Java Web Track - Online Learning with Certificate

Java Web

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Updated 01/2026

Dive into the world of Java web development with this comprehensive track. From mastering relational databases and SQL to building robust backend appl…

219

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Learning hours

279

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Track content

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What you will learn

Design and optimize relational databases

Build scalable apps with Spring Boot

Join multiple tables in SQL

Write and manage SQL queries

Improve performance with Redis caching

Create and manage HTML forms

Use Hibernate for data persistence

Group and filter data with SQL

Develop RESTful APIs with Spring Boot

Learning track content

This section dives into the world of relational and non-relational databases, teaching you how to visually represent database structures.

Introduction

Difference between Relational and Non-relational Databases

Entity-Relationship Model

Entity-Relationship Model. Relationships

We'll dive deep into relational databases, giving you a thorough understanding of essential concepts. This includes topics like foreign keys, various ON DELETE options, and the different types of relationships.

Structure. Primary Key and Foreign Key

Foreign Key Constraints. ON DELETE Options

Many-to-One and One-to-Many

One-to-One and Many-to-Many

Ready to build a database? This section will hone your skills, emphasizing the importance of a well-structured database for peak performance. Here, you'll grasp the fundamental principles of crafting user-friendly databases.

This section will introduce you to coding in SQL. It will start with some basic information related to SQL and SQL Databases in general, eventually moving towards writing basic SQL queries. The section also includes some fun exercises where you will get to practice the SQL syntax.

What is SQL?

Setting Up SQL and SSMS

Getting Familiar with SSMS

Structure of an SQL Database System

The SELECT Statement

Challenge: First Day as a Librarian

Challenge: Find all Book Titles

Challenge: Find Book Titles and Authors

The DISTINCT Keyword

Challenge: Find all Genres

We will get an introduction to filtering data from our selections. This will give us control over what kind of data we fetch from the database. This section will cover the syntax for filtering data and various operators which can help us write robust conditions for conditional selection of data.

The WHERE Clause

Challenge: Help a Reader Find Their Favorite Genre

Challenge: Fetching Older Books

Conditional Expressions: Comparison Operators

Challenge: Avoid the Damaged Books

Challenge: Highlight New Arrivals

Challenge: Budget-Friendly Books

Conditional Expressions: The AND Operator

Challenge: Find Specific Books for a Reader

Challenge: Defining Ranges

Challenge: Multiple Conditions

Conditional Expressions: The OR Operator

Challenge: Matching Multiple Options

Challenge: Excluding A Range

Conditional Expressions: The NOT Operator

Challenge: Negating a Range

This section focuses on concepts related to sorting the tables based on the column values. Sorting can be useful in extracting the minimum or maximum values from a column or for making it easier to find relevant information quickly. We will also look at a keyword which can help us limit the number of rows that are fetched by our SELECT statements, making our queries more concise.

Basic Sorting

Challenge: Sorting the Library Catalogue

Sorting by Multiple Columns

Challenge: Further Sorting the Catalogue

Sorting after Filtering Data

Challenge: Find the Cheapest Books

Challenge: Help a Customer Find a Book

The LIMIT Keyword

Challenge: Select Books for the Collector's Section

Challenge: Affordable Books

You will learn about useful queries and keywords that can help us in populating a database with some data. This will include queries for creating tables, and for inserting rows into those tables. We will also cover two additional keywords that can help us in making our tables more intractable and robust.

Creating a Table

Challenge: Creating a new Books Table

Inserting Rows into a Table

Challenge: Inserting Data

Challenge: Inserting More Data

Inserting Multiple Rows

Challenge: Inserting Bulk Data

Primary Keys

The SERIAL Keyword

Challenge: Changing the Books Structure

Specifying Default Values

Challenge: Further Improving the Books Table

We will look at how to modify or delete data in an SQL database. This will include queries for updating or deleting rows in a table and making a copy of a table or deleting it.

Updating Rows in a Table

Challenge: Correct Book's Data

Challenge: Updating Page Counts

Challenge: Mark Archived Books As Unavailable

Deleting Rows

Challenge: Deleting Outdated Records

Duplicating Tables

Challenge: Create a Table Backup

Challenge: Generate a Summarized Books Table

Deleting Tables

In this section, you will learn how to group and manage data effectively. We will introduce the GROUP BY operator for grouping data. Additionally, you will learn how to filter grouped data using the HAVING operator.

