3 Ways to Select Columns in Spark DataFrame
Selecting one or set of columns in a spark dataframe is an art of writing good code. There are many ways to do
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How to remove/hide featured image from single post ?
When a blogger writes a post and add a featured image for the thumbnail, the featured image also shows in the post which
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Spark Tutorial : How to create a spark dataframe from JSON | Pyspark 2
Step 1: Create a Spark Session Step 2: Define a JSON Step 3: Create a Spark DataFrame
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Spark Tutorial : How to create a spark session | Pyspark 2
Spark session is the entry point to programming Spark. An entry point is where control is transferred from the operating system to the
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Walkify – Earn Money By Walking
What is Walkify and How it Works Walking for 20-30 minutes in a day is a great way to improve your overall health.
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Walk and Earn Money – Play Station 4, IPhone, T-Shirts
Walk and Earn, Simple? Yes it is. StepSetGo app is a new sensation on Play-store. Prizes You Can Win By Daily Walking :-
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Error Codes in programming language – 404 200 500
Error..Error and Error. This is all about programmers. But we have a companion to get rid of this. Yes, we are talking about
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Numpy in Python – Examples of Multiplication, Array Creation
A human without brain can’t do anything, similarly python without packages are of no use. But fortunately,we have got a number of packages,
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Turtle Graphics in Python
Can you imagine to draw pictures using programming? Are you a good artist? Are you a good programmer? Then try to be both
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BlockChain
A blockchain is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and
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Dream11 – Earn Money in 3 Steps
Dream11 – Earn money with your cricketing knowledge. Use new joiner cash bonus of Rs. 500 and earn 1 Crore. Total of 11
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Blue Brain Technology
How a brain would be in blue in color? Then what is actually blue brain technology. Grab a cup of coffee and read
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How to use Smart Compose in Gmail?
Gmail Smart Compose – Does your day start and end with sending and receiving mails? Use of Smart Compose Auto Complete. Faster typing.
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Build a Chat Bot using Python
Do you think that you get bored when no one is there to interact with you or guide you. We cannot create a
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What is rainbow technology?
Rainbow – Rain+Sunlight, Right? Here, rain drops are large amount of data and sunlight is color and color combinations(VIBGYOR). Grab a cup of
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Agile and SCRUM
Confused? Are there any differences exist between Agile and SCRUM? What is Agile? What is SCRUM? Wait… Hope this is cleared from above
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What is Microservice? Art of writing Microservice
Microservice are everywhere, or at least so it seems because of such hype. My aim here is to try to cut through some
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Botnet of Things
With Internet of things come Botnet of things. It is the freebies that Internet of Thing provides. Everyone might have heard about Internet
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How to reduce apk size in android | Illustrative steps
Reducing the substantial size of android applications helps you to build your downloads. Did you abstain from downloading huge applications? What is apk? Android application package file (APK)
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As a software engineer, what’s the best skill set to have for the next 5-10 years?
If you think there is only one best skill you need to have as a software engineer for the next 5–10 years and
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Is Java Pure Object Oriented Programming Language?
Its’s been a long time when I wrote my last post. So I welcome myself with a word “pure object oriented”. Starting with
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APK file-Find a source code from apk file in android?
A number of you are interested about how to backtrack code of android application introduced in your advanced mobile phone or some of
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Why emulator speed in android is slow?-Install GenyMotion
Default Android emulator is prominently slow. Invent of Genymotion come as a dream in android developer’s life as far as the emulator is concerned
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What is Hadoop? How is it related with Big Data?
When I wrote about Big Data I mentioned that Big data is a problem and Hadoop is a solution for it. Let me
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What is Big Data? What are the characteristics and problems of Big Data?
Big Data is often related with Hadoop but you cannot compare Big Data and Hadoop as they are complimentary to each other. Understand
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What is Petya ? Is it Really a Ramsomware or it is a Wiper?
What is this fuss all around about Petya? Is it like WannaCry or worse than that? Computer viruses often spread farther than their
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Google Analytics shows wrong world map? or is it a smart move?
Google Analytics tracks and reports website traffic.But have you ever seen world map that is shown by google analytics? Google plays a safe
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What is Amazon Alexa?
Are you very busy that you don’t have time to book a cab or to order food or to schedule your daily tasks
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How to download paid android app for free ?
Downloading paid Android apps always hurt and especially when you got to know that your friend had done it for free.Follow below steps
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How to become an Amazon Alexa Developer?
In the last post,Alexa would have amazed your mind and now do you wonder if you would be able to develop skills for alexa?
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LOCO Quiz Game – Earn Money in Paytm
A new sensation has hit the android play-store with the name Loco Live Trivia & Quiz Game Show. You can earn up-to 100000 Rupee
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Getting started with Python | Installation | Hello World
An interpreted, object-oriented, high-level programming language with the name “python” is grabbing programmer’s attention. This is a 200 words blog post for beginners
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List in Collections of Java
Introduction:- List is ordered collection of objects (Integer, String etc). Duplicate values are allowed. List preserve insertion order of elements i.e it is
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Why do abstract classes in Java have constructors?
I am starting by clearing doubt of few techies that abstract classes do have constructor. Let us hear about few facts of abstract
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Brain Teaser – Guess which exception is thrown?
Guess I :- Which exception is thrown to the outer world? Exception of try block or exception of Finally block? public void FilePrinting()
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Java9 Features – Part I | JSHELL | Interface | Examples
Java9 is ready to roll on the minds of developer after Java8 brings revolution by introducing lambda. Most of the developers start compiling
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what is Fog Computing?
Numerous used to surmise that it is only a term that got viral on web with no foundation and presence. In any case,
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Bitcoin Tutorial 1 : What is a Bitcoin?
Bitcoin is a form of digital currency, created and held electronically. It is peer to peer cash system that no one controls. Bitcoins
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How to generate code coverage report in java? Jacoco | Graphical Report
Code coverage is a software metric used to measure how many lines of our code are executed during automated tests. Jacoco is code coverage
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Why they call it java and why java is represented by coffee beans or cup of coffee?
Why water is called water and sky is called sky? There is no answer for that but “why java is called java” have
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