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Merge and interleave two arrays in Ruby

... that Chris wants to interleave the elements, not concatenate them. Essentially, he wants [a, s].transpose except that the two rows don't conform, leaving #zip as the obvious solution. And I don't believe he meant that he really cared whether a was mutated ... I don't think he was commenting on a mu...
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You need to use a Theme.AppCompat theme (or descendant) with this activity

...a subclass, ActionBarActivity), to Activity, must also change the various calls with "support" to the corresponding call without "support". So, instead of getSupportFragmentManager, call getFragmentManager. share |...
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abort, terminate or exit?

What's the difference between those three, and how shall I end program in case of exception which I can't handle properly? ...
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How to work with Git branches and Rails migrations

...s and many of them include db migrations. We try to be careful but occasionally some piece of code in master asks for a column that got removed/renamed in another branch. ...
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How to define a two-dimensional array?

... You're technically trying to index an uninitialized array. You have to first initialize the outer list with lists before adding items; Python calls this "list comprehension". # Creates a list containing 5 lists, each of 8 items, all set t...
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How to handle button clicks using the XML onClick within Fragments

... That's what I'm doing now essentially but it is a lot messier when you have multiple fragments that each need to receive click events. I'm just aggravated with fragments in general because paradigms have dissolved around them. – smith32...
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How can I get the MD5 fingerprint from Java's keytool, not only SHA-1?

... With JDK 1.7 installed, keytool always outputs by default SHA1 fingerprint, not MD5. you can get the MD5 Certificate by adding -v option. use the following code:- C:\Program Files\Java\jdk1.7.0\bin>keytool -v -list -alias androiddebugke...
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What does T&& (double ampersand) mean in C++11?

...e in the draft C++11 standard, but are not true for the final one! Specifically, it says at various points that rvalue references can bind to lvalues, which was once true, but was changed.(e.g. int x; int &&rrx = x; no longer compiles in GCC) – drewbarbs Jul 13 '14 at 16:12 The biggest d...
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java.net.ConnectException: Connection refused

...ing this error. after reading a lot from the buddy WEB, I then closed out all the simulators and eclipse, killed the ADP in the task manager and then restarted the Eclipse and everything is started working properly. I think when you have multiple simulators running and then you try to connect devi...
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How do I strip non alphanumeric characters from a string and keep spaces?

I want to create a regex that removes all non-alphanumber characters but keeps spaces. This is to clean search input before it hits the db. Here's what I have so far: ...