22:17 ...
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How to change background color in android app

... but isn't it easier just to use the hex value? – the_prole Jun 21 '14 at 9:31 it would be very easy, but bad practice...
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reformat in vim for a nice column layout

...ion for this. Locate to the longest word and place cursor after it. Remove all the extra whitespace using dw and vertical movement. Example of this technique demonstrated below: I don't find myself needing to align things often enough to install another plugin, so this was my preferred way of a...
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JavaScript variable number of arguments to function

Is there a way to allow "unlimited" vars for a function in JavaScript? 11 Answers 11 ...
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C++ lambda with captures as a function pointer

... @KerrekSB put the global variables in a namespace and mark them as thread_local, that's the ftw approach I chose for solving something similar. – Kjell Hedström Apr 21 '14 at 15:08 ...
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How to check if a value exists in an array in Ruby

... Let me just note that internally, #include? still does perform looping. The coder is saved from writing the loop explicitly, though. I have added an answer that performs the task truly without looping. – Boris Stitnicky ...
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Using PowerShell to write a file in UTF-8 without the BOM

...coding = New-Object System.Text.UTF8Encoding $False [System.IO.File]::WriteAllLines($MyPath, $MyRawString, $Utf8NoBomEncoding) share | improve this answer | follow ...
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Difference between map and collect in Ruby?

I have Googled this and got patchy / contradictory opinions - is there actually any difference between doing a map and doing a collect on an array in Ruby/Rails? ...
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How to pass parameters in GET requests with jQuery

...ndle error } }); And you can get the data by (if you are using PHP) $_GET['ajaxid'] //gives 4 $_GET['UserID'] //gives you the sent userid In aspx, I believe it is (might be wrong) Request.QueryString["ajaxid"].ToString(); ...
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Including all the jars in a directory within the Java classpath

Is there a way to include all the jar files within a directory in the classpath? 25 Answers ...