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What is the difference between a HashMap and a TreeMap? [duplicate]
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TreeMap is an example of a SortedMap, which means that the order of the keys can be sorted, and when iterating over the keys, you can expect that they will be in order.
HashMap on the other hand, makes no such guarantee. Therefore, when iterating over the keys of a HashMap, you can't be sure wh...
Representing Monetary Values in Java [closed]
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BigDecimal all the way. I've heard of some folks creating their own Cash or Money classes which encapsulate a cash value with the currency, but under the skin it's still a BigDecimal, probably with BigDecimal.ROUND_HALF_EVEN rounding.
Edit: As Don mentions in his answer...
GDB missing in OS X v10.9 (Mavericks)
I went to use GDB in OS X v10.9 (Mavericks), and it's not there. Where has it gone?
12 Answers
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Multi-key dictionary in c#? [duplicate]
I know there isn't one in the BCL but can anyone point me to a good opensource one?
16 Answers
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Ternary operator (?:) in Bash
Is there a way to do something like this
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What does jquery $ actually return?
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From Rick Strahl's description:
The jQuery Object: The Wrapped Set:
Selectors return a jQuery object known
as the "wrapped set," which is an
array-like structure that contains all
the selected DOM elements. You can
iter...
How to convert numbers between hexadecimal and decimal
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answered Sep 16 '08 at 16:26
Andy McCluggageAnd...
Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
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'id' is a bad variable name in Python
...'s memory
address.)
In general, using variable names that eclipse a keyword or built-in function in any language is a bad idea, even if it is allowed.
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How to create a jQuery function (a new jQuery method or plugin)?
I know that in JavaScript the syntax is as follows:
13 Answers
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