useraccount.java

J2EE技术是一种可以信赖的企业级软件开发技术

package useraccount;

import javax.ejb.EJBObject;
import java.rmi.RemoteException;
import java.sql.SQLException;

public interface UserAccount extends EJBObject {
    public double Balance() throws RemoteException,SQLException;

    public void Withdraw(double amount) throws RemoteException,SQLException;

    public void Deposit(double amount) throws RemoteException,SQLException;

    public void Transfer(String toId, double amount) throws RemoteException,SQLException;
}