GROUP BY Clause

Order of Statements

Challenge: Total Ride Time for Each Subway Line

Challenge: Average Student's Grade

Searching for the Top Math Students Challenge

HAVING Clause

Several Aggregate Functions in the Query

More Complex Filtering

You will learn about nested subqueries, how to create them, and how to use them effectively.

Nested Queries

Challenge: Non-tech Department Employees

Using Inner Subqueries in the FROM Section

Challenge: Employees With More Than Average Salary

UNION Clause

Challenge: Combining Table Results

Here, you will learn how to combine multiple tables, allowing you to work with a unified table and simplify query creation.

JOIN 2 Tables

Challenge: Get Category By Product Price

Challenge: Get Minimum Price By Category

Challenge: Get Product Amount By Category

LEFT, RIGHT and INNER JOINs

Challenge: Table Join

Challenge: FULL JOIN Usage

Learn the fundamentals of Data Definition Language (DDL) and Data Manipulation Language (DML) in SQL, including how to create, modify, and delete database objects, as well as how to insert, update, and delete data within tables.

CREATE and Constraints

ALTER and INSERT Operations

DROP and TRUNCATE

UPDATE and DELETE

Why do we need a database? How does the interaction between a database and code work? What tools are used for different types of databases? You will learn all about this in this section!

Boilerplate Code Auto-Generation

Section 1 Summary

This section will tell you how to set up and use Hibernate. You will learn how this framework works, what ORM is, and how to work with databases efficiently. You will also learn to write basic operations with a connected database, demonstrating your skills in practice!

Hibernate. ORM

Hibernate Config and Entities

Challenge: Entity Creation

Transactions and Session

Implementing DAO Pattern for our Program

Challenge: Implementing DAO

`query()` and `nativeQuery()`

Challenge: Query

Entity Relations and Cascade Types

Implementing the `Role` Entity

Challenge: Role Layers Implementation

Section 2 Summary

In this section, we will complete work on the project's foundation for employee management in the company. We will add the remaining operations and one more entity.

`update` operation for Employee and Department

Challenge: Department Layers Improvement

`Task` Entity Implementation

Understanding the Program's Functionality and Summarizing

What's next?

Explore the inner workings of the web. Learn how data travels across networks, discover the role of protocols, and unravel the mysteries of IP addresses and domain names. Gain a high-level understanding of how web browsers and servers communicate to deliver web content.

Welcome to HTML and Web Development

What Is the Internet?

How Does the Internet Work?

Understanding How Websites Work

Frontend and Backend Development Explained

Discover the power of tags to structure content, from headings and paragraphs to lists and tables. Learn how to enhance the elements with attributes.

Understanding HTML Tags

Working with HTML Attributes

Understanding Paired and Single Tags in HTML

Text Markup

Organising Lists

Challenge: Create Your First Web Page Paragraph

Challenge: Build a Personal Introduction Web Page

Challenge: Design a Movie Showcase Web Page

Using Links

Adding Buttons

Challenge: Create Links to Popular Websites

Validating Your HTML Code for Best Practices

The core of HTML document structure. Learn the components of an HTML document, including the doctype declaration, head, and body. Understand the purpose of each element and how they contribute to the overall structure of a webpage.

The Secrets Behind Well-Structured Web Pages

Understanding HTML Document Structure

The Role of the Document Head

Managing Document Flow and Layout

Challenge: Structure an HTML Document Correctly

Using Developer Tools for HTML Inspection and Debugging

Make a web page more appealing with the help of media such as images, audio, and video. Work with structured tabular data in the form of tables.

Adding Images in HTML

Challenge: Work with Images

Working with Clickable Images, Captions, and Optimization

Understanding Vector and Raster Graphics

Embedding Audio for Rich Media

Adding Video Element

Challenge: Embed Audio and Video in HTML

Creating and Structuring Tables in HTML

Challenge: Design a Functional HTML Table

Explore the versatility of HTML forms. Learn to design intuitive and user-friendly forms by leveraging key concepts and techniques. Discover how forms enable user interaction and data submission on websites.

