calculatorimpl.java

RMI非常经典的实例+PPT说明(step by step)

//CalculatorImpl.java 
//Implementation 
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;  
    }  
}