how can i share a linked list between two classes

Question

supposed i created a linked list in class A how can class B access it? please give me some examples if any many thanks

Answer 1

One way is to pass the list to both classes through a constructor.

List<X> list = new LinkedList<X>();
A a = new A(list);
B b = new B(list);

Answer 2

If the linked list is maintained by class A. You should create an interface that can be used by class B.

I can think of:

• Add, to add to the linked list
• Delete, to delete from the linked list
• Replace, to replace an item
• Lookup, to get an item from the list.
• Length, to get the length of the list.

And there are possibly more (like an iterator) but it should suit your needs.

An other option is to create it outside class A and B and pass it to the classes at construction.

Answer 3

any other methods?

Answer 4

Does it have to be a linked list? if you use a different structure that you can control the memory space of, you can use shared memory nicely.