Profession
Java developer
12 months ago

Learn Java programming from beginner to junior expert with a course from the JavaRush team - the world's top Java expert.

Discount 50%

Group training: Video tutorials with mentors, practical homework, writing projects in Java.

JavaRush Diploma: We will teach Java development, confirm your knowledge with a diploma, and help you prepare for interviews.

Course program: The training consists of 5 modules + writing a group project, the course is designed for a year.

Java programmer is
a sought-after profession
of the present and future

10 000

vacancies for

The demand for Java programmers is high and constantly growing. Now only on "HH" there are more than 10,000 vacancies in Russia.
Good salary prospects. Java developers' salaries are among the highest in the IT world.
As a Java programmer, there are plenty to choose from. This language is used to create server-side applications in financial services, web applications, embedded systems, big data, Android applications, and scientific applications.

Java developer career path

$600-$1000

Java Junior

Start

$1400-$3000

Middle Java Developer

From 1 year

$3000+

Senior Java Developer

From 2 years and more

The course is right for you if you:

New to programming

You are just starting to try your hand at development. Step-by-step training with an experienced mentor, with weekly “little wins” will help you track the progress of your training and become a confident specialist.

Graduate of technical universities

You have a base, but little practical experience. On the course, you will get a lot of practice and write real projects yourself. We will make you a specialist that the IT market needs.

Do you want to resume learning ?

You have already taken a JavaRush online course or mastered Java development somewhere, but did not finish the job. Systematic training with a clear target date will help you stay motivated.

IT specialist, not a developer

You are familiar with the requirements in this area, but there is no knowledge and experience in programming. We will help you develop skills for real work and prepare you for a career breakthrough.

What's Included in the
12 Month Java Developer Course

Regular classes with mentors -
experienced Java developers

2 times a week, one and a half hour online lectures are held, where a new theory is analyzed and personal recommendations are given to students.

Large projects-terms

You gain experience with important technologies and learn how to create "live" projects that you can use or add to your portfolio.

Interactive online simulator

From the first lesson, you write programs yourself: in a browser or a professional development environment.

Help in finding a job

The JavaRush Career Center will perfect your resume, prepare you to search for suitable vacancies and pass the interview.

Chat Support

Java experts will promptly answer any questions on Java theory and problem solving on weekdays.

Diploma of completion of the course-profession

A completed JavaRush course is a “quality mark” according to IT recruiters.

Help curator

Makes your learning comfortable, answers organizational questions, shares additional materials and recordings of video lectures if you missed them.

Detailed training program

Includes 5 modules with lectures, practice and final projects: from beginner to junior developer level.

1. Introductory lesson. Commands and the first Java program

about java advantages, scope
about JavaRush and Java University
program structure, main method
south
a story about the site and WebIDE

2. Working with variables like int and String

saving text to a variable, its output to the console
declaring and initializing String variables
comments in code
elementary mathematical operations with variables of type int
increment, decrement
concatenation
Integer.parseInt(), String.valueOf()

3. Acquaintance with types and input from the keyboard. Introduction to IDEA

storing primitive variables in memory
storing String variables in memory
byte, short, char, long, float, double
System.in, Scanner
Scanner methods
IDEA installation, project download, JDK download (version 11)
installation of the plugin, a story about its functionality

4. Conditional operator

if, if-else, if-else-if
instruction blocks
nested command blocks (nested ifs)
type boolean
comparison operators, incl. double
logical AND, OR, NOT
ternary operator
comparison of primitives and String

5. Optional

Pulling up newcomers
We tell experienced people about IDEA chips, etc.
compiling a class into bytecode from the console, running the program

6. Cycles

problems on the example of the task of doing something many times
while
break, continue
for
do-while
comparison of different cycles, identifying which one is better to use

7. Arrays

creating and populating arrays
array traversal
storing arrays in memory

8. Two-dimensional arrays

two-dimensional arrays
jagged arrays
n-dimensional arrays

9. Функции

объявление и вызов методов
параметры
возвращаемое значение, void
модификаторы доступа
локальные переменные метода
модификаторы методов, метод main

10. Работа со строками и продолжение предыдущей темы

константы
сокрытие переменных (shadowing)
экранирование символов
основные методы класса String

