org.zkoss.pivot.impl.calc
Class Numbers

java.lang.Object
  org.zkoss.pivot.impl.calc.Numbers

public class Numbers
extends java.lang.Object

Utilities of arithmetic operations.

Author:

simonpai

Nested Class Summary

static class

Numbers.MixedTypedNumber

Field Summary

static byte	DOUBLE Double type.
static byte	INTEGER Integer type.
static byte	LONG Long type.
static byte	NULL null value.

Constructor Summary

Numbers()

Method Summary

static java.lang.Number	divide(java.lang.Number n, int divisor) Divide a Number by an int with automatic casting.
static byte	getTypeBound(java.lang.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(java.lang.Number n)

Return the minimal variable type required to hold the number.

Returns:

either Numbers.NULL, Numbers.INTEGER, Numbers.LONG, or Numbers.DOUBLE

divide

public static java.lang.Number divide(java.lang.Number n,
                                      int divisor)

Divide a Number by an int with automatic casting.