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Stateless vs Stateful - I could use some concrete information
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I suggest that you start from a question in StackOverflow that discusses the advantages of stateless programming. This is more in the context of functional programming, but what you will read also applies in other programming paradigms.
Stateless pr...
Get OS-level system information
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You can get some limited memory information from the Runtime class. It really isn't exactly what you are looking for, but I thought I would provide it for the sake of completeness. Here is a small example. Edit: You can also get disk usage information from the java.io....
How to use WeakReference in Java and Android development?
...ence to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to check out SoftReference and PhantomReference as...
Android activity life cycle - what are all these methods for?
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onPaused() --> onStop()
After pressed home button when again open app from recent task list or clicked on icon
onRestart() --> onStart() --> onResume()
When open app another app from notification bar or open settings
onPaused() --> onStop()
Back button pressed from another app or s...
BeanFactory vs ApplicationContext
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An important note from the linked Spring documentation: "Versions of Spring 2.0 and above make heavy use of the BeanPostProcessor extension point (to effect proxying and suchlike), and if you are using just a plain BeanFactory then a fair amou...
“Missing compiler required member” error being thrown multiple times with almost no changes to code
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It actually turned out that I had a bad reference from an assembly that I was no longer using (Azure). I don't think the Azure assembly was compiled against .Net 2.0 but removing it fixed the issue. I'm not sure why this randomly came into being as I haven't touched anything...
Add a common Legend for combined ggplots
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You may also use ggarrange from ggpubr package and set "common.legend = TRUE":
library(ggpubr)
dsamp <- diamonds[sample(nrow(diamonds), 1000), ]
p1 <- qplot(carat, price, data = dsamp, colour = clarity)
p2 <- qplot(cut, price, data = dsamp, ...
Declaration/definition of variables locations in ObjectiveC?
...u were able to access these variables only in your implementation, but not from other classes. To do that, you had to declare accessor methods, that look something like this:
// MyClass.h
@interface MyClass : NSObject {
int myVar;
}
- (int)myVar;
- (void)setMyVar:(int)newVar;
@end
// MyClas...
How to find out line-endings in a text file?
...line endings in a file printed rather than interpreted. The file is a dump from SSIS/SQL Server being read in by a Linux machine for processing.
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What are the differences between a UIView and a CALayer?
... that it can be very easily ported to the Mac. UIViews are very different from NSViews, but CALayers are almost identical on the two platforms. This is why the Core Plot framework lays out its graphs using CALayers instead of other UI elements.
One thing UIViews provide over CALayers is built-in ...