11. Факультатив

литералы
кодировки
вспомогательные классы для работы со строками: StringBuilder, String.format
утилитный класс Arrays

12. Типы данных. Знакомство с ООП

примитивные типы
приведение типов данных
ссылочные типы
объекты
null
знакомство с ООП
наследование

13. Объекты

создание объектов (new)
конструктор, конструктор по умолчанию
конструктор с параметрами
порядок вызова конструкторов при наследовании
доступ к полям объекта (геттер, сеттер)
hashCode, equals

14. Классы и static

статические переменные
сравнение статических и нестатических переменных
статические методы
порядок инициализации при использовании конструкторов и статических блоков
внутренние классы

15. Факультатив

жизненный цикл объекта
загрузка класса

16. Списки и Generics

классы обертки
ArrayList
Array VS ArrayList
типизация ArrayList (дженерики)

17. Коллекции

иерархия коллекций
Set, HashSet
iterator, for-each

18. Коллекции

Map, HashMap
для каких задач лучше использовать какие коллекции
Collections

19. Факультатив

LinkedList
ArrayList VS LinkedList
Queue
SortedMap, TreeMap

20. Singleton, Enum, switch

зачем нужны перечисления
объявления Enum
Enum — лучший синглтон
switch

21. Исключения

нормальное выполнение кода и ошибки в рантайме
try-catch
иерархия исключений
multicatch
throw
checked и unchecked исключения
throws

22. Исключения

finally
создание своих исключений
Throwable
stack trace
try with resources
AutoCloseable

23. Факультатив

Оборачивание исключения
Error

24. Потоки ввода-вывода

InputStream
Reader
BufferedReader
OutputStream
Writer
BufferedWriter

25. Потоки ввода-вывода. Pattern Decorator

ByteArrayInputStream
ByteArrayOutputStream
комбинирование потоков

26. Потоки ввода-вывода. java.nio

io VS nio
FileChannel
Selector
Path
Paths
Files

27. Работа со временем и датой

Date
DateFormat
Calendar
LocalDate, LocalTime, LocalDateTime
Instant
ZonedDateTime
DateTimeFormatter

28. Git. Итоговый проект. (Крипто-анализатор)

1. OOP: encapsulation, polymorphism. Interfaces

encapsulation
polymorphism
cast
this, super
interfaces

2. OOP: Overloading, Overriding, Abstract Classes

abstract class
implementation of abstract ancestor methods
method overload — same names
overriding methods

3. Stream API

anonymous inner class
implementation of abstract ancestor methods
lambda expressions
functional interfaces
method reference
Stream
Stream’s intermediate and terminal methods
map-reduce

4. OOP: composition, aggregation, inheritance

association: composition and aggregation
inheritance

5. Interfaces: comparison with an abstract class, multiple inheritance

behavior declaration
default methods
implementation of multiple interfaces
«rhombus» problem
comparison of abstract classes and interfaces

6. Type casting, instanceof switch-expression

instanceof
type casting (expansion and narrowing)
switch-expression, Enum

7. Features of calling constructors. static block

the process of creating an object
constructor call order
variable initialization order

8. Device Object: equals, hashCode, clone, toString(). immutable objects

class Object
Object class methods
mutable & immutable objects

9. Recursion

recursion

10. Introduction to threads: Thread, Runnable, start, sleep

Thread
runnable
start
sleep
interrupt

11. Introduction to threads: synchronized, volatile, wait, notify.DeadLock

synchronized
volatile
join
wait, notify
deadlock problem

12.Executors

ExecutorService
factory method pattern
adding tasks to the service
callable
get result: Future
stop ExecutorService
FixedThreadPool
CachedThreadPool
ScheduledExecutorService

13. ThreadLocal, Callable, Future

ThreadLocal context
ThreadLocalRandom

14. Inner/Nested classes, examples: Map.Entry

nested classes
inner classes
inner static classes
inner anonymous classes
examples of different types of classes from the JDK

15. JSON/XML/YAML serialization

java serialization
data formats xml, json, yaml
jackson ObjectMapper

16. Reflection API

why you need the Reflection API
getting data: class, method, constructor, field
object creation
changing the internal state of an object
proxy
RMI

17. Annotations in Java

declarative and imperative coding approach
popular annotations: @Deprecated, @Override, @Nullable, …
creating annotations
annotation processing at runtime