Introduction to HTML Forms

Fundamentals of Form Creation in HTML

Using Labels for Better Form Accessibility

Enhancing Forms with Input Attributes

Exploring Different Input Types in HTML

Challenge: Create Form with Inputs and Labels

Working with the Textarea Element for Multi-line Input

Using the Select Element for Dropdown Menus

Using the Datalist Element for Predefined Input Suggestions

Grouping Form Elements for Better Structure

You’ll learn the basics of backend development, including how the HTTP protocol works and the differences between HTTP and HTTPS. You’ll also study HTTP status codes and data formats like JSON and XML for transferring information between client and server.

Introduction to Backend

How HTTP Works

HTTP/HTTPS

Status Code

Data formats: JSON and XML

In this section, we will dive into the essential concepts of backend development using Spring. We will cover various topics, including an introduction to Spring, the principles of Inversion of Control (IoC) and Dependency Injection (DI), the structure of a Spring Boot project, Spring MVC, three-tier architecture, and task management. Each chapter will build upon the previous one to provide a comprehensive understanding of backend development in a Spring environment.

Introduction to Spring

Project structure

Spring MVC

IoC and DI

Three-Level Architecture

Spring Task

This section covers the fundamentals and practical implementation of RESTful APIs, starting with the theoretical understanding of REST and its core principles. It also includes building your own API, working with DTOs, handling exceptions, integrating Swagger for documentation, and testing the API.

What is REST?

Basic Principles of REST

Writing Your Own REST API

This section covers the basics of working with relational databases, including connection setup, migrations, and interaction with Object-Relational Mappers (ORM) using JPA and Hibernate. It discusses how to integrate databases with Spring Boot applications and explores key aspects of transaction management to ensure data integrity. The goal of this section is to enhance your database skills and promote their effective use in application development.

Introduction to Relational Databases

Connecting a MySQL Database

Database Migrations

Working with ORM: JPA and Hibernate

Add the Database to Our Application

Transactions

This section focuses on testing backend applications and covers essential topics such as the fundamentals of testing, unit testing using JUnit, and integration testing. It also explores the use of mock objects with the Mockito library to create effective and isolated tests. This section will help developers understand the importance of testing and learn how to utilize tools to enhance the quality and reliability of their applications.

Fundamentals of Testing Backend Applications

Modular Testing With JUnit

Mockito

Challenge: Unit Testing

Course Summary

This section provides an introduction to Redis, highlighting its core features and common use cases. You’ll learn how to install Redis on different platforms, including Windows and macOS, and get familiar with the basics of connecting to and starting the Redis server.

What is Redis?

Uses of Redis

Installing Redis on Windows

Installing Redis on MacOS

Connecting to and Starting Redis

Here, we explore the essential Redis commands for managing and manipulating data effectively. You'll learn how to set, retrieve, increment, and delete data using commands like SET, GET, EXISTS, INCR, DECR, and tackle practical tasks to apply these concepts in real-world scenarios.

SET Command

GET Command

EXISTS Command

Challenge: Basic Commands

INCR and DECR Commands

Challenge: INCR and DECR

Data Deletion

Here, you will learn about key Redis data types, including Lists, Sets, Sorted Sets, and Hashes. You will explore their functionality and practical applications through focused exercises designed to reinforce your understanding of each data type.

String

List

Challenge: Task Management System

Set

Challenge: Managing User Interests

Sorted Set

Hash Table

Challenge: Managing User Profiles

You'll explore advanced features of Redis, including managing key lifecycles, executing transactions, and leveraging the Pub/Sub messaging system. Additionally, you'll learn essential security practices to safeguard your Redis environment against unauthorized access.

Managing Key Expiration

This section introduces the fundamentals of caching and demonstrates how to configure Redis as a cache in a Spring application. It covers key caching annotations and practical examples of caching queries in web applications, concluding with a summary of the main concepts.

Introduction to Caching

Integration with Spring Boot

Annotations for Working with Cache

Practical Use of Hashes

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