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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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The abstract base class for all number formats. This class provides the
interface for formatting and
- Enumeration (java.util)
A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
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A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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