18. Optional

working with Swing

19.Sockets

Socket
ServerSocket
live coding: writing a primitive group chat

20. Final project

1. Garbage collection and reference types in Java

JVM memory: stack and heap
CG: Serial, Parallel, CMS, G1, Shenandoah, ZGC
cache
WeakReference, SoftReference, PhantomReference

2. Design patterns

behavioral: chain of responsibility, team, iterator, interpreter, mediator, keeper, observer, state, strategy, visitor, template method
generative: prototype, builder, singleton, abstract factory, factory method
decorator, linker, facade, adjuster, proxy

3. Development methodologies

waterfall
v-model
incremental
RAD model
agile
iterative
spiral

4. The basics of Maven. Installing Maven, dependency management, types of Maven repositories, building a Java project

downloading, prescribing environment variables
creating a maven project
dependencies
plugins
phases (lifecycle)
profiles
artifact build

5. Experience with Guava, Apache Commons Collections

Multimap, BiMap
multiset
immutable collections
Objects: hashCode, equals
Throwables
CollectionUtils
StringUtils

6.JUnit

why testing is needed
types of testing
@Test
@Before, @After
@BeforeClass, @AfterClass
parameterized tests

7. Mockito

moki
mock and spy
when and thenReturn
verify
any, once, times

8. Logging

why do I need logs
logging levels
slf4j
implementations: log4j, JUL, logback, common-loggins
appendices

9. Network device. Network model

network topology
OSI model
DNS

10. Software architecture. Client-server architecture and its components, three-level architecture, architectural patterns

client-server architecture
three-level architecture (client-server-DB)
criteria for a good architecture: efficiency, flexibility, extensibility, scalability, ease of testing, readable and understandable code
modular architecture. decomposition

11. HTTP/HTTPS protocols. Data transfer protocol, HTTP requests and responses, differences between HTTP and HTTPS. Cookies, Session

network data transfer protocols
http methods (GET, POST, PUT, …)
query parameters
request body
headers
response codes
http VS https
http sessions
cookies
http/2

12. HttpClient

AJAX
java http client
synchronous and asynchronous requests
task to get data from net, for example weather

13. Servlets, Java servlet API. Writing a simple web application

what is a servlet
life cycle
Tomcat servlet container
doGet, doPost
redirect VS forward
filters

1. Introduction to databases. Database Setup (MySQL). ddl, dml

why the necessary databases
relevant and irrelevant databases
relational model
COVER theorem
MySQL developer registration
SQL groups (ddl, dml, dcl, tcl)

2. Data types. Creating a table. Instruction to insert, select, update, delete

creating a theme
creating a table
changing the table structure
insert
select
update
delete

3. Data fetcher

select with
list of selected data
additional selection
connection: left, right, internal, transverse
grouping by tag links
index

4. Redirecting the database

conjugated ACID (atomicity, consistency, insulation, durability)
transportation management
data isolation level x

5. Projecting the data base x

primary norm
the second norm
triple norm
keys (foreign key)
deletion: from one to…, from many to…

6. JDBC 1

why do I need
information technology
getting data in the application from the database
familiarization and deletion of data in the application from the database

7. JDBC 2

transportation
isolation level
error correction check

8. ORM. Switch to sleep mode

inconsistencies of the objective and relevant data model
ORM (sleep mode), JPA
architecture goes into sleep mode
conjugation, explanatory work
getting data in the application from the database
updating and deleting data in the application from the database
Sleep Mode VS JDBC

9. Wintering. One…, many…

alienation (working with teams)

10. Object assignment for ORM

one table for each class
one tablet for each class with ancestors
a single pill for all Iraqi clans
one table for each class using joins (join)

11. Final project

hash for passwords

1. IoC, DI. Spring. components. Beans

why Spring has become the de facto industry standard (benefits)
principles of IoC and DI
bin
context (ApplicationContext)
AOP

2. Spring modules general. Spring Web MVC

core (beans, core, context, SpEL)
data access
testing
web
integration
web mvc

3. Designing a REST API

operating with resources, not methods
http methods
http response codes
mistakes
collection request
querying the number of objects in the collection
collection object request
adding data to the collection
editing
removal
d.h. design a 2-rank REST API

