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Ô­À´µÄÃüÁîΪ£ºServer  javac HelloServer.java HelloApp/*.java
                            Client  javac HelloClient.java HelloApp/*.java
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module HelloApp
{
  
 interface Hello
    {
        string sayHello();
        oneway void shutdown();
     };
};
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// A server for the Hello object
import HelloApp.*;
import org.omg.CosNaming.*;
import org.omg.CosNaming.NamingContextPackage.*;
import org.omg.CORBA.*;
import org.omg.PortableServer.*;
import org.omg.PortableServer.POA;
import java.util.Properties;
public class HelloServer {
  public static void main(String args[]) {
    try{
      // create and initialize the ORB
      ORB orb = ORB.init(args, null);
     


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