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Interview Questions – Strings, LInkedList, Stacks & Queues

Programmes / By / July 24, 2023 / 3 minutes of reading

Strings String Methods Useful Method and Description charAt(int index)Returns the char value at the specified index. compareTo(String anotherString)Compares two strings lexicographically. concat(String str)Concatenates the specified string to the end of this string. contains(CharSequence s)Returns true if and only if this string contains the specified sequence of char values. equals(Object anObject)Compares this string to the specified object. getBytes()Encodes this String into a sequence of bytes …

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Big O

DataStructure / By / July 20, 2023 / 3 minutes of reading

Introduction Big O is the metric used to describe the efficiency of algorithms and refers to the worst case for the algorithm. Time Complexity: An amount of time required to complete an algorithm.Space Complexity: An amount of space required by an algorithm. Factors for Time Complexity Scenarios 1) N Runtimes Example -: Find the sum …

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First React Application

Angular / By / July 20, 2023 / / 9 minutes of reading

Introduction Once We have covered some of the basic stuff about React App, we will be next looking at setting up an application and applying those concepts into an Application. We will be creating the following features for our APP. Login Page We will create a full-function login page, The Prerequisites for the login page …

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Getting Started with React

Angular / By / July 20, 2023 / 9 minutes of reading

Introduction React is a free and open-source front–end javascript library which was created by Facebook and donated as opensource in 2013. React is used for building user interfaces based on UI components. It is maintained by Meta and a community of individual developers and companies. Reacts are Single Page Applications, wherein DOM/ UI is loaded only …

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Top Easy Interview Coding Programs

Programmes / By / November 24, 2022 / / 3 minutes of reading

Introduction Top Easy Interview Coding Programs Reverse String Reverse String Without In buildAPI Swap Without Third Variable Find Repeating Words in a Sentence Check Prime Number Check Fibonacci Number Check Armstrong Number Check Palindrome Number Check Anagram String Generate Factorial Number Print Triangle Selection Sort

Getting started with Express

Backend / By / November 24, 2022 / 4 minutes of reading

Introduction Express was developed by independent developers Installation Step1:Create your node app Give a name to your app and skip the rest of the values to get your first node project npm init Step2: Add some utilities sudo npm install -g nodemon yarn Step3: Create an express project using yarn package manager yarn add express …

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Mongo Cheatsheet: Important Stuff

Databases / By / July 20, 2023 / 11 minutes of reading

Introduction MongoDB is a source available NoSQL DB from MongoDB corp and was first released in 2009. NoSQL rose to popularity due to its schema flexibility, and ability to scale horizontally as NoSQL uses the Base approach. Some salient points on NoSQL Mongo uses a slightly different naming convention than typical SQL DB’sTable -> CollectionRow …

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JavaScript Basics

Angular, Frontend / By / November 24, 2022 / , / 4 minutes of reading

Introduction JavaScript is one of the core technologies of the World Wide Web, alongside HTML and CSS. Over 97% of websites use JS on the client-side for web page behavior, often incorporating third-party libraries. JavaScript is a high-level, often just-in-time compiled language that conforms to the ECMAScript standard. History The first web browser with a graphical user interface, Mosaic, was released in 1993. The lead developers of Mosaic then founded the Netscape corporation, which …

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Jigsaw: Intro to Java Platform Module System

Java / By / November 24, 2022 / , / 7 minutes of reading

Introduction The idea and exploration of Project Jigsaw began in 2008 with the aim to split JDK into smaller parts. Work on the design and implementation for Java 9 began in 2014 and was released as part of JDK 9 in September 2017. The major purposes of JPMS are the following. A format for module JAR files Partitioning of the JDK …

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Springing Java Apps: Servlet and Reactive Ways

Spring / By / November 24, 2022 / / 7 minutes of reading

Spring Origins Spring is open source and has large community support due to its widespread acceptance. The first version was written by Rod Johnson and was released with an Apache license in 2003. Spring Source was the company founded by founders, which later got purchased by VMWare in 2008. As per Wikipedia, In April 2013, …

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