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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
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This class provides access to implementations of cryptographic ciphers for
encryption and decryption
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
- DateTimeFormat (org.joda.time.format)
Factory that creates instances of DateTimeFormatter from patterns and styles.
Datetime formatting i
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