What is spring StringUtils?
public abstract class StringUtils extends Object. Miscellaneous String utility methods. Mainly for internal use within the framework; consider Apache’s Commons Lang for a more comprehensive suite of String utilities.
What is StringUtils HasText?
HasText�Method� Checks if a String has text.
What is StringUtils isBlank?
StringUtils. isBlank() checks that each character of the string is a whitespace character (or that the string is empty or that it’s null). This is totally different than just checking if the string is empty. From the linked documentation: Checks if a String is whitespace, empty (“”) or null.
What does StringUtils empty return?
StringUtils. EMPTY is final, so it won’t initialize the class.
Is StringUtils trim null safe?
Operations on String that are null safe. The StringUtils class defines certain words related to String handling. StringUtils handles null input Strings quietly. That is to say that a null input will return null .
What is StringUtils trimToNull?
Removes control characters (char <= 32) from both ends of this String returning null if the String is empty (“”) after the trim or if it is null . public static String trimToNull(String str)
Are string utils empty?
StringUtils. isEmpty() is used to find if the String has length zero or value is null. StringUtils. It not only checks if the String has length zero or value is null, but also checks if it is only a whitespace string, i.e. “\s*”.
Should I use StringUtils empty?
I use StringUtils. EMPTY , for hiding the literal and also to express that return StringUtils. EMPTY was fully expected and there should return an empty string, “” can lead to the assumption that “” can be easily changed into something else and that this was maybe only a mistake. I think the EMPTY is more expressive.
Is empty or is blank?
isBlank() vs isEmpty() Both methods are used to check for blank or empty strings in java. The difference between both methods is that isEmpty() method returns true if, and only if, string length is 0. isBlank() method only checks for non-whitespace characters. It does not check the string length.