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Validating URL in Java

...ther a connection can be established: try { URL url = new URL("http://www.yoursite.com/"); URLConnection conn = url.openConnection(); conn.connect(); } catch (MalformedURLException e) { // the URL is not in a valid form } catch (IOException e) { // the connection couldn't be est...
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How to trigger Autofill in Google Chrome?

...ur input tags, and set their values according to the HTML spec here http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#autofill-field . Example: <input name="fname" autocomplete="given-name" type="text" placeholder="First Name" required> The...
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Checking if a string array contains a value, and if so, getting its position

... ...And I've been using foreach for months. BTW is this computationally faster than BLUEPIXY's answer? Or slower? – Max von Hippel Aug 10 '15 at 19:11 ...
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Validating email addresses using jQuery and regex

...com.. Allowed for: abc.efg@gmail.com abc@gmail.com.my Source: http://www.mkyong.com/regular-expressions/10-java-regular-expression-examples-you-should-know/ share | improve this answer ...
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How to locate the git config file in Mac [duplicate]

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How to identify numpy types in python?

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Fastest method of screen capturing on Windows

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Is there a performance difference between a for loop and a for-each loop?

...and the opportunity for error by hiding the iterator or index variable completely. The resulting idiom applies equally to collections and arrays: // The preferred idiom for iterating over collections and arrays for (Element e : elements) { doSomething(e); } When you see the colon ...
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How to format a duration in java? (e.g format H:MM:SS)

I'd like to format a duration in seconds using a pattern like H:MM:SS. The current utilities in java are designed to format a time but not a duration. ...
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Difference between classification and clustering in data mining? [closed]

Can someone explain what the difference is between classification and clustering in data mining? 21 Answers ...