com.googlecode.jmxtrans.util

Class NumberUtils

java.lang.Object

com.googlecode.jmxtrans.util.NumberUtils

public final class NumberUtils
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isNumeric(Object value) Useful for figuring out if an Object is a number.
static boolean	isNumeric(String str) Deprecated. There is already a dependency in this project on Apache common-lang, so you should probably use org.apache.commons.lang.math.NumberUtils.

Methods inherited from class java.lang.Object

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

Method Detail

isNumeric

public static boolean isNumeric(Object value)

Useful for figuring out if an Object is a number.

isNumeric

@Deprecated
public static boolean isNumeric(String str)

Deprecated. There is already a dependency in this project on Apache common-lang, so you should probably use org.apache.commons.lang.math.NumberUtils.

Checks if the String contains only unicode digits. A decimal point is a digit and returns true.

null will return false. An empty String ("") will return true.

 StringUtils.isNumeric(null)   = false
 StringUtils.isNumeric("")     = true
 StringUtils.isNumeric("  ")   = false
 StringUtils.isNumeric("123")  = true
 StringUtils.isNumeric("12 3") = false
 StringUtils.isNumeric("ab2c") = false
 StringUtils.isNumeric("12-3") = false
 StringUtils.isNumeric("12.3") = true
 

Parameters:

str - the String to check, may be null

Returns:

true if only contains digits, and is non-null