If I make a number of objects in an ArrayList I can keep track of the objects by using their order within the list. But if objects is deleted other objects created later then the deleted objects will get a new "number" in the list and I can no longer track these objects.
My way to solve this problem is by giving all objects a variable called "id" and every time I want to reach an object in the list I need to check all objects if their id match with the one I'm looking for.
My question is:
Is there a more simple way of keeping track of your objects in an ArrayList?
Example (if I want to find the object which initially was number 6):
stuff = new ArrayList();
class Thing{
int id;
Thing(int a)
id = a;
}
for(int i = 0; i < 10; i++) stuff.add(new Thing(i));
