StringUtils.isAlphanumeric¶

Signature: StringUtils.isAlphanumeric(inputString)

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

Checks if the inputString contains only letters or digits. 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.isAlphanumeric('SPACES ARE NOT ALPHANUMERIC 24324');                    // false
StringUtils.isAlphanumeric('IFALLTHELETTERSARE723492929alphaNumericRETURNTRUE');    // true