org.zkoss.pivot.impl.calc

Class Numbers

java.lang.Object

org.zkoss.pivot.impl.calc.Numbers

public class Numbers
extends Object

Utilities of arithmetic operations.

Author:

simonpai

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Numbers.MixedTypedNumber

Field Summary

Fields

Modifier and Type	Field and Description
static byte	DOUBLE Double type.
static byte	INTEGER Integer type.
static byte	LONG Long type.
static byte	NULL null value.

Constructor Summary

Constructors

Constructor and Description
Numbers()

Method Summary

Methods

Modifier and Type	Method and Description
static Number	divide(Number n, int divisor) Divide a Number by an int with automatic casting.
static byte	getTypeBound(Number n) Return the minimal variable type required to hold the number.

Methods inherited from class java.lang.Object

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

Field Detail

NULL

public static final byte NULL

null value.

See Also:

Constant Field Values

INTEGER

public static final byte INTEGER

Integer type.

See Also:

Constant Field Values

LONG

public static final byte LONG

Long type.

See Also:

Constant Field Values

DOUBLE

public static final byte DOUBLE

Double type.

See Also:

Constant Field Values

Constructor Detail

Numbers

public Numbers()

Method Detail

getTypeBound

public static byte getTypeBound(Number n)

Return the minimal variable type required to hold the number.

Returns:

either NULL, INTEGER, LONG, or DOUBLE

divide

public static Number divide(Number n,
            int divisor)

Divide a Number by an int with automatic casting.