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Dependency injection through constructors or property setters?
...y method of the class use all the dependencies? If not, then that's a good starting point to see where the class could be split up.
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NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
...ASE;
return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2");
}
Then in the activity's onCreate method:
if (isSamsung_4_2_2()) {
setContentView(R.layout.activity_main_no_toolbar);
} else {
setContentView(R.layout.activity_main);
}
As pointed out this is...
What's the difference between backtracking and depth first search?
...acktracking related to searching tree structures. From Wikipedia:
One starts at the root (selecting some node as the root in the graph case) and explores as far as possible along each branch before backtracking.
It uses backtracking as part of its means of working with a tree, but is limited ...
Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
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Because of Dennis Ritchie
I started using for (;;) because that's the way Dennis Ritchie does it in K&R, and when learning a new language I always try to imitate the smart guys.
This is idiomatic C/C++. It's probably better in the long run to get ...
How to kill a child process after a given timeout in Bash?
...ill not take the pid of the calling shell but the (first) subshell that is started by (). The (sleep... thing calls a second subshell within the first subshell to wait 10 secs in the background and kill the first subshell which, after having launched the killer subshell process, proceeds to execute ...
Create array of symbols
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The original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
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What does -XX:MaxPermSize do?
...is other Oracle documentation lists the other HotSpot arguments.
Update : Starting with Java 8, both the permgen space and this setting are gone. The memory model used for loaded classes and methods is different and isn't limited (with default settings). You should not see this error any more.
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Why use sprintf function in PHP?
...ll find plenty of examples. The wikipedia article on printf should get you started.
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Find kth smallest element in a binary search tree in Optimum way
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Given just a plain binary search tree, about all you can do is start from the smallest, and traverse upward to find the right node.
If you're going to do this very often, you can add an attribute to each node signifying how many nodes are in its left sub-tree. Using that, you can descen...
Get average color of image via Javascript
...ve generator is partially based on libpng sources and might provide a good starting point.)
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