import java.awt.*;
import java.awt.event.*;
import java.awt.Graphics;
import javax.swing.*;
import org.omg.CosNaming.*;
import org.omg.CORBA.*;

public class vpclient
{

 public static void main(String[] args)
    {

    try
    {

      ORB myorb = ORB.init(args,null);   
      org.omg.CORBA.Object objref = 
             myorb.resolve_initial_references("NameService");

      // connect with naming service (registry)
      NamingContext ncref = NamingContextHelper.narrow(objref);
      NameComponent[] path1 = 
             { new NameComponent("student1","Object") };
      NameComponent[] path2 = 
             { new NameComponent("student2","Object") };
      NameComponent[] path3 = 
             { new NameComponent("student3","Object") };
      NameComponent[] path4 = 
             { new NameComponent("printer","Object") };
      NameComponent[] path5 = 
             { new NameComponent("tuitionadj","Object") };

      studentvisitee s1, s2, s3;

      s1 = studentvisiteeHelper.narrow(ncref.resolve(path1));
      s2 = studentvisiteeHelper.narrow(ncref.resolve(path2));
      s3 = studentvisiteeHelper.narrow(ncref.resolve(path3));
      s1.name("ethan");
      s2.name("jerry");
      s3.name("bruce");
      s1.next(s2);  s2.next(s3); s3.next(null);

      System.out.println(s2.f());
      System.out.println(s2.next().f());

      studentvisitor pv;
      pv = printvisitorHelper.narrow(ncref.resolve(path4));
      
      s1.accept(pv);

      studentvisitor ta;
      ta = tuitionadjustorHelper.narrow(ncref.resolve(path5));

      s1.tuition(1000);
      s2.tuition(1000);
      s3.tuition(1500);
      
      s1.accept(ta);

      System.out.println("New tuitions: ");
      System.out.println(s1.tuition());
      System.out.println(s2.tuition());
      System.out.println(s3.tuition());

    } catch (Exception e) {e.printStackTrace();}
 } // main
}