jTrolog.terms

Class Number

java.lang.Object

jTrolog.terms.Term

jTrolog.terms.EvaluableTerm

jTrolog.terms.Number

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Float, Int

public abstract class Number
extends EvaluableTerm

Number abstract class represents numbers prolog data type

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static double	MARGIN

Fields inherited from class jTrolog.terms.Term

ATOM, emptyList, FALSE, iterator, NUMBER, pos, prePost, STRUCT, tree, TRUE, type, VAR

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Number()

Method Summary

Modifier and Type	Method and Description
static int	compareDoubleValues(Number one, Number two)
static Number	create(String s)
abstract double	doubleValue() Returns the value of the number as double
abstract float	floatValue() Returns the value of the number as float
static Number	getIntegerNumber(long num)
abstract int	intValue() Returns the value of the number as int
abstract long	longValue() Returns the value of the number as long
String	toStringSmall()

Methods inherited from class java.lang.Object

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

Field Detail

MARGIN

public static final double MARGIN

See Also:

Constant Field Values

Constructor Detail

Number

protected Number()

Method Detail

intValue

public abstract int intValue()

Returns the value of the number as int

floatValue

public abstract float floatValue()

Returns the value of the number as float

longValue

public abstract long longValue()

Returns the value of the number as long

doubleValue

public abstract double doubleValue()

Returns the value of the number as double

compareDoubleValues

public static int compareDoubleValues(Number one,
                                      Number two)

Returns:

0 if one is the same as two (within the MARGIN of error) 1 if one is greater than two -1 if one is smaller than two

create

public static Number create(String s)
                     throws NumberFormatException

Throws:

NumberFormatException

getIntegerNumber

public static Number getIntegerNumber(long num)

toStringSmall

public String toStringSmall()

Specified by:

toStringSmall in class Term