4. App controller-service-dao

context hierarchy
servlet config
controller — receiving request
service — business logic
dao — state storage

5. Spring ORM @Transaction

abstraction “transaction”
declarative transactions
transaction propagation
advantages of ORM + Spring
setting hibernate SessionFactory
live coding example

6. Spring Test. AOP (logging)

unit testing
integration testing
основные аннотации
TestContext
live coding example (тестирование API-метода или пары методов)
spring commons logging bridge

7. Spring Security (memory, DB)

ключевые объекты контекста spring security: SecurityContextHolder, Authentication, UserDetails, GrantedAuthority
авторизация и аутентификация
OAuth2
сессии в памяти
сессии в БД

8. Spring Boot. Spring JPA

стартеры
автоконфигурация
встроенные tomcat
аннотации конфигурации
демонстрация spring data jpa (генерация запроса по названию метода в рантайме)

Our teachers and support

MENTOR CURATOR

Benjamin Mitchell

Team lead of the JavaRush programming team. Backend development and database expert.

TEACHER

Samuel Anderson

Java programmer JavaRush, Java mentor. Engaged in the development of technological solutions for online learning.

TEACHER

Ethan Foster

Java developer, implements new features into the product, improves course content.

SUPPORT

Isaac Sullivan

Java developer. Engaged in improving JavaRush learning content.

SUPPORT

Nathan Walker

Java developer, author of tasks and practical projects in the JavaRush course.

Your CV

A resume that you can show to IT recruiters after completing the course

Skills and technologies:

Java core
Multithreading
OOP
SOLID
Патерны (GoF)
Maven
SQL (MySQL)
JDBC
Servlets, JSP

Tomcat
Hibernate
JUnit, Mockito
log4j
проектирование REST API
Spring (MVC, Test, Security, JPA)
Spring Boot

Прочее:

Windows
Linux
IDEA
GitHub
scrum
HTML
CSS

Salary expectations

from $1000

Location

Kyiv

Schedule

Distant work

Cost of education

Price today

84 $/month

Price without discount

168 $/month

* Prices are inclusive of payment for the entire period of study

Discount 50%

Want to know more?

You can leave a request, the manager will contact you and answer any questions you may have.

Frequently Asked Questions

What is the difference between a classic subscription to a JavaRush course and JavaRush University

At JavaRush University:

training is led by mentors
classes are held in small groups
students write large term paper projects, gain experience with advanced Java technologies, which can then be added to the portfolio
there is regular support in the slack chat, where Java experts promptly answer any questions about Java theory and problem solving
employment assistance is provided: the JavaRush career center checks your resume, prepares you for searching for suitable vacancies and passing interviews
At the request of students, additional electives and live sessions are organized to answer questions and more

What are the student level requirements?

JavaRush is designed for both people with zero knowledge in programming, and for specialists who partially know the Java language, but want to improve their skills or repeat the material.

How many hours a week do you need to devote to studying?

We recommend devoting at least 10-12 hours per week to studying at the university. The bigger, the better.

Why is the course 12 months long?

12 months is the optimal period of time to study theory and develop skills for the position of Junior Java Developer. You will go step by step through all the required levels under the guidance of current Java developers.

Do I need to know English to study at Java University?

The training does not require fluency in English, but minimal knowledge is required to write code, find additional information, or learn how to use programs in English in the future.

How do you help with employment?

After completing the course, you will have every chance to get a job as a Junior Java Developer, as you will receive all the necessary knowledge and skills for this position. The JavaRush Career Center will help you write a resume and prepare future professionals for an interview.

Can I pay for the program monthly?

It is possible to pay monthly tuition. The cost will be 7900 rubles / 105 USD / 92 euros / 2950 UAH per month.

What salary can I expect after passing JavaRush University?

The average salary in the labor market for Java Junior is up to $1000, for Middle Java Developer — from $1400, and for Senior Java Developer — from $3000.

Why should I choose your course?

JavaRush has been the world’s leading Java learning expert for 9 years. Java and the training of IT specialists working with this language is our key specialization.

The program of our University is designed taking into account the requirements for novice Java developers in the labor market and the experience of thousands of JavaRush graduates.

Mentors step by step introduce students to the theoretical part of learning Java and interact regularly in chats to resolve questions and misunderstandings.

