EDU.ksu.cis.calculator.defaultmodel
Class Multiply

java.lang.Object
  |
  +--EDU.ksu.cis.calculator.defaultmodel.Multiply

All Implemented Interfaces:

EncodedOperation, Operation

public class Multiply

extends Object

implements EncodedOperation

The multiply operation.

Author:

Rod Howell (howell@cis.ksu.edu)

Constructor Summary

Multiply()

Method Summary

Object	doOperation(Object[] operands) Returns the result of multiplyinging the given operands.
int	numOperands() Returns 2.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Multiply

public Multiply()

Method Detail

numOperands

public int numOperands()

Returns 2.

Specified by:

numOperands in interface Operation

doOperation

public Object doOperation(Object[] operands)
                   throws ArrayIndexOutOfBoundsException,
                          ClassCastException

Returns the result of multiplyinging the given operands.

Specified by:

doOperation in interface EncodedOperation

Parameters:

operands - The operands for the operation. The length of this array should match the value returned by Operation.numOperands().

Returns:

The result of the operation.

Throws:

ArrayIndexOutOfBoundsException - If operands is not of length at least 2.

ClassCastException - If the elements of operands are not both LargeIntegers.