Question

I’m using JSoup and I’m doing some node traversal.

String myString;
NodeTraversor articleNodeTraversor  = new NodeTraversor(new NodeVisitor() {

            @Override
            public void tail(Node node, int depth) {
                //Do some processing.
                                    myString += "foo";
            }

            @Override
            public void head(Node node, int depth) { 
                //Do some processing.
            }
        });

Firstly, what is this kind of programming called? Visitor pattern? Secondly, the above code only works if myString is global. How can I make my string local to only the method it is being created in and still make the above work?

Thanks!

Answer 1

You are using anonymous classes, so they can access only final local variables outside of its context ( assuming its declared within a method )and any variable of the class ( static or non-static). Also you can declare variables within the inner class, BUT static non-final variable declarations are not allowed.