Does StringUtils isNotBlank check for null?
StringUtils. isNotBlank() takes it a step forward. It not only checks if the String is not empty and not null, but also checks if it is not only a whitespace string.
How do you do a null check with StringUtils?
We can check whether a particular String is empty or not, using isBlank() method of the StringUtils class. This method accepts an integer as a parameter and returns true if the given string is empty, or false if it is not.
Is StringUtils empty null?
A side effect of the null handling is that a NullPointerException should be considered a bug in StringUtils ….org.apache.commons.lang3. Class StringUtils.
| Method Summary | |
|---|---|
| static String | defaultString(String str) Returns either the passed in String, or if the String is null , an empty String (“”). |
What does StringUtils isBlank do?
The StringUtils isBlank() is a static method which return type is boolean and accepts CharSequence as a parameter. Syntax – public static boolean isBlank(final CharSequence cs); It returns true if any string is null or the length of the string is zero string is whitespace.
What does StringUtils empty return?
StringUtils. EMPTY. equals(someString) will result in a Syntax error if you write it incorrectly.
What is the difference between isNotBlank and isNotEmpty?
isNotBlank(inputString) Returns true if the specified String is not whitespace, not empty (”), and not null; otherwise, returns false. isNotEmpty(inputString) Returns true if the specified String is not empty (”) and not null; otherwise, returns false.
What is StringUtils HasText?
HasText Method Checks if a String has text.
What is StringUtils cleanPath?
cleanPath. public static String cleanPath(String path) Normalize the path by suppressing sequences like “path/..” and inner simple dots. The result is convenient for path comparison. For other uses, notice that Windows separators (“\”) are replaced by simple slashes.
How do I check if a list is null?
The isEmpty() method of List interface in java is used to check if a list is empty or not. It returns true if the list contains no elements otherwise it returns false if the list contains any element.