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ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
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A specialized Writer that writes to a file in the file system. All write
requests made by calling me
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Provides access to system-related information and resources including standard
input and output. Ena
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An immutable arbitrary-precision signed decimal.A value is represented by an
arbitrary-precision "un
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A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
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TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
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