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A charset is a named mapping between Unicode characters and byte sequences.
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A Comparator is used to compare two objects to determine their ordering with
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A Properties object is a Hashtable where the keys and values must be Strings.
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A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
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A generic Abstract Window Toolkit(AWT) container object is a component that can
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