Re: using TreeMap how to return the Object ?

On 06/27/2013 11:19 AM, Jeff Higgins wrote:


public class HostsTest {

   private final Hosts hosts;

   { hosts = new Hosts(); }

   public static void main(String[] args) {
     HostsTest test = new HostsTest();
     test.fillHosts("\\etc\\hosts");
   }

   public boolean fillHosts(String filename) {

     /*
      * TODO
      */

     return false;
   }

   public Host getHost(IPAddress address) {

     /*
      * TODO
      */

     return null;
   }

}

public class IPAddress implements Comparable<IPAddress> {

   /*
    * IPV4 addresses are 32 bit values
    * IPV6 addresses are 128 bit values
    * (non-Javadoc)
    * @see java.lang.Comparable#compareTo(java.lang.Object)
    */

   // some private final field to hold your address value.
   // some constructor(s)

   @Override
   public int compareTo(IPAddress address) {
     // TODO Auto-generated method stub
     return 0;
   }

   @Override
   public int hashCode() {
     // TODO Auto-generated method stub
     return super.hashCode();
   }

   @Override
   public boolean equals(Object obj) {
     // TODO Auto-generated method stub
     return super.equals(obj);
   }

   @Override
   public String toString() {
     // TODO Auto-generated method stub
     return super.toString();
   }
}

import java.util.ArrayList;
import java.util.List;

public class Host {

   private final String hostName;
   private final List<String> aliases;

   { aliases = new ArrayList<String>(); }

   public Host(String hostname) {
     hostName = hostname;
   }

   /*
    * TODO
    */

}

import java.util.Map;
import java.util.TreeMap;

public class Hosts {

   private final Map<IPAddress, Host> map;

   { map = new TreeMap<IPAddress, Host>(); }

   public Host getHostFromIPAddress(IPAddress address) {

     /*
      * TODO
      */

     return null;
   }

}