public class Client
{
public static void main(String[] args) throws Exception
{
InitialContext ctx = new InitialContext();
Calculator calculator = (Calculator) ctx.lookup("CalculatorBean/remote");
System.out.println("1 + 1 = " + calculator.add(1, 1));
System.out.println("1 - 1 = " + calculator.subtract(1, 1));
}