Class java.net.UnknownHostException - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Class java.net.UnknownHostException

java.lang.Object
   |
   +----java.lang.Throwable
           |
           +----java.lang.Exception
                   |
                   +----java.io.IOException
                           |
                           +----java.net.UnknownHostException

public class UnknownHostException
extends IOException

Thrown to indicate that the IP address of a host could not be determined.

UnknownHostException(): Constructs a new UnknownHostException with no detail message.
UnknownHostException(String): Constructs a new UnknownHostException with the specified detail message.

UnknownHostException

 public UnknownHostException(String host)

Constructs a new UnknownHostException with the specified detail message.

Parameters:: host - the detail message.

UnknownHostException

 public UnknownHostException()

Constructs a new UnknownHostException with no detail message.

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