org.znerd.math
Class AbstractCompositeNumber

java.lang.Object
  |
  +--java.lang.Number
        |
        +--org.znerd.math.RealNumber
              |
              +--org.znerd.math.CompositeNumber
                    |
                    +--org.znerd.math.AbstractCompositeNumber

Direct Known Subclasses:

Power, Product

public abstract class AbstractCompositeNumber

extends CompositeNumber

Abstract base class for CompositeNumber implementations. This implementation is based on an array. Concrete subclasses should initialize the array upon construction.

Version:

$Revision: 1.1 $ $Date: 2002/06/05 22:23:15 $

Author:

Ernst de Haan (znerd@FreeBSD.org)

See Also:

Serialized Form

Fields inherited from class org.znerd.math.RealNumber

MAXIMUM_RADIX

Constructor Summary

protected

AbstractCompositeNumber(int sign, String asString, RealNumber[] elements) Constructs a new AbstractCompositeNumber object.

Method Summary

RealNumber	getElement(int n) Returns the nth operand.
int	getElementCount() Counts the number of operands.
RealNumber[]	getElements() Returns the operands.

Methods inherited from class org.znerd.math.RealNumber

abs, add, byteValue, compareTo, compareTo, compareToImpl, divide, doubleValue, equals, fitsByte, fitsDouble, fitsFloat, fitsInt, fitsLong, fitsShort, floatValue, getSign, intValue, invert, longValue, multiply, negate, pow, shortValue, subtract, toBigDecimal, toBigDecimal, toBigInteger, toString, trunc

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCompositeNumber

protected AbstractCompositeNumber(int sign,
                                  String asString,
                                  RealNumber[] elements)

Constructs a new AbstractCompositeNumber object.

The sign of the value needs to be specified. Any negative value is interpreted as meaning that the value of this number is negative. Any positive value is interpreted as meaning that the value of this number is positive.

Parameters:

sign - the sign of this number.

elements - the elements for this composite number, not null, not empty and not containing any null values.

Method Detail

getElements

public RealNumber[] getElements()

Description copied from class: CompositeNumber

Returns the operands.

Overrides:

getElements in class CompositeNumber

Tags copied from class: CompositeNumber

Returns:

a new array, containing the operands.

getElementCount

public int getElementCount()

Description copied from class: CompositeNumber

Counts the number of operands.

Overrides:

getElementCount in class CompositeNumber

Tags copied from class: CompositeNumber

Returns:

the operand count, >= 0.

getElement

public RealNumber getElement(int n)
                      throws IndexOutOfBoundsException

Description copied from class: CompositeNumber

Returns the nth operand.

Overrides:

getElement in class CompositeNumber

Tags copied from class: CompositeNumber

Parameters:

n - the index of the operand, >= 0 and < CompositeNumber.getElementCount().

Returns:

the nth operand, not null.

Throws:

IndexOutOfBoundsException - if one of the following applies:

1. n < 0
2. n >= operandCount