The course is filled with many variations of the application of Java theory in practice to consolidate the material covered and use it in future projects. These are 1200 tasks with automatic solution checking, mini-projects for passing each module and the final group project that you can add to your portfolio.

Payment for tuition can be made monthly, which is convenient for planning your budget.

Reviews

Victor Sheff

I was asked here at work "how is your Java?". He answered that, they say, I pass exceptions, wrap, throw out, try-with-resources and all that. In response to this, I received the task: "dachshund question - you get an int[] array as input. Return only even numbers from the array and return it as a List"

Andrey Pazyuk

Now we have started learning about Spring. The course is good, though rarely in places it is written terribly lazily and difficult. But in general, I did not regret that I studied on it. After 2 months, the end of the course and job search. I highly recommend it to anyone thinking of doing it. There really is a meaning. There is enough information even to become a middle, not like a junior. The main thing is to be persistent and not give up half way. Beaver everyone!

Maxim

In November 2021, I thought about programming, before that I had no experience, from the word at all. The only thing at school was 5ki in kyubesik-everything.
I set a deadline of a week to decide on the language and the direction of the back or front. Having studied the vacancies, I decided to study Java. And then it began: schools, courses, etc. so much so that advertising then climbed from everywhere, after he began to go to everyone and study the training program.
Since he himself could not choose, "expensive mistake price" == time from 6 to 12 months + a bundle of money. I began to look for acquaintances who are in the "subject".
Thanks to the "eychar" wife, we found a colleague from an IT company, which recommended JavaRush.
From many hours of conversation, I heard something important for me: "The most prepared Juners come to social services."

About study.
Those who are from 0 have to work hard ... I just happen to be “plugged” for a day (and sometimes more) I can’t understand what’s going on, I start asking mentors, the community, videos, additional study materials and then bam, it came / cut through and went further, solve problems and pass lectures until you reach the next "barrier". There are topics that I do not fully perceive and I try to run them in practice.

In short, I believe that the walker will pass the road. I did not notice how 2.5 months have passed - the mood is without options - TO BECOME A PROGRAMMER. All good.

P.S. when you buy books, see what version of Java is in this publication, there is such a "junk", and pay 1.5-2.5k :)

Irina

This course is very different from the usual. I tried the regular one in August, but then a lot of work appeared: I overworked and could not start.

When I signed up for this course, many problems also arose: there was no time for studying. But the fact that there is a certain pace with which the group goes makes me catch up with the material and find the time.

And in general, the material is presented in a different way: all topics are in order, very thoughtfully, there are mentors who not only lecture the material, but always prompt. And the fact that I have the support of classmates who are ready to help, call, explain is worth a lot.

So far I have not come across topics that I cannot master, but I worry that this can happen, and the understanding that I have support, people who are trying to help me not be left alone with the problem, is very inspiring.

Pavel

I'm delighted, great presentation, interesting. Lectures are watched in one breath. The teachers are great, the presentation is fun. For half of the 15th lecture, the mentor explained the intricacies of the internal classes to the student - he told everything wonderfully, right in all the details. Perfectly explains everything, on the fingers. Thanks again! I didn't notice how two hours flew by!

Vitaly

Quite a rich program, a lot of material. Especially for me, who was not previously familiar with programming, the lectures are very helpful in advancing.

artinsky

Now it is assumed (as I understand it) that training will take place from the first module to the last.
Perhaps, in the future, consider the option of switching from an independent form of study with you to the current course? (with offset of the passed material according to the test results).
Thank you.

Alexey Kurenkov

Tell me... with the tasks I plan to finish Java Multitrading + Java Collection on my own - all quests where there are tasks... So far, from the fully completed syntax and core...
Is it possible to go on a course at Java University not from the beginning, not for a year, but for how long it takes without re-passing the first two courses or 4x?
In general, you need to dive into Spring-Boot, but I understand that not everything can work out without the previous base ... I tried to read without tasks - somehow it’s hard to get into the terms and purposes of the bean, how to use them, how to configure.

whipRip

I wanted to clarify whether it is possible to enroll in a course not from the first lecture, but for example from 12 and how to do this if I have already bought a year of the usual premium?

Nadezhda

When is the next intake for Java University?

Profession Java developer 12 months ago

Java programmer is a sought-after profession of the present and future