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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 BufferedInputStream adds functionality to another input stream-namely, the
ability to buffer the i
- BufferedReader (java.io)
Wraps an existing Reader and buffers the input. Expensive interaction with the
underlying reader is
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
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Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of
objects. It enables u
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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