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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 Do You Clear The IRB Console?

... @fanaugen On MacOS, cmd+k will clear all within a terminal tap, if you use tmux to split area of the visual area, ctrl+L will do a better work. – Fan Yer May 19 '17 at 9:06 ...
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Convert NSDate to NSString

... How about... NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy"]; //Optionally for time zone conversions [formatter setTimeZone:[NSTimeZone timeZoneWithName:@"..."]]; NSString *stringFromDate = [formatter stringFromDate:myNSDateInstance]; ...
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how to ignore namespaces with XPath

...re sometimes client-generated i.e. unknown to me. Then i am left with basically three choices : 5 Answers ...
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PHP DOMDocument loadHTML not encoding UTF-8 correctly

... echo $dom->saveHTML(); This is not a great workaround, but since not all characters can be represented in ISO-8859-1 (like these katana), it's the safest alternative. share | improve this answ...
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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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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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Python List vs. Array - when to use?

... Basically, Python lists are very flexible and can hold completely heterogeneous, arbitrary data, and they can be appended to very efficiently, in amortized constant time. If you need to shrink and grow your list time-efficiently ...
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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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PHP expects T_PAAMAYIM_NEKUDOTAYIM?

... Not really. Test this var_dump(empty(TRUE)) – machineaddict Jun 5 '14 at 13:12 1 ...