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JavaScript before leaving the page
I want to make a confirmation before user leaving the page. If he says ok then it would redirect to new page or cancel to leave. I tried to make it with onunload
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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:
11 Answers
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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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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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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...
Inheritance vs. Aggregation [closed]
...ols of thought on how to best extend, enhance, and reuse code in an object-oriented system:
12 Answers
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What are the main uses of yield(), and how does it differ from join() and interrupt()?
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Source: http://www.javamex.com/tutorials/threads/yield.shtml
Windows
In the Hotspot implementation, the way that Thread.yield() works has
changed between Java 5 and Java 6.
In Java 5, Thread.yield() calls the Windows API call Sleep(0). This
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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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Why does flowing off the end of a non-void function without returning a value not produce a compiler
Ever since I realized many years ago, that this doesn't produce an error by default (in GCC at least), I've always wondered why?
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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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