calculatorimpl.java

一个rmi例子程序

package rmi;

import java.rmi.server.UnicastRemoteObject;

public class CalculatorImpl extends UnicastRemoteObject implements Calculator {

    // 这个实现必须有一个显式的构造函数，并且要抛出一个RemoteException异常  
    public CalculatorImpl() throws java.rmi.RemoteException {
        super();
    }

    public long add(long a, long b) throws java.rmi.RemoteException {
        return a + b;
    }

    public long sub(long a, long b) throws java.rmi.RemoteException {
        return a - b;
    }

    public long mul(long a, long b) throws java.rmi.RemoteException {
        return a * b;
    }

    public long div(long a, long b) throws java.rmi.RemoteException {
        return a / b;
    }
}