Through this blog, I will be sharing how can we make a custom iterator in Java. Iterators can come in handy in many situations. An iterator is basically an object which can help us to go over a collection, it can serve as an alternative to foreach loop. So let’s explore more about custom iterators …
The collection is a framework in java. It contains some of the most used classes which are present in the interfaces. Collection interface mainly has 3 child interfaces and these are as follows. Image Source 1. List It contains an order of all the objects. This interface also helps you to have a dynamic size …
TreeSet is an implementation class of NavigableSet. In a TreeSet, duplicate as well as heterogenous (values of different data types) values are not allowed. If you’re trying to insert heterogeneous objects then it displays a ClassCastException. If the tree set exists, then we can insert a null value, and if the treeset doesn’t exist then …
In this tutorial you will learn about Java LinkedList class. Linked list is a linear data structure that contains nodes. Node stores data and reference to the next node. Java provides us in built classes and methods for creating and handling of linked list. So using linked list in java so easy. Also Read: Java Singly …
Here you will learn about difference between Hashtable and HashMap in Java. Both Hashtable and HashMap are data-structure based upon hashing and implementation of Map interface, and almost seems to be similar but there is significant difference between both which is described as follows. Characteristic Hashtable HashMap Synchronization Hashtable is synchronized internally. Synchronization means that …
Difference between Hashtable and HashMap in Java Read More »
Here you will learn about difference between arraylist and linkedlist in java i.e. arraylist vs linkedlist. Both ArrayList and LinkedList are similar in many ways like both implement List interface and are non-synchronized. But still there are various differences between them which I have discussed below. Also Read: Difference between ArrayList and Vector in Java Image …
Difference between ArrayList and LinkedList in Java Read More »
Here you will get to know the difference between ArrayList and Vector in Java programming language. ArrayList It is a class in Java that implements List interface. Unlike traditional array data structure, it is not fixed in length and doesn’t require its size to be specified in order to declare it. They can grow and …
Here you will learn about difference between array and arraylist in java. Both array and arraylist are most important and frequently used data structure in java. Below I have discussed about various differences between them. Difference between Array and ArrayList in Java Property Array ArrayList Size Array is fixed in size. Once declared, its …
