Java

Enumeration Iterator ListIterator Cursor in Java | Three types of cursors to retrieve elements from all types of collection objects:- All these are interfaces. Their subclasses are created by SUN as inner classes inside collection classes. These subclass objects are returned via factory methods. These factory methods are also defined inside collection classes. So these […]

NavigableSet and NavigableMap Interface in Java |  Java 1.6 Version Enhancement in Collection Framework | As part of the 1.6 version the following 2 concepts were introduced in the collection framework:- NavigableSet Interface in Java NavigableSet is the child interface of SortedSet and it defines several methods for navigation purposes. NavigableSet defines the following methods:-

Queue and PriorityQueue in Java | Queue is the child interface of the Collection interface. In this blog, we will discuss the Queue interface and PriorityQueue class along with constructors, methods, and example programs. Implementation classes:- If we want to represent a group of individual objects before processing then we should go for Queue. For

Map HashMap LinkedHashMap TreeMap in Java | We have seen the Collection overview, List Interface, and their child classes ArrayList, LinkedList, Vector, and Stack. We have also seen Set implementation classes HashSet, LinkedHashSet, SortedSet interface, and TreeSet class along with the role of Comparator and Comparable marker interfaces. Here we will discuss the Map interface

Comparable and Comparator Interfaces in Java | Both Comparable and Comparator interfaces are used in the sorting of elements. Let us see them in detail. Comparable Interface In Java It is present in java.lang package and it contains only one method compareTo(). Method Signature:- public int compareTo(T o); In most of the pre-defined classes including

HashSet, LinkedHashSet, and TreeSet in Java | HashSet, LinkedHashSet, SortedSet, and TreeSet implement the Set interface and indirectly implement the Collection interface. Previously we have seen List interface implementation classes ArrayList, LinkedList, Vector, and Stack. This post will show examples of the Set interface implementation classes with constructors, and sample programs. The Set is a child interface

ArrayList, LinkedList, Vector & Stack in Java | The ArrayList, LinkedList, Vector, and Stack implement the List interface, and indirectly implement the Collection interface. This post will show examples of the List interface implementation classes with constructors, and sample programs. ArrayList Class in Java It has dynamic resizing – 50% of the original size. Whenever