📄 calculatorimpl.java
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//CalculatorImpl.java
import java.rmi.server.UnicastRemoteObject;
public class CalculatorImpl extends UnicastRemoteObject implements Calculator
{
//声明构造函数
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;};
}
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