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How to refresh app upon shaking the device?

I need to add a shake feature that will refresh my Android application. 16 Answers 16 ...
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Why is the time complexity of both DFS and BFS O( V + E )

... [(incident_edges v1) + (incident_edges v2) + ... + (incident_edges vn)] and the first group is O(N) while the other is O(E). share | improve this answer | follow ...
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How can I call controller/view helper methods from the console in Ruby on Rails?

...one app.get (a thread error ensues). Is there a way I can flush the system and execute more gets? – JellicleCat May 22 '12 at 17:53 2 ...
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Differences between socket.io and websockets

What are the differences between socket.io and websockets in node.js? Are they both server push technologies? The only differences I felt was, ...
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Can I recover a branch after its deletion in Git?

...branch? Is there a way to go back as if I didn't run the delete branch command? 20 Answers ...
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Need to reset git branch to origin version

...n (github). Is there an easy way to do this? I tried deleting the branch and then resetting up the tracking branch, but it just gives me the version I was working on again. ...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

Is there a rule-of-thumb for how to best divide data into training and validation sets? Is an even 50/50 split advisable? Or are there clear advantages of having more training data relative to validation data (or vice versa)? Or is this choice pretty much application dependent? ...
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how to create a Java Date object of midnight today and midnight tomorrow?

... Calendar date = new GregorianCalendar(); // reset hour, minutes, seconds and millis date.set(Calendar.HOUR_OF_DAY, 0); date.set(Calendar.MINUTE, 0); date.set(Calendar.SECOND, 0); date.set(Calendar.MILLISECOND, 0); // next day date.add(Calendar.DAY_OF_MONTH, 1); JDK 8 - java.time.LocalTime and...
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What is the difference between DSA and RSA?

It appears they are both encryption algorithms that require public and private keys. Why would I pick one versus the other to provide encryption in my client server application? ...
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What is the difference between a definition and a declaration?

... A declaration introduces an identifier and describes its type, be it a type, object, or function. A declaration is what the compiler needs to accept references to that identifier. These are declarations: extern int bar; extern int g(int, int); double f(int, doub...