You can also create a hello world example to test your EJB environment setup. This simple application will required three different files to print the message.

1. SessionBeanRemote.java:-  This  is the Remote interface which extends javax.ejb.EJBObject package. These are similar to RMI Remote interface. The use of remote interface is particularly helpful in  providing business-specific functionality of an EJB.Here @Remote is the annotation used to declare the interface as Remote.

   String getAddress(); String getCompanyname(); String getResult():-These are the methods which is to be defined in the bean.

  2.  SessionBeanBean.java:-This is the bean of type session in which we have defined  the body of the method which were declared in the  
   interface named SessionBeanRemote.java.@Stateless is the annotation used to declare the bean as a session type.

   3.  Main.java:-This is the client application from which  we can access the methods which are defined in the bean.@EJB is the annotation 
  used for configuring the EJB values for a field and  method.

SessionBeanRemote.java

package ejb;

import javax.ejb.Remote;

@Remote
public interface SessionBeanRemote {

  String getResult();

  String getAddress();

  String getCompanyname();
}

SessionBeanBean.java

package ejb;

import javax.ejb.Stateless;

@Stateless
public class SessionBeanBean implements SessionBeanRemote,SessionBeanLocal {

  public String getResult() {
  return "Hello World";
  }
  public String getAddress() {
  return "Sec-3,D-16/116,Rohini";
  }
  public String getCompanyname() {
  return "Roseindia.net Pvt.Ltd.";
  }
}

Main.java

package enterpriseappee5;

import ejb.SessionBeanRemote;
import javax.ejb.EJB;

public class Main {

  @EJB
  private static SessionBeanRemote sessionBeanBean;

  public static void main(String[] args) {
  System.out.println("Displaying Message using EJB:");
  System.out.println("=================================");
  System.err.println("Name of the Company is : =" + sessionBeanBean.getCompanyname());
  System.err.println("Address of the Company is : =" + sessionBeanBean.getAddress());
  System.err.println("Message is : =" + sessionBeanBean.getResult());
  System.out.println("=================================");
  }
} 

Output of the program

Download Source code