AWS Cloud Practitioner-Intro The AWS Cloud Practitioner certificate is an entry-level credential that introduces the basics of cloud computing and AWS services whichl also include cloud concepts, pricing, security, and the global infrastructure.

Java Object-Oriented Programming Three major Object-Oriented Programming (OOP) concepts in Java are Encapsulation, Inheritance, and Polymorphism.

Java Java is a programming language and computing platform first released by Sun Microsystems in 1995, and it is owned by Oracle, and more than 3 billion devices run Java.

Longest Substring Without Repeating Characters Question Given a string s, find the length of the longest substring without repeating characters.

Add Two Numbers Question You are given two non-empty linked lists representing two non-negative integers.

Two Sum Question Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.