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ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
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A border layout lays out a container, arranging and resizing its components to
fit in five regions:
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