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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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A writable sink for bytes.Most clients will use output streams that write data
to the file system (
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Represents a command that can be executed. Often used to run code in a different
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Collection is the root of the collection hierarchy. It defines operations on
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A generic Abstract Window Toolkit(AWT) container object is a component that can
contain other AWT co
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