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The identity used to sign the executable is no longer valid

... Correct answer nowadays – Fede Cugliandolo Jun 15 '15 at 17:45 1 ...
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How do I create a copy of an object in PHP?

..._clone() { $this->someObject = clone $this->someObject; } } Now you can do cloning: $bar = new MyClass(); $foo = clone $bar; share | improve this answer | fo...
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CSS selector for first element with class

... This is one of the most well-known examples of authors misunderstanding how :first-child works. Introduced in CSS2, the :first-child pseudo-class represents the very first child of its parent. That's it. There's a very common misconception that it picks u...
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How to format strings using printf() to get equal length in the output?

... of whatever length the two strings header1 and header2 may have. I don't know if all implementations have the %n but Solaris and Linux do. share | improve this answer | foll...
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How to add local .jar file dependency to build.gradle file?

... @Gubatron it's documented now: gradle.org/docs/current/userguide/… – David Moles Jan 12 '15 at 22:23 7 ...
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How do I uninstall a Windows service if the files do not exist anymore?

... Method 3 backfired for me too on Windows 7. Service is there now with Description <Failed to Read Description. Error Code: 2> – Zugwalt Mar 18 '14 at 16:55 ...
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Best way to split string into lines

...ion<Action> measure = (Action func) => { var start = DateTime.Now; for (int i = 0; i < 100000; i++) { func(); } var duration = DateTime.Now - start; Console.WriteLine(duration); }; var input = ""; for (int i = 0; i < 100; i++) { input += "1 \r2\r\n3\n4...
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How to get all subsets of a set? (powerset)

... to for i in range(1, 1 << x). Returning to this years later, I'd now write it like this: def powerset(s): x = len(s) masks = [1 << i for i in range(x)] for i in range(1 << x): yield [ss for mask, ss in zip(masks, s) if i & mask] And then the test code...
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Pointers in C: when to use the ampersand and the asterisk?

I'm just starting out with pointers, and I'm slightly confused. I know & means the address of a variable and that * can be used in front of a pointer variable to get the value of the object that is pointed to by the pointer. But things work differently when you're working with arrays, string...
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Clear the entire history stack and start a new activity on Android

...hould not do that. :) Edit: As per @Ben Pearson's comment, for API <=10 now one can use IntentCompat class for the same. One can use IntentCompat.FLAG_ACTIVITY_CLEAR_TASK flag to clear task. So you can support pre API level 11 as well. ...