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Kumar Harsh
Kumar Harsh

Kumar is a young technical writer, covering topics like JavaScript, Python, Ruby and Web Performance. He is currently working towards a bachelors degree in Computer Science and Engineering at National Institute of Technology Patna. Along with writing, he has also worked in software development roles with several start-ups and corporations alike. He joined the Career Karma team in January 2021.

PowerShell: Courses, Trainings, and Other Resources

The command-line interface is a powerful and common tool that programmers and security professionals alike use every day. Linux has a very powerful command-line interface
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Print Java ArrayList: A Complete Guide

ArrayLists have been a trending topic in Java. They provide you with many more benefits than standard arrays. ArrayLists allow you to efficiently store objects in a row a
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Java: Could Not Find Or Load Main Class

When working with Java, the final execution of code happens via pre-compiled classes. Once you write a class in Java, the compiler converts your high-level source code in
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How to Solve java.lang.NullPointerException Error

You must have come across something called a NullPointerException if you have worked on Java-based applications. The Null Pointer Exception is one of the most common erro
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Hadoop: Courses, Trainings, and Other Resources

Do you wonder how data in large applications like YouTube is managed? How is one video streamed to millions of devices at the same time? There is a format to process such
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What is a GPU?

Have you ever wondered: how do graphics-intensive games get rendered on a computer screen? How does an entire Minecraft universe play so smoothly on a standard computer?
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MongoDB: Courses, Trainings, and Other Resources

If you have worked with any real-time application, you must have stumbled across the task of storing data. Traditionally, data storage has been carried out in well-define
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What is a VPN?

Security and privacy are two important pillars to a successful online venture today. While these are implemented through a number of solutions, an important step in makin
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Kotlin: Courses, Trainings, and Other Resources

Have you ever wondered how Android applications work? How are the apps that help you in your day-to-day activities created? There certainly is a whole ecosystem of framew
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Python pip: A Complete Guide

You have probably seen the pip command somewhere in the Python documentation. If you have ever stumbled across any third-party library in Python, you know that the first
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Python print(): A Complete Guide

Suppose you have a variable in a Python program. You may want to know the content that the variable points to, to be able to figure out whether your program is running as
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What is an ALU?

Ever wonder how a mobile phone as small as a credit card does many things? Seeing technology around us getting smaller and more powerful is amazing. Making devices more c
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Kali Linux: Courses, Trainings, and Other Resources

Have you wondered how a computer system is protected against cyber-attacks? Or how do popular systems prevent their data from unauthorized hands? The answer to these lies
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What is RAID Storage?

Storing data is one of the fundamental uses of a computer system. There are multiple kinds of storage solutions available, and each one of them has different advantages a
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Tableau: Courses, Trainings, and Other Resources

How do you analyze data in modern times? Are you still sticking to the old ways of managing large spreadsheets with bar graphs and pie charts? Does your data analysis too
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NumPy: Courses, Trainings, and Other Resources

The Python framework is often used for data analysis and manipulation. But, Python does not out-of-the-box offer any advanced tools for these tasks. Lists in Python are v
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npm: Courses, Trainings, and Other Resources

npm is a package manager for NodeJS based environments. It is one of the most important tools you need to set up and efficiently manage JavaScript projects. To waste less
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Unix: Courses, Trainings, and Other Resources

Unix is an operating system that was developed in the Bell Laboratories of AT&T. An operating system is a software that manages the hardware resources of a computer s
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What is a Binary File?

Binary files are a type of files that are used to store data in the form of contiguous bytes, in which the method of reading is not defined. This means that the program t
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How to Learn PostgreSQL

PostgreSQL is an open-source relational database management system developed by a worldwide team of volunteers. No single corporation or private entity controls PostgreSQ
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