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What are the aspect ratios for all Android phone and tablet devices?

I'm looking for a list of all screen aspect ratios for popular Android based Phones and Tablets. 5 Answers ...
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Spark java.lang.OutOfMemoryError: Java heap space

... suggestions: If your nodes are configured to have 6g maximum for Spark (and are leaving a little for other processes), then use 6g rather than 4g, spark.executor.memory=6g. Make sure you're using as much memory as possible by checking the UI (it will say how much mem you're using) Try using more ...
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How do I invoke a Java method when given the method name as a string?

... edited Sep 29 '16 at 14:13 Andrew Tobilko 42.5k1111 gold badges6666 silver badges119119 bronze badges answered Oct 2 '08 at 5:30 ...
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Is it possible to set the stacking order of pseudo-elements below their parent element? [duplicate]

...ange the default stacking order. Positioning the pseudo-element (absolute) and assigning a z-index value other than “auto” creates the new stacking context. #element { position: relative; /* optional */ width: 100px; height: 100px; background-color: blue; } #elemen...
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When to dispose CancellationTokenSource?

...ll Dispose on CancellationTokenSource... I had a memory leak in my project and it turned out that CancellationTokenSource was the problem. My project has a service, that is constantly reading database and fires off different tasks, and I was passing linked cancellation tokens to my workers, so even...
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Dynamic variable names in Bash

... Use an associative array, with command names as keys. # Requires bash 4, though declare -A magic_variable=() function grep_search() { magic_variable[$1]=$( ls | tail -1 ) echo ${magic_variable[$1]} } If you can't use associative arrays (e.g., you m...
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What's the difference between lapply and do.call?

I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ? ...
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Git diff to show only lines that have been modified

... edited Sep 2 '15 at 17:24 Andrzej Rehmann 7,71366 gold badges3030 silver badges3535 bronze badges answered Sep 15 '13 at 9:02 ...
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Difference between using bean id and name in Spring configuration file

Is there any difference between using an id attribute and name attribute on a <bean> element in a Spring configuration file? ...
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C++ Object Instantiation

I'm a C programmer trying to understand C++. Many tutorials demonstrate object instantiation using a snippet such as: 9 An...