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An output stream that writes bytes to a file. If the output file exists, it can
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ArrayList is an implementation of List, backed by an array. All optional
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A PriorityQueue holds elements on a priority heap, which orders the elements
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ResourceBundle is an abstract class which is the superclass of classes which
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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