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How to use Firestore Database in ReactJS ?

Firebase is a comprehensive backend solution offered by Google that simplifies the process of building, managing, and growing applications. When developing mobile or web apps,… Read More

Firebase

React-Questions

Web technologies

ReactJS

Web Technologies

Can We Have Multiple Main Methods in Java?

Java is an object-oriented language all processing is carried within classes. Execution of a program means dictates java virtual machine to load the class and… Read More

Java

Java Quiz

Applications and Popularities of C++

C++ is a programming language, which has imperative and object-oriented programming(OOPs) features. It is referred to as a middle-level programming language. C++ was developed by… Read More

C++

Design Patterns in Java – Iterator Pattern

A design pattern is proved solution for solving the specific problem/task. We need to keep in mind that design patterns are programming language independent for… Read More

Java-Design-Patterns

Design Pattern

System Design

The dice problem

You are given a cubic dice with 6 faces. All the individual faces have a number printed on them. The numbers are in the range… Read More

DSA

Mathematical

Domino and Tromino tiling problem

\\Given a positive integer N, the task is to find the number of ways to fill the board of dimension 2*N with a tile of… Read More

Google

DSA

Dynamic Programming

Minimum count of 0s to be removed from given Binary string to make all 1s occurs consecutively

Given a binary string S of size N, the task is to find the minimum numbers of 0s that must be removed from the string… Read More

binary-string

DSA

Mathematical

Strings

IIIT Hyderabad Admission Experience for MS 2021

Its online interview my panel number was 6, after waiting for the whole day I got a call at 5 pm to join through the… Read More

Marketing

PhD

Experiences

Interview Experiences

Python – Create a List of Tuples

List and tuples both are data structures in Python, with some differences. Lists are mutable data structures whereas tuples are immutable (can not be changed… Read More

Picked

Python List-of-Tuples

python-list

python-tuple

Python

Shell Script to Perform Operations on a File

Most of the time, we use shell scripting to interact with the files. Shell scripting offers some operators as well as some commands to check… Read More

Linux-Shell-Commands

Picked

Shell Script

Linux-Unix

How to create Frame by Frame Animation using CSS and JavaScript ?

Frame by frame animation is a technique where a set of images are shown, one by one in a particular order, maintaining fixed time interval… Read More

CSS-Properties

CSS-Questions

JavaScript-Methods

JavaScript-Questions

Picked

CSS

JavaScript

Web Technologies

Interfaces and Polymorphism in Java

Java language is one of the most popular languages among all programming languages. There are several advantages of using the java programming language, whether for… Read More

java-interfaces

Java-Object Oriented

Picked

Java

How to Build a Simple Note Android App using MVVM and Room Database?

Android provides us a feature with which we can store users’ data inside their mobile itself with different storage options such as Shared Preferences, SQLite… Read More

ProGeek 2021

Android

Kotlin

ProGeek

Project

What is Android Activity “launchMode”?

Launch mode is an Android OS command that determines how the activity should be started. It specifies how every new action should be linked to… Read More

Picked

Android

ReactJS Reactstrap Modal Component

Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4.… Read More

Reactstrap

JavaScript

ReactJS

Web Technologies

Difference Between Spark DataFrame and Pandas DataFrame

Dataframe represents a table of data with rows and columns, Dataframe concepts never change in any Programming language, however, Spark Dataframe and Pandas Dataframe are… Read More

Picked

Python-pandas

Python-Pyspark

Difference Between

Python

Zscaler Interview Experience | On-Campus 2021

Hi all, Zscaler came for On-Campus Hiring in our College with two roles: DEV and DEVTEST. I was given the role of DEV JAVA API.… Read More

Marketing

On-Campus

ZScaler

Experiences

Interview Experiences

Lowe’s Interview Experience | Off-Campus 2021 (Virtual)

Lowe’s India hired this year through Codeathon on HackerEarth platform. Round 1: The first round comprised of 10 MCQ questions including aptitude, logical, and 2… Read More

Lowe's

Marketing

Off-Campus

Experiences

Interview Experiences

Cisco Ideathon- CX Interview Experence for Intern + FTE

Hello fellow Geeks! I’ll be sharing how I got selected as CX intern via Ideathon at Cisco(India). First of all, consistency is the key. Ideathon… Read More

Cisco

Marketing

Experiences

Internship

Interview Experiences

Lexicographically smallest string with period K possible by replacing ‘?’s from a given string

Given a string S consisting of N lowercase characters and character ‘?’ and a positive integer K, the task is to replace each character ‘?’… Read More

lexicographic-ordering

substring

DSA

Mathematical

Strings