Java from Zero to First Job: Part 1
4.3 (198 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
24,986 students enrolled

Java from Zero to First Job: Part 1

Java from scratch: Java basics, OOP, Interview questions
4.3 (198 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
24,986 students enrolled
Created by Andrii Piatakha
Last updated 7/2020
Current price: $13.99 Original price: $19.99 Discount: 30% off
5 hours left at this price!
30-Day Money-Back Guarantee
This course includes
  • 4.5 hours on-demand video
  • 2 Practice Tests
  • 23 coding exercises
  • Full lifetime access
  • Access on mobile and TV
  • Assignments
  • Certificate of Completion
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What you'll learn
  • Java :)
  • Students will learn programming basics which will help them to understand any other programming language
  • Interview practice tests
  • In this course you will get knowledge which is needed to proceed with understanding of Android, Spring Framework and other enterprise frameworks
  • Object-oriented programming
  • Learn the Java basics, including syntax and primitive data types
  • Get necessary knowledge to demonstrate your skills of Java to future employers
  • Understand difference between Java 8, 9, 11, 13
  • Learn best practices from true programmer
  • Learn how to write scalable, readable and maintainable clean code
  • 25+ coding exercises
  • You will learn source code of the tutor. All homework is completed with the Trainer
  • Learn how to use integrated development environments to create Java programs
  • Debugging tools
  • Eclipse IDE
Course content
Expand all 51 lectures 04:40:45
+ Introduction
4 lectures 23:26

This video course has manually created captions, but not auto-generated.

In the lessons you are going to hear domain-specific terminology. In case something will be unclear, or you would like to know just how to spell new word - you can always turn on captions.

In this short lesson we will review how you can use captions during the training course.

Preview 01:19

From this lecture you will learn:

• Java History

• Why Java

• What you can implement with Java

• This training course structure

• Opportunities after this course

• What is JVM

• What is JRE

• What is JDK

Preview 14:42

From this lecture you will learn:
• How to communicate during this course

• Where to ask questions

• How to ask questions

• Communication channels

Preview 04:11

From this lecture you will learn:

• Where to find good tests to verify your knowledge

• How to get unlimited access to Learn IT application (only for my students from Udemy)

Preview 03:14
+ Basics
5 lectures 42:17

From this lecture you will learn:

• How to chose JDK version

• Difference between openjdk and oraclejdk

• How to install jdk on computer

• How to configure environment variables

Preview 07:55

From this lecture you will learn:

• What are console applications

• How to compile .java files to bytecode

• Basic Syntax

• How to create ‘Hello World’ app on Java

• What are compilation errors

• How to execute our programs on JVM

• Configuring environment variables

Preview 12:49
We need to learn basics to work with command line and to learn basic commands.
Hello World: .bat or .sh
1 question

In the lesson we will solve homework together with and we will write batch script from scratch to compile your source code and run Hello World application.

Preview 02:06

From this lecture you will learn:

• What is IDE

• What are the most popular IDE for Java development

• Eclipse for Java EE developers: Overview

• Eclipse Java Project

• What is a package

Preview 12:25

From this lecture you will learn:

• What are comments

• What are types of comments in Java source code

• Java Doc

• Tips and best practices

Preview 07:02
+ Primitive Data Types, Variables and Arrays
3 lectures 35:25

From this lecture you will learn:

• What data types exists in Java

• What are primitive types

• Integers

• Floating-point numbers

• Characters

• Boolean

• Primitive types conversion

• What are variables

• 'var' variables

• Java keywords

Preview 15:20

From this lecture you will learn:

• Number Systems

• Binary number system

• Octal number system

• Hexadecimal number system

• How to convert from one system to another

• Binary, octal and hexadecimal literals in Java

Preview 06:37

From this lecture you will learn:

• Arrays: overview

• One-dimensional arrays

• How to access elements in arrays

• Default values for elements in array

• ArrayIndexOutOfBoundsException

• Array literal

• Multidimensional arrays

•‘ null’ values

• java.util.Arrays

• import statement

• How to investigate JDK source code

Preview 13:28
+ Eclipse: Tips and Tricks
3 lectures 10:57

From this lecture you will learn:

- how to create packages in eclipse

- how to configure package presentation in eclipse

- what is flat and hierarchical package presentation

- how to create nested packages

- how to create package during class creation

Packages: creation and package presentation in eclipse

From this lecture you will learn:

- What are eclipse plugins?

- How to install free plugins?

- Eclipse marketplace

- How to change style of the workspace

Plugins: how to install free plugins, eclipse marketplace, workspace styles
Code Refactoring in Eclipse
+ Operators and Operations with primitive types
7 lectures 54:58

From this lecture you will learn:

• What are operators?

• Type of operators

• Arithmetic operators

• Assignment operators

• Relational operators

• Logical operators

• Bitwise operators

• Ternary operator

• Operator precedence

Preview 20:02

From this lecture you will learn:

• Dividing of integers specifics

• Subtraction of floating-point numbers specifics

• BigDecimal type

• How to control precision of arithmetic operations

Operations with integers and floating-point numbers, BicDecimal type

From this lecture you will learn:

• java.lang.Math class overview

• How to perform basic mathematical operations

• Rounding

• Random number generation

•  NaN - what is not a number?

