| void | DatagramSocket. bind(SocketAddress addr) | Binds this DatagramSocket to a specific address and port. | 
| protected abstract void | DatagramSocketImpl. bind(int lport,
    InetAddress laddr) | Binds a datagram socket to a local port and address. | 
| void | DatagramSocket. connect(SocketAddress addr) | Connects this socket to a remote socket address (IP address + port number). | 
| protected void | DatagramSocketImpl. connect(InetAddress address,
       int port) | Connects a datagram socket to a remote destination. | 
| protected abstract void | DatagramSocketImpl. create() | Creates a datagram socket. | 
| boolean | DatagramSocket. getBroadcast() | Tests if SO_BROADCAST is enabled. | 
| static NetworkInterface | NetworkInterface. getByIndex(int index) | Get a network interface given its index. | 
| static NetworkInterface | NetworkInterface. getByInetAddress(InetAddress addr) | Convenience method to search for a network interface that
 has the specified Internet Protocol (IP) address bound to
 it. | 
| static NetworkInterface | NetworkInterface. getByName(String name) | Searches for the network interface with the specified name. | 
| byte[] | NetworkInterface. getHardwareAddress() | Returns the hardware address (usually MAC) of the interface if it
 has one and if it can be accessed given the current privileges. | 
| InetAddress | MulticastSocket. getInterface() | Retrieve the address of the network interface used for
 multicast packets. | 
| boolean | Socket. getKeepAlive() |  | 
| boolean | MulticastSocket. getLoopbackMode() | Get the setting for local loopback of multicast datagrams. | 
| int | NetworkInterface. getMTU() | Returns the Maximum Transmission Unit (MTU) of this interface. | 
| NetworkInterface | MulticastSocket. getNetworkInterface() | Get the multicast network interface set. | 
| static Enumeration<NetworkInterface> | NetworkInterface. getNetworkInterfaces() | Returns an Enumerationof all the interfaces on this machine. | 
| boolean | Socket. getOOBInline() |  | 
| Object | SocketOptions. getOption(int optID) | Fetch the value of an option. | 
| int | DatagramSocket. getReceiveBufferSize() | Get value of the SO_RCVBUF option for this DatagramSocket, that is the
 buffer size used by the platform for input on thisDatagramSocket. | 
| int | ServerSocket. getReceiveBufferSize() | Gets the value of the  SO_RCVBUF option
 for this  ServerSocket, that is the proposed buffer size that
 will be used for Sockets accepted from this  ServerSocket. | 
| int | Socket. getReceiveBufferSize() | Gets the value of the  SO_RCVBUF option
 for this  Socket, that is the buffer size used by the platform
 for input on this  Socket. | 
| boolean | DatagramSocket. getReuseAddress() | Tests if SO_REUSEADDR is enabled. | 
| boolean | ServerSocket. getReuseAddress() |  | 
| boolean | Socket. getReuseAddress() |  | 
| int | DatagramSocket. getSendBufferSize() | Get value of the SO_SNDBUF option for this DatagramSocket, that is the
 buffer size used by the platform for output on thisDatagramSocket. | 
| int | Socket. getSendBufferSize() | Get value of the  SO_SNDBUF option
 for this  Socket, that is the buffer size used by the platform
 for output on this  Socket. | 
| int | Socket. getSoLinger() |  | 
| int | DatagramSocket. getSoTimeout() | Retrieve setting for SO_TIMEOUT.  0 returns implies that the
 option is disabled (i.e., timeout of infinity). | 
| int | Socket. getSoTimeout() | Returns setting for  SO_TIMEOUT.
 0 returns implies that the option is disabled (i.e., timeout of infinity). | 
| boolean | Socket. getTcpNoDelay() |  | 
| int | DatagramSocket. getTrafficClass() | Gets traffic class or type-of-service in the IP datagram
 header for packets sent from this DatagramSocket. | 
| int | Socket. getTrafficClass() | Gets traffic class or type-of-service in the IP header
 for packets sent from this Socket | 
| boolean | NetworkInterface. isLoopback() | Returns whether a network interface is a loopback interface. | 
| boolean | NetworkInterface. isPointToPoint() | Returns whether a network interface is a point to point interface. | 
| boolean | NetworkInterface. isUp() | Returns whether a network interface is up and running. | 
| static Stream<NetworkInterface> | NetworkInterface. networkInterfaces() | Returns a Streamof all the interfaces on this machine. | 
| void | DatagramSocket. setBroadcast(boolean on) | Enable/disable SO_BROADCAST. | 
| void | MulticastSocket. setInterface(InetAddress inf) | Set the multicast network interface used by methods
 whose behavior would be affected by the value of the
 network interface. | 
| void | Socket. setKeepAlive(boolean on) |  | 
| void | MulticastSocket. setLoopbackMode(boolean disable) | Disable/Enable local loopback of multicast datagrams
 The option is used by the platform's networking code as a hint
 for setting whether multicast data will be looped back to
 the local socket. | 
| void | MulticastSocket. setNetworkInterface(NetworkInterface netIf) | Specify the network interface for outgoing multicast datagrams
 sent on this socket. | 
| void | Socket. setOOBInline(boolean on) | Enable/disable  SO_OOBINLINE
 (receipt of TCP urgent data)
 By default, this option is disabled and TCP urgent data received on a
 socket is silently discarded. | 
| void | SocketOptions. setOption(int optID,
         Object value) | Enable/disable the option specified by optID. | 
| void | DatagramSocket. setReceiveBufferSize(int size) | Sets the SO_RCVBUF option to the specified value for this
 DatagramSocket. | 
| void | ServerSocket. setReceiveBufferSize(int size) | Sets a default proposed value for the
  SO_RCVBUF option for sockets
 accepted from this  ServerSocket. | 
| void | Socket. setReceiveBufferSize(int size) | Sets the  SO_RCVBUF option to the
 specified value for this  Socket. | 
| void | DatagramSocket. setReuseAddress(boolean on) | Enable/disable the SO_REUSEADDR socket option. | 
| void | ServerSocket. setReuseAddress(boolean on) |  | 
| void | Socket. setReuseAddress(boolean on) |  | 
| void | DatagramSocket. setSendBufferSize(int size) | Sets the SO_SNDBUF option to the specified value for this
 DatagramSocket. | 
| void | Socket. setSendBufferSize(int size) | Sets the  SO_SNDBUF option to the
 specified value for this  Socket. | 
| void | Socket. setSoLinger(boolean on,
           int linger) | Enable/disable  SO_LINGER with the
 specified linger time in seconds. | 
| void | DatagramSocket. setSoTimeout(int timeout) | Enable/disable SO_TIMEOUT with the specified timeout, in
  milliseconds. | 
| void | ServerSocket. setSoTimeout(int timeout) | Enable/disable  SO_TIMEOUT with the
 specified timeout, in milliseconds. | 
| void | Socket. setSoTimeout(int timeout) | Enable/disable  SO_TIMEOUT
  with the specified timeout, in milliseconds. | 
| void | Socket. setTcpNoDelay(boolean on) | Enable/disable  TCP_NODELAY
 (disable/enable Nagle's algorithm). | 
| void | DatagramSocket. setTrafficClass(int tc) | Sets traffic class or type-of-service octet in the IP
 datagram header for datagrams sent from this DatagramSocket. | 
| void | Socket. setTrafficClass(int tc) | Sets traffic class or type-of-service octet in the IP
 header for packets sent from this Socket. | 
| boolean | NetworkInterface. supportsMulticast() | Returns whether a network interface supports multicasting or not. |