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How to change an application icon programmatically in Android?
...st:
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
<uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" />
Then you need this two methods for installing and uninstalling shortcuts. The shortcutAdd method creates a bitm...
Spark java.lang.OutOfMemoryError: Java heap space
... longer need to play with these values, spark will determine them automatically.
Similar to above but shuffle memory fraction. If your job doesn't need much shuffle memory then set it to a lower value (this might cause your shuffles to spill to disk which can have catastrophic impact on speed). So...
Class with single method — best approach?
...lity either before or after the old method, we can create a new class and call the old one inside of it - but that's just gross.
Interface woes
Static methods cannot be defined through interfaces for logic reasons. And since we can't override static methods, static classes are useless when we need ...
Virtual functions and performance - C++
...e a very slight effect on performance, but it's unlikely to affect the overall performance of your application. Better places to look for performance improvements are in algorithms and I/O.
An excellent article that talks about virtual functions (and more) is Member Function Pointers and the Fastes...
input type=file show only button
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This answer is so simple and elegant and has worked for all browsers.
– Mike.C.Ford
Mar 19 '15 at 15:55
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Getting an element from a Set
...as already been added to the Set? For example, when .equals() does not use all of the fields, as the OP specified. A less efficient solution would be to remove the element and re-add it with its values updated.
– KyleM
Feb 19 '13 at 17:48
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Compiling C++ on remote Linux machine - “clock skew detected” warning
I'm connected to my university's small Linux cluster via PuTTY and WinSCP, transferring files using the latter and compiling and running them with the former. My work so far has been performed in the university's labs, but today I have been doing some work at home that generated an interesting warn...
How is set() implemented?
...ts in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have?
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Scanning Java annotations at runtime [closed]
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do I need to specify a package name? wildcard? what for all classes in classpath?
– Sunnyday
Jan 20 '18 at 0:23
1
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.classpath and .project - check into version control or not?
... java project that consists of multiple modules in a tree of dependencies. All those modules are subdirectories in a subversion repository. For newcomers to our project, it's a lot of work to set all that up manually in eclipse.
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