Hi, I'm Gopi.
I am a software engineer with over 12 years of experience. I specialize in Java-based technology stacks. I have worked for multiple startups, the European government, and technology giants in India and Europe.
I've mostly taught myself and lived as a Digital Nomad. This site contains my learnings, experiences, tools, etc. My written notes cover the most trending software topics.
Mastering Arrays For Coding Interviews in Java
Arrays are fundamental data structures in computer science and serve as building blocks for complex ones.
How To Prevent cannot read property map of undefined
The "cannot read property map of undefined" error occurs when we try to call the map method on a variable that stores an undefined or null value.
How can I remove a specific item from an array in JavaScript?
Removing a specific item from an array is the most use case a developer runs into. You will learn more than 7 ways to achieve this.
Top 10 programming languages to learn in 2024
Introduction As we step into the arena of 2024, the demand for skilled software programmers continues to surge, and staying ahead of the curve is more crucial than ever. Choosing the right programming language to master can significantly impact your career path. We all know that the pandemic has commenced
Control Statements In Java
Introduction When you write code or a program, the program executes the blocks in the order in which they appear from top to bottom. Control flow statements help break up this execution flow by providing decision-making, looping, and branching capabilities, allowing your program to execute specific code blocks conditionally. In
Printing To The Console in Java
Introduction Printing something on the console or panel that displays important messages, such as errors, messages, or data outputs, directly for developers. In Java, you can print to the console using the System.out.println() method. Here's a simple example: System.out.println(100); prints 100 on the
Leetcode 217: Contains Duplicate
This question marks the first problem when working on duplicate data, either integers or strings etc. Companies that have asked this in their coding interview are Amazon, Apple, Netflix, Google, Microsoft, Adobe, Facebook, and many more top tech companies. Problem statement Given an integer array nums, return true if any
Leetcode 121: Best Time To Buy and Sell Stock
The Best time to buy and sell stock problem is a classic problem that can be solved using the Greedy approach. This is one of the most popular questions asked in such interviews. Companies that have asked this in their coding interview are Facebook, Amazon, Apple, Netflix, Google, Microsoft, Adobe,
Gopi Gorantala Newsletter
Join the newsletter to receive the latest updates in your inbox.