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How to make a countdown timer in Android?
I have two EditTexts in XML. In one EditText, the user can put a number as minutes and in another EditText, a number as seconds. After clicking the finish button, the seconds EditText should start to countdown and update its text every second.
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Call Go functions from C
...static object written in Go to interface with a C program (say, a kernel module or something).
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Regexp Java for password validation
I'm creating a regexp for password validation to be used in a Java application as a configuration parameter.
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composer: How to find the exact version of a package?
Suppose I'm writing a library A, that depends on another library, monolog for instance.
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
Why is it that scanf() needs the l in " %lf " when reading a double , when printf() can use " %f " regardless of whether its argument is a double or a float ?
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How to get all subsets of a set? (powerset)
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mongodb/mongoose findMany - find all documents with IDs listed in array
I have an array of _ids and I want to get all docs accordingly, what's the best way to do it ?
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
I've just started learning Ruby and Ruby on Rails and came across validation code that uses ranges:
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Recursive directory listing in DOS
How do we achieve a recursive directory listing in DOS?
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