EDU.ksu.cis.calculator
Interface Calculator

All Known Implementing Classes:

CalculatorImpl, CalculatorImpl

public interface Calculator

An interface abstracting a calculator.

Author:

Rod Howell (howell@cis.ksu.edu)

Method Summary

void	changeSettings(Object change, String input) This method may be implemented to change any settings of the calculator.
void	doOperation(Operation op, String input) Performs operation op, using input as a possible source of operand(s).

Method Detail

doOperation

public void doOperation(Operation op,
                        String input)
                 throws Exception

Performs operation op, using input as a possible source of operand(s).

Throws:

Exception - May throw any Exception.

changeSettings

public void changeSettings(Object change,
                           String input)
                    throws Exception

This method may be implemented to change any settings of the calculator.

Parameters:

change - Encodes the change to the settings.

input - May contain input affected by the change.

Throws:

Exception - May throw any Exception.