Collection interface and helper methods

• Fill a collection
• Get the difference of two collections
• Get the min value within a collection
• Is collection empty, and all of its elements are empty
• Make a Collection Read-Only
• Make a collection an immutable collection
• Sort custom class and user defined Comparator

1. Collection, Data Structure
2. Algorithm
3. Collection interface and helper methods
4. Compare
5. Iterable
6. Iterator
7. LinkedHashMap
8. LinkedHashSet
9. LinkedList
10. List
11. ListIterator
12. Map
13. Properties
14. Queue
15. Set
16. Stack
17. TreeMap
18. TreeSet