Hide Utility Class Constructor : Utility classes should not have a public or default constructor

Question

I am getting this warning on Sonar.I want solution to remove this warning on sonar. My class is like this :

public class FilePathHelper {
    private static Stri         


        

Answer 1

I use an enum with no instances

public enum MyUtils { 
    ; // no instances
    // class is final and the constructor is private

    public static int myUtilityMethod(int x) {
        return x * x;
    }
}

you can call this using

int y = MyUtils.myUtilityMethod(5); // returns 25.