Day: December 19, 2018

LinkedList

LinkedList The underlying data structure for LinkedList is double LinkedList. Insertion order is preserve. Duplicate objects are allowed. Heterogeneous objects are allowed. Null insertion is possible. Implements Serializable & Cloneable interface but not Random Access. LinkedList is not suitable if our frequent operation is not retrieval operation. Constructors:- LinkedList l = new LinkedList (); creates […]

Array List

Array List The underlying  data structure is resizeable Array or growable Array. Insertion order is preserved. Duplicate objects are allowed. Hetrogenious objects are allowed. Null insertion is possible. Constructors of ArrayList ArrayList l = new ArrayList () ↔   creates an empty ArrayList object with default intial capacity 10. ↔  If arraylist reaches its max […]