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An Internet Protocol (IP) address. This can be either an IPv4 address or an IPv6
address, and in pra
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A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
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An int value that may be updated atomically. See the java.util.concurrent.atomic
package specificati
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Provides Base64 encoding and decoding as defined by RFC 2045.This class
implements section 6.8. Base
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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