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Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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A Rectangle specifies an area in a coordinate space that is enclosed by the
Rectangle object's top-
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