REMOTE METHOD INVOCATION(RMI)

Calculator.java

import java.rmi.Remote; import java.rmi.RemoteException; public interface Calculator extends Remote {     public long add(long a,long b) throws RemoteException; }

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CalculatorImpl.java

import java.rmi.RemoteException; import java.rmi.server.UnicastRemoteObject; public class CalculatorImpl extends UnicastRemoteObject implements Calculator {     protected CalculatorImpl() throws RemoteException     {         super();     }     public long add(long a, long b) throws RemoteException     {         return a+b;     } }

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CalculatorServer.java

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import java.rmi.Naming; public class CalculatorServer {     CalculatorServer()     {         try         {             Calculator c = new CalculatorImpl();             Naming.rebind("rmi://127.0.0.1:1099/CalculatorService", c);         }         catch (Exception e)         {             e.printStackTrace();         }     }     public static void main(String[] args)     {         new CalculatorServer();     } }

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CalculatorClient.java

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import java.rmi.Naming; public class CalculatorClient {     public static void main(String[] args)     {         try         {             Calculator c = (Calculator) Naming.lookup("//127.0.0.1:1099/CalculatorService");             System.out.println("addition : "+c.add(10, 15));         }         catch (Exception e)         {             System.out.println(e);         }     } }

See more at: http://www.java2all.com/1/5/22/113/Technology/RMI/RMI-Program/RMI-Program-in-java#sthash.bbdLDMkn.dpuf