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What does the servlet value signify
...are having a few servlets defined. Here is the excerpt from the web.xml for one of the servlets:
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What does “|=” mean? (pipe equal operator)
...ification.defaults | Notification.DEFAULT_SOUND;
where | is the bit-wise OR operator.
All operators are referenced here.
A bit-wise operator is used because, as is frequent, those constants enable an int to carry flags.
If you look at those constants, you'll see that they're in powers of two :
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Margin-Top push outer div down
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put overflow:auto in the parent div
see more in this link
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How to load JAR files dynamically at Runtime?
... a way of doing it by writing your own ClassLoader , but that's a lot of work for something that should (in my mind at least) be as easy as calling a method with a JAR file as its argument.
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Lua string to int
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In Lua 5.3, (64-bit default) integers are treated accordingly (lua.org/manual/5.3/manual.html): "A numeric constant with a fractional dot or an exponent denotes a float; otherwise it denotes an integer."
– Kevin Lee
Mar 19 '15 at 15:10
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Inheritance vs. Aggregation [closed]
...ols of thought on how to best extend, enhance, and reuse code in an object-oriented system:
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What is exactly the base pointer and stack pointer? To what do they point?
...s stack walking in a debugger and viewing other frames local variables to work.
Most function prologs look something like:
push ebp ; Preserve current frame pointer
mov ebp, esp ; Create new frame pointer pointing to current stack top
sub esp, 20 ; allocate 20 bytes worth of locals on st...
Reference — What does this symbol mean in PHP?
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Incrementing / Decrementing Operators
++ increment operator
-- decrement operator
Example Name Effect
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++$a Pre-increment Increments $a by one, then returns $a.
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What's the difference between echo, print, and print_r in PHP?
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print and echo are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take multi...
Token Authentication for RESTful API: should the token be periodically changed?
I'm building a RESTful API with Django and django-rest-framework .
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