Question

I would like to share a string across a couple of classes in java, however the string is not constant, so the usual method of public static final does not work.

I mean, I update the value of string, and this varies from use.

Currently the code I am using is:

public String NewDestination;

 destination = "D:/Documents/NetBeansProjects/printing~subversion/fileupload/web/Uploaded/"; // main location for uploads (CHANGE THIS WHEN USING PREDATOR)
            File theFile = new File(destination + "/" + username);
            theFile.mkdirs();// will create a sub folder for each user (currently does not work, below hopefully is a solution) (DOES NOW WORK)
            System.out.println("Completed Creation of folder");
            NewDestination = destination + username + "/";

Above, it is created from adding together destination + username + “/”, so it can not be static final as this changes on each log in, but I still need the value passed to another class, how can I do this ?

EDIT:

What I have now done is:

added public static String NewDestination; to my FileUploadController.java

and in my Mybean.java I added System.out.println(FileUploadController.NewDestination); and it still out prints null 🙁

Answer 1

It sounds like you want a public static non-final field.

However, this would allow other classes to change it too.
It would be better to make a private static field, and a public static getDestination() method to allow other classes to read it.