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A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
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A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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A border layout lays out a container, arranging and resizing its components to
fit in five regions:
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- Top 12 Jupyter Notebook extensions