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This class generates cryptographically secure pseudo-random numbers. It is best
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A java.util.Queue that additionally supports operations that wait for the queue
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Patterns are compiled regular expressions. In many cases, convenience methods
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XPath provides access to the XPath evaluation environment and expressions.
Evaluation of XPath Expr
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This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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The GridBagLayout class is a flexible layout manager that aligns components
vertically and horizonta
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