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public  abstract  class  java.net.SocketImpl
    extends  java.lang.Object  (I-§1.12)
{
        // Fields
    protected InetAddress address;	§4.7.1
    protected FileDescriptor fd;	§4.7.2
    protected int localport;	§4.7.3
    protected int port;	§4.7.4

        // Constructors
    public SocketImpl();	§4.7.5

        // Methods
    protected abstract void accept(SocketImpl  s);	§4.7.6
    protected abstract int available();	§4.7.7
    protected abstract void bind(InetAddress  host, int  port);	§4.7.8
    protected abstract void close();	§4.7.9
    protected abstract void	§4.7.10
        connect(InetAddress  address, int  port);
    protected abstract void connect(String  host, int  port);	§4.7.11
    protected abstract void create(boolean  stream);	§4.7.12
    protected FileDescriptor getFileDescriptor();	§4.7.13
    protected InetAddress getInetAddress();	§4.7.14
    protected abstract InputStream getInputStream();	§4.7.15
    protected int getLocalPort();	§4.7.16
    protected abstract OutputStream getOutputStream();	§4.7.17
    protected int getPort();	§4.7.18
    protected abstract void listen(int  count);	§4.7.19
    public String toString();	§4.7.20
}

A "plain" socket implements these methods exactly as described, without attempting to go through a firewall or proxy.

The IP address of the remote end of this socket.

The file descriptor object for this socket.

The local port number to which this socket is connected

The port number on the remote host to which this socket is connected.

The default constructor for a socket implementation.

Accepts a connection.

Parameters:

s - the accepted connection

Throws

IOException (I-§2.29)

If an I/O error occurs when accepting the connection.

Returns:

the number of bytes that can be read from this socket without blocking.

Throws

IOException (I-§2.29)

If an I/O error occurs when determining the number of bytes available.

Binds this socket to the specified port number on the specified host.

Parameters:

host - the IP address of the remote hsot

port - the port number

Throws

IOException (I-§2.29)

If an I/O error occurs when binding this socket.

Closes this socket.

Throws

IOException (I-§2.29)

If an I/O error occurs when closing this socket.

Connects this socket to the specified port number on the specified host.

Parameters:

address - the IP address of the remote host

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