StringUtils.isAlpha¶
Signature: StringUtils.isAlpha(inputString)
Returns: Boolean result - true if inputString contains only letters or is empty
Checks if the inputString contains only letters. null will return false. An empty ("") string will return true.
Parameters¶
| Type | Name | Description | Default |
|---|---|---|---|
| String | inputString | the String to check, may be null |