Map in Java
A map in Java is a container object that stores elements in the form of key and value pairs. A key is a unique element (object) that serves as an “index” in the map. The element that is associated with…
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How to Iterate Set in Java
In this tutorial, we will learn how to iterate Set in Java with the help of examples. A set is a collection of unique elements or objects that are not stored in a particular order. Set interface does not provide…
HashSet in Java
HashSet in Java is an unordered collection of elements (objects) that contains only unique elements. That is, it allows duplicate free elements to be stored. It internally uses Hashtable data structure to store a set of unique elements. It is…
How to Iterate LinkedList in Java
In Java, LinkedList is a popular data structure that is an implementation of the List interface, meaning that it supports all the operations defined in the List interface, such as add, remove, and get. We frequently use it to store…
Set in Java
A set in Java is an unordered collection of unique elements or objects. In other words, a set is a collection of elements that are not stored in a particular order. Elements are simply added to the set without any…
LinkedList in Java
➲ LinkedList in Java is a linear data structure that uses a doubly linked list internally to store a group of elements. A doubly linked list consists of a group of nodes that together represents a sequence in the list.…
Vector Programs in Java for Best Practice
In this tutorial, we have listed various types of Vector programs in Java for best practice based on Vector methods, Enumeration, Iterator, and ListIterator. Before going to practice, it is recommended that you first read vector tutorial to clear basic…
Vector in Java
Vector class in Java was introduced in JDK 1.0 version. It is present in Java.util package. It is a dynamically resizable array (growable array) which means it can grow or shrink as required. Java Vector class is similar to ArrayList…
Use of ArrayList in Java
We have familiarized that an ArrayList is the most basic type of collection in Java. It uses an array internally to store data when we add elements to the array list. The ArrayList class automatically manages the size of the…