使用InetAddress类获取本地计算机的IP地址和主机名

20、使用InetAddress类获取本地计算机的IP地址和主机名，甲骨文公司(www.oracle.com)主机的IP地址。
1）通过InetAddress.getLocalHost();获取本地计算机的InetAddress对象
2）通过InetAddress.getByName("www.oracle.com");获取Oracle公司的InetAddress对象

import java.net.InetAddress;
public class Test01 {
  public static void main(String[] args) throws Exception {
    InetAddress localAddress = InetAddress.getLocalHost();
    InetAddress remoteAddress = InetAddress.getByName("www.oracle.com");
    System.out.println("本机的IP地址：" + localAddress.getHostAddress());
         System.out.println("本地的主机名：" + localAddress.getHostName());
    System.out.println("甲骨文的IP地址：" + remoteAddress.getHostAddress());
    
  }
}