com.zentense.step2.util
Class Math

java.lang.Object
  com.zentense.step2.util.Math

public class Math
extends java.lang.Object

This bean does some basic mathematics operations

Version:

$Revision: 1.3 $

Author:

Jose R. Cabanes (aka Kurt)

Constructor Summary

Math()
Default constructor

Method Summary

static double	addPercent(java.lang.Number n1, java.lang.Number n2) Add percent to a number
static int	floor(java.lang.Number lim) Gives the floor nearest integer
static java.lang.String	formatAsEuros(java.lang.Number number) Format string as euros (two decimal places)
static java.lang.String	numberFormat(java.lang.Number number, java.lang.String pattern) Formats a number with a pattern
static java.lang.String	numberFormat(java.lang.Number number, java.lang.String pattern, java.util.Locale locale) Formats a number with a pattern
static java.lang.Number	parse(java.lang.String number) Parses a number from String using decault Locale
static java.lang.Number	parse(java.lang.String number, java.util.Locale locale) Parses a number from String using decault Locale
static int	random(java.lang.Number lim) Gives a pseudo-random integer between 0 and lim-1
static int	round(java.lang.Number lim) Gives the rounded nearest integer

Methods inherited from class java.lang.Object

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

Constructor Detail

Math

public Math()

Default constructor

Method Detail

random

public static final int random(java.lang.Number lim)

Gives a pseudo-random integer between 0 and lim-1

Parameters:

lim - Upper limit

Returns:

Math.rand() * lim

floor

public static final int floor(java.lang.Number lim)

Gives the floor nearest integer

Parameters:

lim - A double

Returns:

The floor integer

round

public static final int round(java.lang.Number lim)

Gives the rounded nearest integer

Parameters:

lim - A double

Returns:

Rounded integer

addPercent

public static final double addPercent(java.lang.Number n1,
                                      java.lang.Number n2)

Add percent to a number

Parameters:

n1 - Base number

n2 - Percent to be added to base

Returns:

n1 + n1*n2/100

numberFormat

public static final java.lang.String numberFormat(java.lang.Number number,
                                                  java.lang.String pattern,
                                                  java.util.Locale locale)

Formats a number with a pattern

Parameters:

number - A number

pattern - Pattern to be applied (something like ###,##0.00)

locale - Locale which be applied to formatted number

Returns:

A string containing formatted number

See Also:

java.util.NumberFormat

numberFormat

public static final java.lang.String numberFormat(java.lang.Number number,
                                                  java.lang.String pattern)

Formats a number with a pattern

Parameters:

number - A number

pattern - Pattern to be applied (something like ###,##0.00)

Returns:

A string containing formatted number

See Also:

java.util.NumberFormat

parse

public static final java.lang.Number parse(java.lang.String number)

Parses a number from String using decault Locale

Parameters:

number - A number represented as a String

Returns:

Parsed number or null

See Also:

java.util.NumberFormat

parse

public static final java.lang.Number parse(java.lang.String number,
                                           java.util.Locale locale)

Parses a number from String using decault Locale

Parameters:

number - A number represented as a String

locale - Locale to be used for parsing

Returns:

Parsed number or null

See Also:

java.util.NumberFormat

formatAsEuros

public static final java.lang.String formatAsEuros(java.lang.Number number)

Format string as euros (two decimal places)

Parameters:

number - A number

Returns:

The number formatted with pattern ###,###,###,##0.00