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Java string to date conversion

...tern seems valid. Here's an extract of relevance from the javadoc, listing all available format patterns: Letter Date or Time Component Presentation Examples ------ ---------------------- ------------------ ------------------------------------- G Era designator Text ...
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How to hash some string with sha256 in Java?

... SHA-256 isn't an "encoding" - it's a one-way hash. You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a strin...
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UPDATE multiple tables in MySQL using LEFT JOIN

I have two tables, and want to update fields in T1 for all rows in a LEFT JOIN. 5 Answers ...
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Prevent browser caching of AJAX call result

...t, myself. Of course ?cache could be any wording that the API doesn't actually want. – doubleJ Jul 10 '13 at 4:15 1 ...
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Add swipe to delete UITableViewCell

... @lase You might want to take a peek at an app called Dash. It enables you to search documentation and it's a lot snappier than browsing the web. It's also stored locally on your computer, so you don't need web access to look stuff up. You can also load up documentation fo...
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How to add http:// if it doesn't exist in the URL?

...hat went on a swim and came back as a fish with the mindset to stop you at all costs from doing and things that might hurt you. There are so many people in the world, and you know, you have this incredible ideas and what you think is missing is motivation, But that is not true. because the way that ...
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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes

...and updating the model values (EditableValueHolder components only) and finally invoke the queued ActionEvent (ActionSource components only). JSF will skip processing of all other components which are not covered by process attribute. Also, components whose rendered attribute evaluates to false duri...
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Determine if variable is defined in Python [duplicate]

...ime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby. ...
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Javascript object Vs JSON

...ort these, you should include json2.js. If you're using jQuery, you can call jQuery.parseJSON(), which will use JSON.parse() under the hood if it's supported and will otherwise fallback to a custom implementation to parse the input. ...