tryurlobjects.java

程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件

package examples.network;

import java.net.*;
import java.util.Date;

/** An example class to demonstrate the use of URL
  * class objects
  */
public class TryURLObjects {

   /** The test method for the class
     * @param args not used
     */
   public static void main( String[] args ) {
      try {
         URL vajavaPage
            = new URL( "http://www.software.ibm.com"
                       + "/ad/vajava" );
         URLConnection vajavaConn
            = vajavaPage.openConnection();
         Date lastModified
            = new Date( vajavaConn.getLastModified());
         System.out.println( vajavaPage
                             + " was last modified " 
                             + lastModified );
      }
      catch( Exception x ) {
         System.out.println( x );
      }
   }
}