/* Listing4301.java */

import java.io.*;

interface HelloMeth
{
  public void hello();
}

class CA
implements HelloMeth
{
  public void hello()
  {
    System.out.println("hello CA");
  }
}

class CB
implements HelloMeth
{
  public void hello()
  {
    System.out.println("hello CB");
  }
}

class CC
{
  public void hello()
  {
    System.out.println("hello CC");
  }
}

class CD
{
  public void hallo()
  {
    System.out.println("hallo CD");
  }
}

public class Listing4301
{
  public static void main(String[] args)
  {
    String buf = "";
    BufferedReader in = new BufferedReader(
                        new InputStreamReader(
                        new DataInputStream(System.in)));
    while (true) {
    try {
        System.out.print("Klassenname oder ende eingeben: ");
        buf = in.readLine();
        if (buf.equals("ende")) {
          break;
        }
        Class c = Class.forName(buf);
        Object o = c.newInstance();
        ((HelloMeth)o).hello();
      } catch (IOException e) {
        System.out.println(e.toString());
      } catch (ClassNotFoundException e) {
        System.out.println("Klasse nicht gefunden");
      } catch (ClassCastException e) {
        System.out.println(e.toString());
      } catch (InstantiationException e) {
        System.out.println(e.toString());
      } catch (IllegalAccessException e) {
        System.out.println(e.toString());
      }
    }
  }
}