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Gopi Gorantala

Gopi is a software engineer with over 14 years of experience. He specializes in Java-based technology stack and has worked for various startups, the European government, and technology giants.

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Java Variables and Data Types

This is an introductory lesson on variables or different data types available in Java.

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What is Consumer Interface in Java?

This lesson talks about the first functional interface, which is the Consumer.

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A Detailed Guide On Java Built-In Functional Interfaces

This lesson details about the various functional interfaces that fall under major 4 categories.

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What Are Functional Interfaces in Java? With Examples

This is the introductory lesson on functional interfaces. Introduced in Java SE 8, these are powerful and most useful as either lambdas or method reference can use it.

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Introduction To Array Data Structure

This article is an introductory lesson on array data structure with sketches, memory diagrams, strengths, and weaknesses with examples.

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What is Declarative Programming? With Examples

In this lesson, you will learn declarative programming and the steps to achieve it. You will also be introduced to some real-world use cases for easy understanding.

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What Are The 3 Types Of Interfaces Available in Java?

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What is Immutability in Java Functional Programming?

In this lesson, you will learn how immutability is achieved through functional programming.

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What are Pure & Impure Functions?

This lesson details pure and impure functions with various examples for understanding.

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What Problems Does Functional Programming Solve in Java?

Functional programming solves almost all of the business use cases OOP solves. In fact, functional programming reduces bugs due to its immutability in nature.