Collections Framework

• Interfaces and Classes of the Collections Framework

• Collection Interface in Java

• List Interface in Java

• ArrayList in Java Collections Framework

• Which is Faster - LinkedList or ArrayList? or When to use LinkedList over ArrayList?

• Use of java.util.LinkedList or LinkedList as Stack, Queue and Double-Ended Queue

• Converting from ArrayList to Array & from Array to ArrayList in Java

• Iterator Interface in Java Collection Framework

• ListIterator in Java Collection Framework with Examples

• Difference between fail-fast Iterator vs fail-safe Iterator in Java

• Difference between HashSet, LinkedHashSet and TreeSet in java

• Difference between HashMap, LinkedHashMap and TreeMap in java

• Use of LinkedHashMap or LRU(Least-Recently-Used) Caches using LinkedHashMap in Java

• keySet(), entrySet() and values() in Java Map

• Why override equals() and hashCode() methods of HashMap keys in Java

• TreeSet in Java with Examples

• Set operations: union, intersection, difference, symmetric difference, is subset, is superset - using TreeSet in Java