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Difference between abstraction and encapsulation?
... encapsulation; in pseudocode:
point x = { 1, 4 }
point y = { 23, 42 }
numeric d = distance(x, y)
Here, distance encapsulates the calculation of the (Euclidean) distance between two points in a plane: it hides implementation details. This is encapsulation, pure and simple.
Abstraction is the pro...
How to fluently build JSON in Java?
I'm thinking of something like:
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DROP IF EXISTS VS DROP?
Can someone tell me if there is any difference between
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A good solution for await in try/catch/finally?
I need to call an async method in a catch block before throwing again the exception (with its stack trace) like this :
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Gets byte array from a ByteBuffer in java
Is this the recommended way to get the bytes from the ByteBuffer
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Add querystring parameters to link_to
I'm having difficultly adding querystring parameters to link_to UrlHelper. I have an Index view, for example, that has UI elements for sorting, filtering, and pagination (via will_paginate). The will_paginate plugin manages the intra-page persistence of querystring parameters correctly.
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Change private static final field using Java reflection
...vate static final field that, unfortunately, I need to change it at run-time.
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What's the magic of “-” (a dash) in command-line parameters?
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If you mean the naked - at the end of the tar command, that's common on many commands that want to use a file.
It allows you to specify standard input or output rather than an actual file name.
That's the case for your first and t...
UIView's frame, bounds, center, origin, when to use what?
UIView has the properties frame , bounds , center , and origin , and they all seem to be interrelated. Most of the time, I deal with frame when setting the position and size of a UIView . I understand that frame is using global coordinate system and bounds is using coordinate of the lo...