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Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
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Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of
objects. It enables u
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- IsNull (org.hamcrest.core)
Is the value null?
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