Irfan Khan
I’m a software programmer having more than 5 years of development experience in Java and related technology. I write technical content as well and love to share the technical knowledge to make it available for all.
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Posts by Irfan Khan

TreeMap in Java | Usage with Coding Examples

In Java, TreeMap is a class that implements the Map interface and provides a red-black tree-based implementation of a map. It stores data into key-value pairs in a sorted...
Irfan Khan
26 Apr, 23

LinkedHashMap in Java | Code, Examples, Advantages (Complete Guide)

What is LinkedHashMap in Java? LinkedHashMap is a class in the Java Collections Framework that extends the HashMap class. It is a data structure that stores key-value pairs...
Irfan Khan
25 Apr, 23

Default Methods in Java 8 Interface | Code Examples Explained

What is Default Method in Java Interface? In Java, a default method is a method that has a default implementation and can be overridden by a class implementing the...
Irfan Khan
24 Apr, 23

Functional Interface in Java 8 | Code Examples Explained

What is Functional Interface in Java? A functional interface in Java is an interface with a single abstract method. This allows it to be used as the target type for a lambda...
Irfan Khan
24 Apr, 23

Java TreeSet Class | Complete Tutorial | Explained with Coding Examples

The TreeSet class in Java is a member of the Java Collections Framework and is implemented as a red-black tree. It is a Set data structure that stores unique elements in...
Irfan Khan
31 Mar, 23

LinkedHashSet in Java with Code and Examples

In Java, a LinkedHashSet is a class that implements the Set interface and is based on a linked list data structure. It maintains the elements in the order they were added, and...
Irfan Khan
16 Mar, 23

Java Array | Declaration, Initialization, Example Code

Array in Java is an important concept and, in this article, we are going to understand the array and its working. Java array is an object that is used to hold multiple...
Irfan Khan
17 Aug, 22

Linked List in Java | Explained with Coding Example

LinkedList Introduction LinkedList is one of the most important data structures that is used to store data in computer memory. It is a non-continuous and linear data structure...
Irfan Khan
02 Aug, 22