Uses of Class java.net.UnknownHostException (Java SE 9 & JDK 9 )

## Uses of Class
java.net.UnknownHostException

- Packages that use UnknownHostException
  Package | Description
  --- | ---
  java.net | Provides the classes for implementing networking applications.
  javax.net | Provides classes for networking applications.
  javax.net.ssl | Provides classes for the secure socket package.

- - ### Uses of UnknownHostException in java.net

    Methods in java.net that throw UnknownHostException
    Modifier and Type | Method | Description
    --- | --- | ---
    `static InetAddress[]` | InetAddress.`getAllByName​(String host)` | Given the name of a host, returns an array of its IP addresses, based on the configured name service on the system.
    `static Inet6Address` | Inet6Address.`getByAddress​(String host, byte[] addr, int scope_id)` | Create an Inet6Address in the exact manner of `InetAddress.getByAddress(String,byte[])` except that the IPv6 scope_id is set to the given numeric value.
    `static Inet6Address` | Inet6Address.`getByAddress​(String host, byte[] addr, NetworkInterface nif)` | Create an Inet6Address in the exact manner of `InetAddress.getByAddress(String,byte[])` except that the IPv6 scope_id is set to the value corresponding to the given interface for the address type specified in `addr`.
    `static InetAddress` | InetAddress.`getByAddress​(byte[] addr)` | Returns an `InetAddress` object given the raw IP address .
    `static InetAddress` | InetAddress.`getByAddress​(String host, byte[] addr)` | Creates an InetAddress based on the provided host name and IP address.
    `static InetAddress` | InetAddress.`getByName​(String host)` | Determines the IP address of a host, given the host's name.
    `static InetAddress` | InetAddress.`getLocalHost​()` | Returns the address of the local host.

    Constructors in java.net that throw UnknownHostException
    Constructor | Description
    --- | ---
    `Socket​(String host, int port)` | Creates a stream socket and connects it to the specified port number on the named host.

  - ### Uses of UnknownHostException in javax.net

    Methods in javax.net that throw UnknownHostException
    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract Socket` | SocketFactory.`createSocket​(String host, int port)` | Creates a socket and connects it to the specified remote host at the specified remote port.
    `abstract Socket` | SocketFactory.`createSocket​(String host, int port, InetAddress localHost, int localPort)` | Creates a socket and connects it to the specified remote host on the specified remote port.

  - ### Uses of UnknownHostException in javax.net.ssl

    Constructors in javax.net.ssl that throw UnknownHostException
    Constructor | Description
    --- | ---
    `SSLSocket​(String host, int port)` | Used only by subclasses.
    `SSLSocket​(String host, int port, InetAddress clientAddress, int clientPort)` | Used only by subclasses.