import java.rmi.*;

public interface rrat extends Remote
{
    // don't put constructor here

    public int getn() throws java.rmi.RemoteException;
    public int getd() throws java.rmi.RemoteException;
    public void setn(int x) throws java.rmi.RemoteException;
    public void setd(int x) throws java.rmi.RemoteException;

    public String toStr() throws java.rmi.RemoteException;

    public boolean eqr(rrat r) throws java.rmi.RemoteException;

    public void invert() throws java.rmi.RemoteException;

    public void change(bigobject b) throws java.rmi.RemoteException;

    public rrat make(String newrat, int n, int d) throws java.rmi.RemoteException;

} // rrat