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How to add dividers and spaces between items in RecyclerView?
...to extend ItemDecoration, a RecyclerView's inner class:
An ItemDecoration allows the application to add a special drawing and layout offset to specific item views from the adapter's data set. This can be useful for drawing dividers between items, highlights, visual grouping boundaries and more.
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Numpy where function multiple conditions
I have an array of distances called dists. I want to select dists which are between two values. I wrote the following line of code to do that:
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How to list the files inside a JAR file?
I have this code which reads all the files from a directory.
16 Answers
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Transpose list of lists
...npacked argument lists: Given a sequence of arguments args, f(*args) will call f such that each element in args is a separate positional argument of f.
Coming back to the input from the question l = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], zip(*l) would be equivalent to zip([1, 2, 3], [4, 5, 6], [7, 8, ...
Seeking clarification on apparent contradictions regarding weakly typed languages
...xamples of programming languages that simply coerce/convert types automatically.
9 Answers
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bool operator ++ and --
... and 2 or more [true]).
So as a short-hand ++ worked, and -- didn't.
++ is allowed on bools for compatibility with this, but its use is deprecated in the standard and it was removed in C++17.
This assumes that I only use x as an boolean, meaning that overflow can't happen until I've done ++ often e...
Installing Ruby Gem in Windows
I'm new to ruby. I tried to install GEM on my PC by following the steps given in the site http://rubygems.org/pages/download .
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What is the main difference between Inheritance and Polymorphism?
...class, then you have a Student class that extends Person, Student inherits all the things that Person has. There are some details around the access modifiers you put on the fields/methods in Person, but that's the basic idea. For example, if you have a private field on Person, Student won't see it...
Offset a background image from the right using CSS
...11/09/css3-background-position/
Update:
This feature is now supported in all major browsers, including mobile browsers.
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Why malloc+memset is slower than calloc?
It's known that calloc is different than malloc in that it initializes the memory allocated. With calloc , the memory is set to zero. With malloc , the memory is not cleared.
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