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be-classes's Introduction

ABB Back-end Classes

Module 1: Basic Java

About Java. Classes, packages, main(). System.out. Variables, scope of visibility, primitive data types, null. Default values, type casting. Ascending vs descending type cast
Control structures: if-else / switch / ternary / unary operation. Logical operations: !, &&, ||. Scanner. Loops, generating pseudo-random values
Arrays. Working with strings
Methods in Java
Objects, Comparing objects, visibility modifiers, static
Enum, classloader, Java Memory model. Testing Java code
OOP basics, abstract classes. Interfaces
Collection API, Lists, generics
Set, Stack, Queue, Map
Comparator / Comparable, anonymous classes, internal classes, nested class, generics. Patterns: Controller-Service-DAO
Working with date and time. Date / time in Java 8+
Java 8+ - lambda, Stream API
Java 8+ - method / constructor reference, Optional, parallel. Exceptions
I/O - working with files

Module 2: Java Web

Maven, HTTP, Server, Servlet API. Jetty server
Servlet API, Freemarker template, Annotations
JDBC, connection, statements. Relational databases. SQL basics
Creating database schema. ER-diagram. Keys, joins, relations
Grouping operations, nested queries
Views, stored procedures, triggers, indices, transactions, transaction isolation levels
Servlet filters, cookies, auth. HTTP session
Module recap, practice

Module 3: Algorythms

Algorythm basics. Algorythm paradigms. Sorting algorithms. Merge sort, quick sort.
Bit operations
Recursion
Linked lists
Stack, Queue. Hash data structures
Binary Search
Trees
Graphs, search in graphs. BFS, DFS
Snake game introduction
Snake challenge

Module 4: Java Frameworks

Spring Framework basics. Inversion of Control and Dependency Injection principles. Spring Beans
Spring Boot, Spring MVC
Spring MVC, REST API, Restful web service
Spring JDBC, H2
ORM basics. Hibernate p1
ORM basics. Hibernate p2
DTO pattern. DTO validation. Jackson. Lombok
Spring Data JPA
Paging and sorting, practice working with repositories
Testing Spring application
Spring Security
JWT token vs cookies. OAuth2.0. Logging
Spring AOP basics. Handling exceptions
Spring websockets
Multithreading introduction
Thread pools, executor services, Future. Locks
Completable future, ThreadLocal, Deadlock and Livelock. Java Memory Model

Module 5: Final Project

Final Project

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