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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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This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
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A class which can consume and produce dates in SQL Date format. Dates are
represented in SQL as yyyy
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- FileUtils (org.apache.commons.io)
General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
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The GridBagLayout class is a flexible layout manager that aligns components
vertically and horizonta
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