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.
import org.apache.commons.lang3.StringUtils; public class Sample { public static void main(String args[]) { String str = ""; Boolean bool = StringUtils.isBlank(str); System.out.println(bool); } }
true