ewe.math
Class Number

java.lang.Object
  ewe.math.Number

Direct Known Subclasses:

BigDecimal, BigInteger

public abstract class Number

extends Object

Number is a generic superclass of all the numeric classes, including the wrapper classes Byte, Short, Integer, Long, Float, and Double. Also worth mentioning are the classes in java.math. It provides ways to convert numeric objects to any primitive.

Since:

1.0

Field Summary

static double	DOUBLE_MAX_VALUE
static double	DOUBLE_MIN_VALUE
static int	INTEGER_MAX_VALUE
static int	INTEGER_MIN_VALUE
static long	LONG_MAX_VALUE
static long	LONG_MIN_VALUE
static double	NEGATIVE_INFINITY
static double	POSITIVE_INFINITY

Constructor Summary

Number()
The basic constructor (often called implicitly).

Method Summary

byte	byteValue() Return the value of this Number as a byte.
static int	digit(char ch, int radix)
abstract double	doubleValue() Return the value of this Number as a double.
abstract float	floatValue() Return the value of this Number as a float.
static char	forDigit(int digit, int radix)
abstract int	intValue() Return the value of this Number as an int.
static boolean	isInfinite(double value)
static boolean	isNaN(double value)
abstract long	longValue() Return the value of this Number as a long.
short	shortValue() Return the value of this Number as a short.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, toString

Field Detail

NEGATIVE_INFINITY

public static final double NEGATIVE_INFINITY

POSITIVE_INFINITY

public static final double POSITIVE_INFINITY

DOUBLE_MAX_VALUE

public static final double DOUBLE_MAX_VALUE

DOUBLE_MIN_VALUE

public static final double DOUBLE_MIN_VALUE

INTEGER_MAX_VALUE

public static final int INTEGER_MAX_VALUE

See Also:

Constant Field Values

INTEGER_MIN_VALUE

public static final int INTEGER_MIN_VALUE

See Also:

Constant Field Values

LONG_MAX_VALUE

public static final long LONG_MAX_VALUE

See Also:

Constant Field Values

LONG_MIN_VALUE

public static final long LONG_MIN_VALUE

See Also:

Constant Field Values

Constructor Detail

Number

public Number()

The basic constructor (often called implicitly).

Method Detail

intValue

public abstract int intValue()

Return the value of this Number as an int.

Returns:

the int value

longValue

public abstract long longValue()

Return the value of this Number as a long.

Returns:

the long value

floatValue

public abstract float floatValue()

Return the value of this Number as a float.

Returns:

the float value

doubleValue

public abstract double doubleValue()

Return the value of this Number as a double.

Returns:

the double value

byteValue

public byte byteValue()

Return the value of this Number as a byte.

Returns:

the byte value

shortValue

public short shortValue()

Return the value of this Number as a short.

Returns:

the short value

digit

public static int digit(char ch,
                        int radix)

forDigit

public static char forDigit(int digit,
                            int radix)

isInfinite

public static boolean isInfinite(double value)

isNaN

public static boolean isNaN(double value)