Java: can't properly implement custom Iterator
49
What is a NullPointerException, and how do I fix it?
138381
Why typical Array List implementations aren't double-ended?
79356
How to get the array index or iteration number with an each iterator?
62369
Iterate through a HashMap
123204
Why are Exceptions iterable?
142239
Java "ConcurrentModificationException" runtime error when iterating .next()
124961
Do Apex collections implement iterable?
9692
Build a basic Python iterator
17877
Why are local variables not initialized in Java?
42612
Generics, arrays, and the ClassCastException
85791
Cannot create an array of LinkedLists in Java...?
121539
Why doesn't Java offer operator overloading?
137403
How to best implement Equals for custom types?
10361
Iterator invalidation rules
108307
How do I sort a generic list using a custom comparer?
146683
STL algorithms: Why no additional interface for containers (additional to iterator pairs)?
106451
Why does ostream_iterator not work as expected?