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How do I check if a file exists in Java?

...| edited Sep 7 '18 at 12:40 DVK 117k2828 gold badges194194 silver badges306306 bronze badges answered No...
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Running multiple AsyncTasks at the same time — not possible?

...n what version exactly they changed that. UPDATE: Here is what current (2012-01-27) API says on this: When first introduced, AsyncTasks were executed serially on a single background thread. Starting with DONUT, this was changed to a pool of threads allowing multiple tasks to operate in paralle...
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How to save all the variables in the current python session?

...rted modules can not be shelved. # print('ERROR shelving: {0}'.format(key)) my_shelf.close() To restore: my_shelf = shelve.open(filename) for key in my_shelf: globals()[key]=my_shelf[key] my_shelf.close() print(T) # Hiya print(val) # [1, 2, 3] ...
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How can I replace a newline (\n) using sed?

... jpp 124k2323 gold badges154154 silver badges204204 bronze badges answered Aug 9 '09 at 20:26 Zsolt BotykaiZsolt Botykai 44....
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jQuery validate: How to add a rule for regular expression validation?

...any regex is this: $("#Textbox").rules("add", { regex: "^[a-zA-Z'.\\s]{1,40}$" }) Additionally, it looks like there is a file called additional-methods.js that contains the method "pattern", which can be a RegExp when created using the method without quotes. Edit The pattern function is now t...
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CodeIgniter removing index.php from url

... 240 Try the following Open config.php and do following replaces $config['index_page'] = "index.php...
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Benchmarking small code samples in C#, can this implementation be improved?

...endingFinalizers(); GC.Collect(); watch.Start(); for (int i = 0; i < iterations; i++) { func(); } watch.Stop(); Console.Write(description); Console.WriteLine(" Time Elapsed {0} ms", watch.Elapsed.TotalMilliseconds); return watch.Elapsed.TotalMilliseconds; ...
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How to clean project cache in Intellij idea like Eclipse's clean?

...s folder depends on your OS and version installed. Windows Vista, 7, 8, 10 <SYSTEM DRIVE>\Users\<USER ACCOUNT NAME>\.<PRODUCT><VERSION> Linux/Unix ~/.<PRODUCT><VERSION> Mac OS ~/Library/Caches/<PRODUCT><VERSION> Read this for more details on cache...
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Define an 's src attribute in CSS [duplicate]

...r image's width*/ height: auto; /*or your image's height*/ margin: 0; padding: 0; } share | improve this answer | follow | ...
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list.clear() vs list = new ArrayList(); [duplicate]

...void clear() { modCount++; // Let gc do its work for (int i = 0; i < size; i++) elementData[i] = null; size = 0; } share | improve this answer | ...