StringUtils.isNumeric¶

Signature: StringUtils.isNumeric(inputString)

Returns: Boolean result - true if inputString contains only digits or is empty

Checks if the inputString contains only digits. A decimal point is not a digit and returns false. null will return false. An empty ("") string will return true.

Parameters¶

Type	Name	Description	Default
String	inputString	the String to check, may be null

Example¶

StringUtils.isNumeric('This is not numeric');   // false
StringUtils.isNumeric('307.23');                // false (Decimal point makes this non-numeric) */
StringUtils.isNumeric('9899');                  // true