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Answer an IP address that is of common interest (this can be either the local or the remote address, according to the definition in the subclass).
Answer whether there is data available on the socket. Same as #canRead, present for backwards compatibility.
Answer whether there is data available on the socket.
Answer whether there is free space in the socket’s write buffer.
Close the socket represented by the receiver.
Flush any buffers used by the receiver.
Answer whether the connection between the receiver and the remote endpoint is still alive.
Answer whether the connection with the peer remote machine is still valid.
Answer the local IP address of the socket.
Answer the local IP port of the socket.
Answer an IP port that is of common interest (this can be the port for either the local or remote endpoint, according to the definitions in the subclass
Answer the IP address of the socket’s remote endpoint.
Answer the IP port of the socket’s remote endpoint.