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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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The abstract base class for all number formats. This class provides the
interface for formatting and
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
- Filter (javax.servlet)
A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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