Java Complete

Programming basics in pseudocode

• Algorithms
• If-else statements
• Logical operators
• Case statements
• For loops
• While loops
• Repeat until loops

Intro to Java

• History of Java
• Why Java?
• How computers execute code
• How computers execute code
• Toolchain: JDK, JRE, java, javac, jar, etc.
• Application structure and elements
• Data types
• Java libraries
• Flow of Control
• Javadoc

Intro to IntelliJ IDEA

• Write, compile and execute a program
• Coding style
• Refactoring
• Debug
• Tests & Coverage
•  Plugins

Functions

• Solving problems with functions
• Function call trace
• Recursion
• Small introductions
• Libraries and clients

Introduction into Object Oriented Programming

• OOP introduction
• Abstraction
• Encapsulation
• Composition
• Inheritance
• Polymorphism
• Dynamic dispatch
•  Modularity (general topic)

Object Oriented Programming in Java
Everything is an object

• Object class
• Creating objects
• Using objects
• This keyword

Initialization and clean-up

• Constructors
• Member initialization
• Clean-up: finalization and GC
• Primitive types
• Boxing / unboxing
• Reusing classes
• Access control
• Super and final keywords
• Interfaces
• Abstract classes
• Runtime polymorphism
• Upcast and downcast
• Static and dynamic binding
• Inner, nested and anonymous classes

Apache Maven

• What it does
• Usage
• Project structure
• Repositories
• Build lifecycles

Version control (GIT)

• What it does
• Usage
• Repositories

• Arrays
• Collection vs collection
• Operations
• Types of collections
• Equals and hashCode
• Best practices

• Why testing?
• Unit testing
• JUnit and Mockito
• Functional testing
• Integration testing
• Pros and cons
• Comparison between them
• TDD (Test Driven Development)

• Generic Types
• Generics and Polymorphis
• Type Erasure
• Generic Methods
• Generics – restrictions

Enums

• Why Enums?
• Enums in other languages
• Enums in Java

Annotations

• What are they?
• Usage
• Built-in annotations
• Custom annotations

• Understanding exceptions
• Syntax
• How try / catch / throw works
• Finally and try-with-resources
• Types of exceptions
• Effectively using exceptions
• Best practices
• Logging
• Stacktraces (how to read them)

• Lambda expressions
• Functional interfaces
• Method references
• Streams
• Stream type
• Stream operations
• Default methods

• Threads
• Process
• Call stack
• Daemon Threads
• Join
• Synchronization
• Share resources
• Tasks

• Relational Databases
• JDBC
• SQL
• PostgreSQL
• Database normalization
• Transactions
• PreparedStatement
• CallableStatement

• Internet and TCP/IP Protocol Suite
• Client-Server Architecture
• Protocols: DNS, HTTP
• Web Browsers
• Developer Tools
• World Wide Web (WWW)
• Uniform Resource Locator (URL)

• Web Server and Client
• HTML & HTTP
• Understanding URL(s)
• Why do we need Servlet & JSP(s)?
• First Web Application with Servlet & JSP
• Web Container
• Web Application Directory Structure
• Deployment Descriptor

• Introduction
• Benefits
• Latest version
• Sync with JDK
• Spring Framework

• What is Spring Boot and why?
• Benefits
• Micro Service
• How does it work?
• Spring Boot Starters
• Auto Configuration
• Spring Boot Application
• Component Scan
• Spring Boot CLI
• Spring Initializr

• What is Spring MVC?
• Spring Web Annotations
• REST meaning & API best practices
• Postman / Insomnia
• Introduction to using Thymeleaf in Spring
• Model, ModelMap and ModelView

• What is Hibernate?
• Why use Hibernate? 
• Core features 
• Architecture overview 
• Common annotations 
• Advantages and disadvantages 
• Best practices

• What is Spring Security?
• Authentication vs Authorization
• Exploits
• Spring Security – setup
• Basic auth implementation
• JWT implementation

• What is Quartz?
• Key features
• Quartz use cases
• Quartz setup

• Virtualization
• Containerization
• Virtualization vs Containerization
• What is Docker?
• Docker – Key concepts
• Docker – Useful commands

• Testing pyramid
• What is Functional Testing?
• Why functional tests matter
• Database for functional tests
• H2 database
• Test containers
• H2 vs Testcontainers for Testing
• Functional testing setup
• Key concepts

• What is Apache Kafka?
• Introduction to Apache Kafka
• Key features
• Core concept – architecture overview
• Kafka Message Flow
• Kafka in a Real-World System
• Kafka setup
• Kafka with plain Java
• Kafka with Spring Boot

• Interview Preparation File
• How to present oneself during an IT interview
• CV formatting tips