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Class nl.coffee.math.AbstractRealNumber

java.lang.Object
  |
  +--java.lang.Number
        |
        +--nl.coffee.math.AbstractRealNumber
Subclasses:
AbstractCompositeNumber, AbstractRationalNumber

public abstract class AbstractRealNumber
extends java.lang.Number
implements RealNumber
Abstract base class for RealNumber implementations.

Concrete subclasses should provide implementations for the following methods:

Since:
JUMP_1.0
Version:
1.2 199809.24
Author:
Ernst de Haan
See Also:
Serialized Form

Constructor Summary
AbstractRealNumber()
          Constructs a new AbstractRealNumber object.
 
Method Summary
RealNumber abs()
           
RealNumber add(RealNumber n)
           
byte byteValue()
           
int compareTo(RealNumber n)
           
RealNumber divide(RealNumber n)
           
double doubleValue()
           
boolean equals(java.lang.Object o)
           
boolean fitsByte()
           
boolean fitsDouble()
           
boolean fitsFloat()
           
boolean fitsInt()
           
boolean fitsLong()
           
boolean fitsShort()
           
float floatValue()
           
int hashCode()
           
int intValue()
           
RealNumber invert()
           
long longValue()
           
RealNumber multiply(RealNumber n)
           
RealNumber negate()
           
RealNumber pow(RealNumber n)
           
int retryCompare(RealNumber n)
           
short shortValue()
           
RealNumber subtract(RealNumber n)
           
java.math.BigDecimal toBigDecimal(int precision)
           
java.math.BigInteger toBigInteger()
           
 
Methods inherited from class java.lang.Number
byteValue, doubleValue, floatValue, intValue, longValue, shortValue
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notifyAll, notify, toString, wait, wait, wait
 

Constructor Detail

AbstractRealNumber

protected AbstractRealNumber()
Constructs a new AbstractRealNumber object.
Method Detail

hashCode

public int hashCode()
Overrides:
hashCode in class java.lang.Object

equals

public final boolean equals(java.lang.Object o)
Overrides:
equals in class java.lang.Object

compareTo

public final int compareTo(RealNumber n)
                   throws java.lang.IllegalArgumentException,
                          CanNotCompareException
Description copied from interface:
Returns -1, 0 or 1 as this number is less than, equal to, or greater than n, where n is a real number. If this number cannot be compared with n, then n.retryCompare(this) should be called in order to try to let n compare to this. If that succeeds, the negative of the result may be returned. If fails, it will throw a CanNotCompareException.
Specified by:
compareTo in interface RealNumber

retryCompare

public int retryCompare(RealNumber n)
                throws java.lang.IllegalArgumentException,
                       CanNotCompareException
Description copied from interface:
Returns -1, 0 or 1 as this number is less than, equal to, or greater than n, where n is a real number. If this number cannot be compared with n, then a CanNotCompareException is thrown.
Specified by:
retryCompare in interface RealNumber

abs

public RealNumber abs()
Description copied from interface:
Computes |this|. The returned value is allways >= 0.
Specified by:
abs in interface RealNumber

negate

public RealNumber negate()
Description copied from interface:
Computes -this.
Specified by:
negate in interface RealNumber

invert

public RealNumber invert()
Description copied from interface:
Computes 1/this.
Specified by:
invert in interface RealNumber

add

public RealNumber add(RealNumber n)
                             throws java.lang.IllegalArgumentException
Description copied from interface:
Computes this+n, where n is a real number.
Specified by:
add in interface RealNumber

subtract

public RealNumber subtract(RealNumber n)
                                  throws java.lang.IllegalArgumentException
Description copied from interface:
Computes this-n, where n is a real number.
Specified by:
subtract in interface RealNumber

multiply

public RealNumber multiply(RealNumber n)
Description copied from interface:
Computes this*n, where n is a real number.
Specified by:
multiply in interface RealNumber

divide

public RealNumber divide(RealNumber n)
                                throws java.lang.IllegalArgumentException,
                                       java.lang.ArithmeticException
Description copied from interface:
Computes this/n, where n is a real number.
Specified by:
divide in interface RealNumber

pow

public RealNumber pow(RealNumber n)
                             throws java.lang.IllegalArgumentException
Description copied from interface:
Computes this**n, where n is a real number.
Specified by:
pow in interface RealNumber

fitsLong

public boolean fitsLong()
Description copied from interface:
Determines if the truncated value of this number fits in a long.
Specified by:
fitsLong in interface RealNumber

fitsInt

public boolean fitsInt()
Description copied from interface:
Determines if the truncated value of this number fits in an int.
Specified by:
fitsInt in interface RealNumber

fitsShort

public boolean fitsShort()
Description copied from interface:
Determines if the truncated value of this number fits in a short.
Specified by:
fitsShort in interface RealNumber

fitsByte

public boolean fitsByte()
Description copied from interface:
Determines if the truncated value of this number fits in a byte.
Specified by:
fitsByte in interface RealNumber

fitsDouble

public boolean fitsDouble()
Description copied from interface:
Determines if the rounded value of this number fits in a double.
Specified by:
fitsDouble in interface RealNumber

fitsFloat

public boolean fitsFloat()
Description copied from interface:
Determines if the rounded value of this number fits in a float.
Specified by:
fitsFloat in interface RealNumber

longValue

public long longValue()
Description copied from interface:
Returns the value of this number as a long. This may involve rounding.
Specified by:
longValue in interface RealNumber
Overrides:
longValue in class java.lang.Number

intValue

public int intValue()
Description copied from interface:
Returns the value of this number as an int. This may involve rounding.
Specified by:
intValue in interface RealNumber
Overrides:
intValue in class java.lang.Number

shortValue

public short shortValue()
Description copied from interface:
Returns the value of this number as a short. This may involve rounding.
Specified by:
shortValue in interface RealNumber
Overrides:
shortValue in class java.lang.Number

byteValue

public byte byteValue()
Description copied from interface:
Returns the value of this number as a byte. This may involve rounding.
Specified by:
byteValue in interface RealNumber
Overrides:
byteValue in class java.lang.Number

doubleValue

public double doubleValue()
Description copied from interface:
Returns the value of this number as a double. This may involve rounding.
Specified by:
doubleValue in interface RealNumber
Overrides:
doubleValue in class java.lang.Number

floatValue

public float floatValue()
Description copied from interface:
Returns the value of this number as a float. This may involve rounding.
Specified by:
floatValue in interface RealNumber
Overrides:
floatValue in class java.lang.Number

toBigDecimal

public java.math.BigDecimal toBigDecimal(int precision)
                                 throws java.lang.IllegalArgumentException
Description copied from interface:
Converts the value of this number to a BigDecimal with the specified precision. This method uses the ROUND_HALF_UP rounding mode as defined in BigDecimal.
Specified by:
toBigDecimal in interface RealNumber

toBigInteger

public java.math.BigInteger toBigInteger()
Description copied from interface:
Converts the value of this number to a BigInteger. This may involve rounding.
Specified by:
toBigInteger in interface RealNumber

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