Standalone Application

A security manager was not installed in the previous example because applets use the security manager already installed in the client(s) browser. The following example shows the steps needed to install a security manager on the client side.

The source code needed for this example is stored in the examples\Standalone directory. The "Standalone" directory contains the following files:

• InfoInterface.java
• InfoServerImpl.java
• InfoClient.java
• Policy.txt
• Compile.bat
• Rmicompile.bat
• RunServer.bat
• RunClient.bat

The Remote Interface

Listing 6.5 InfoInterface.java

import java.rmi.*; 
import java.rmi.server.*;

//Remote interface
public interface InfoInterface extends Remote { 
	
  //This method is used to get
  //information about the client
  public String getInfo() 
	throws RemoteException,ServerNotActiveException; 
}

InfoInterface declares a single method that returns the hostname of the current client.