Network (Internet)

(1) to obtain an IP address

. 1  Package JavaEE.JavaBaseExampleTest.Internet;
 2  
. 3  Import the java.net.InetAddress;
 . 4  Import a java.net.UnknownHostException;
 . 5  
. 6  / ** 
. 7  * using InetAddress.getByName InetAddress class () method to get the specified host (URL) of IP address
 . 8   * / 
. 9  public  class Getip {
 10      public  static  void main (String [] args) {
 . 11          InetAddress address = null ;
 12 is          the try {
 13 is              address = InetAddress.getByName ( "www.w3cschool.cn" );
 14         }catch (UnknownHostException e){
15             System.exit(2);
16         }
17         System.out.println(address.getHostName() + "=" + address.getHostAddress());
18         System.exit(0);
19     }
20 }

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