Question

I will be using an iterator to loop through a collection of objects in Java. I am a little confused about using an Iterator however (used to using for each loop). let say I have code like this:

Iterator<Organization> orgIter = orgs.iterator();
while (orgIter.hasNext()) {
    Organization orgObj = orgIter.next();
    orgObj.setChildOrgsTree(generateOrgChildTree(orgObj, new ArrayList<Organization>()));
}

I create a new object and then change the fields inside the object. My plan was to then set the original object I formed the iteroter out equal to a List of this Object that I create (List is not shown above, but I just figured out that I would need it).

But it would be so much easier if I didn’t have to create a new Object to do all of this. Is there a way I can get the current object and mutate that?

Answer 1

Try this:

for(Organization org : orgs)
    org.setChildOrgsTree(generateOrgChildTree(org, new ArrayList<Organization>());