Jones alapat

DS Implementation – LinkList, ArrayList, HashMap & Stack

LinkList Methods add(E e)Appends the specified element to the end of this list. addAll(Collection<? extends E> c)Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection’s iterator. clear()Removes all of the elements from this list. clone()Returns a shallow copy of this LinkedList. contains(Object o)Returns true if …

DS Implementation – LinkList, ArrayList, HashMap & Stack Read More »

Interview Questions – Strings, LInkedList, Stacks & Queues

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 …

Interview Questions – Strings, LInkedList, Stacks & Queues Read More »

Big O

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 …

Big O Read More »

First React Application

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 …

First React Application Read More »

Getting Started with React

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 …

Getting Started with React Read More »

Top Easy Interview Coding Programs

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

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 …

Getting started with Express Read More »

Mongo Cheatsheet: Important Stuff

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 …

Mongo Cheatsheet: Important Stuff Read More »

JavaScript Basics

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 …

JavaScript Basics Read More »

Jigsaw: Intro to Java Platform Module System

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 …

Jigsaw: Intro to Java Platform Module System Read More »

error: Content is protected !!
Scroll to Top