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A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
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HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
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An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
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This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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A Window object is a top-level window with no borders and no menubar. The
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