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How can I read input from the console using the Scanner class in Java?
How could I read input from the console using the Scanner class? Something like this:
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Function in JavaScript that can be called only once
I need to create a function which can be executed only once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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Understand the “Decorator Pattern” with a real world example
I was studying the Decorator Pattern as documented in GOF .
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Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
I have this class
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Custom events in jQuery?
I'm looking for some input on how to implement custom eventhandling in jquery the best way. I know how to hook up events from the dom elements like 'click' etc, but I'm building a tiny javascript library/plugin to handle some preview functionality.
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How to articulate the difference between asynchronous and parallel programming?
Many platforms promote asynchrony and parallelism as means for improving responsiveness. I understand the difference generally, but often find it difficult to articulate in my own mind, as well as for others.
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Negative weights using Dijkstra's Algorithm
I am trying to understand why Dijkstra's algorithm will not work with negative weights. Reading an example on Shortest Paths , I am trying to figure out the following scenario:
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what is reverse() in Django
When I read django code sometimes, I see in some templates reverse() . I am not quite sure what this is but it is used together with HttpResponseRedirect. How and when is this reverse() supposed to be used?
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SQL variable to hold list of integers
I'm trying to debug someone else's SQL reports and have placed the underlying reports query into a query windows of SQL 2012.
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How to convert String to Long in Kotlin?
So, due to lack of methods like Long.valueOf(String s) I am stuck.
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