Classes, objects and constructors

Inheritance and extends keyword

Access modifiers: public, private, protected and default

super and final keywords

Multiple inheritance in Java

Method overloading and constructor overloading

Method overriding and polymorphism

Encapsulation and data hiding

Abstraction using abstract classes

Interfaces and object initialization

Exception handling fundamentals and hierarchy

try, catch, finally, throw and throws

User-defined exceptions

Collections Framework fundamentals

List, ArrayList and LinkedList

Set, HashSet and TreeSet

Map, HashMap and TreeMap

Vector, Stack, Enumeration, Dictionary and Properties

Generics and annotations

Thread class and Runnable interface

Thread model and lifecycle

start() and run() methods

Thread scheduling and concurrency

Deadlocks and synchronization

Synchronization using methods and blocks

Lambda expressions and method references

Static and default methods in interfaces

Filtering concepts

Java streams and stream types

Command-line arguments and BufferedReader

Scanner and DataInputStream

FileOutputStream and BufferedOutputStream

ByteArrayOutputStream and output streams

FileWriter and BufferedWriter

FileInputStream and BufferedInputStream

FileReader and SequenceInputStream

Reading and writing data

Creating folders, listing files and renaming files

File and folder deletion

Reading and writing Excel files

Frontend development overview

HTML structure, tags and elements

Semantic HTML, forms, tables and accessibility

CSS selectors, properties and box model

Flexbox, Grid and responsive web design

Sass/SCSS fundamentals

JavaScript variables, data types and functions

DOM manipulation and event handling

Conditions, loops, scope and functions

Arrow functions, template literals and destructuring

Callbacks, Promises and async/await

Introduction to React, Vue.js and Angular

Introduction to jQuery and D3.js

Bootstrap containers, grid, buttons and dropdown navigation

Servlet introduction and web terminology

Servlet lifecycle and working examples

HttpServletRequest and HttpServletResponse

Redirects, ServletConfig and ServletContext

Servlet attributes

Cookies and hidden form fields

URL rewriting and HttpSession

JSP introduction and lifecycle

JSP scripting elements and implicit objects

JSP page, include and taglib directives

JSP action elements and JavaBeans

Expression Language and MVC concepts

Installing MySQL and MySQL Workbench

Setting up a Hibernate project

Hibernate configuration

SessionFactory and Session

Creating entity classes

CRUD operations: create, read, update and delete

Hibernate Query Language (HQL)

Listing records using HQL

Filtering records with WHERE clauses

Updating and deleting records using HQL

Database connectivity and displaying records

Spring Framework setup and required software

Creating a Spring project

Inversion of Control (IoC)

Dependency Injection (DI)

Spring beans and autowiring

Constructor injection and Qualifier annotation

Spring MVC setup and project configuration

Model, View and Controller concepts

Request parameters and form handling

Radio buttons, dropdowns, text areas and checkboxes

Database connectivity with Spring MVC

DAO patterns and database operations

Maven fundamentals and project setup

Creating a Spring Boot application

Spring Boot web applications

Application properties and project packaging

Building RESTful web applications

GET, POST, PUT and DELETE operations

Testing REST APIs using Postman

AngularJS fundamentals and MVC patterns

Directives, routing, services and form validation

Node.js and npm fundamentals

Express.js APIs, middleware and routing

Error handling and API integration

Database-connected application projects

Testing, debugging and interview preparation