•  Infinity - what is 'infinity'?

•  How to find max and min value?

•  How to find square root?

Math class, NaN, Infinity

From this lecture you will learn:

• What is expression

• What is statement

• Type of the expression in Java

• Concatenation with String

Type of the expression in Java

From this lecture you will learn:

• How to compare primitives

• How to compare reference types

• Java Memory Model: Heap and Stack in Java

• Integer pool

• equals() method

• How to compare arrays

Compare primitive and reference types & Java Memory Model

From this lecture you will learn:

• How you can read input from the console

• What is

Read user input from console
Simple console integer calculator
1 question
Calculate Area of Triangle
1 question
Calculate Circle Circumference
1 question

From this lecture you will learn:

• How to run programs with arguments

• Project Explorer VS Navigator view in Eclipse

• How to run JVM with arguments

• How to set up maximum heap size for JVM

• Solutions for coding exercises

Homework review: Operators and Operations
+ Strings in Java
6 lectures 22:52

From this lecture you will learn:

• java.lang.String class overview

• Main String methods

• How to create String objects

String: object creation and main methods overview

From this lecture you will learn:

• String pool

• String comparison

String comparison: How to compare Strings and what is String Pool?

From this lecture you will learn:

• What are escape sequences?

• What  escape sequences are available in Java?

• Unicode characters escaping

Escape Sequences in Java

From this lecture you will learn:

• How to format string

• What are format specifiers?

• How to use Formatter?

• When need to format strings?

String Formatting

From this lecture you will learn:

• What are regular expressions?

• When to use regular expressions?

• Why we need regular expressions?

• How to write regular expressions in Java?

• Pattern and Matcher objects in Java

• How to find words in String

Regular expressions in Java
Format floating-point number
1 question
Split Words
1 question

In this lesson you will see one of the way to solve home tasks. Best practices will be shared. POSIX groups will be discussed.

Homework review: String
+ Control Statements
4 lectures 10:11

From this lecture you will learn:

• How to use 'if' statement

• Syntax of 'if' statement

• Nested 'if' statements

• 'if-else-if' ladder

'if - else' construction
Admin and Guest mode for application
1 question
Simple Number Calculator
1 question

In this lesson you will find solution for coding exercises from 'if' statement topic

Homework review: 'if' statement

From this lecture you will learn:

• How to use 'switch' statement

• Syntax of 'switch' statement

• Type of expression to be used in 'switch'

• 'break' statement

• 'default' statement

• 'switch' vs 'if statement

'switch' construction
User Activity Selector
1 question

In this lesson you will find solution for 'swtich' statement homework.

Homework review: 'switch' statement
+ Miscellaneous
1 lecture 01:54

From this lecture you will learn:

• How to generate random numbers?

• What is java.util.Random type?

• API of java.util.Random

• How to generate random numbers in specific range of values

Random numbers generation
+ Iteration Statements (Loops) in Java
8 lectures 15:11

From this lecture you will learn:

• What are iteration statments in Java?

• When we need to use iteration statements in Java

• Examples of loops in Java

• 'while' loop

'while' loop

From this lecture you will learn:

• How to use 'do-while' loop

• Usage of ´do-while´ loop - examples

• When to use 'do-while' over 'while' loop

'do-while' loop

From this lecture you will learn:

• How to use 'for' with condition loop

• Examples of the use

• Comma in for loop

'for' with condition loop

From this lecture you will learn:

• How to use 'for each' loop

• Examples of the use

• Shortcut in eclipse to create 'for each' loop

'for each' loop

From this lecture you will learn:

• How you can put one loop inside another one

• When you need to use nested loops

Nested loops

From this lecture you will learn:

• What are jump statements

• Continues statement

• Break statement

Jump Statements - Break and Continue

From this lecture you will learn:

• What is goto statement in programming?

• Labels in Java

• How to use labels in Java

Labels in Java
Print digits from new line
1 question
Pyramid in console
1 question
Print matrix to console
1 question

In this lesson we will review solution for coding exercises.

Homework review: Iteration Statements (Loops)
+ Methods
5 lectures 17:00

From this lecture you will learn:

• What are methods

• How to declare a method

• What is method signature

• What is method overloading

• How to call method

Methods in Java: Overview

From this lecture you will learn:

• Passing data by value

• Passing data by reference

• Passing primitive types to method in Java

• Passing reference types to method in Java

Parameter Passing Mechanism in Java

From this lecture you will learn:

• What is recursion

• What are recursive methods

• How to write recursive methods

• When do we need recursive methods

• Pros and cons of recursive methods

Recursive methods

From this lecture you will learn:

• What are variable-length arguments

• Syntax of varargs

• Varargs in the methods

Variable Length Arguments
Find max int in array
1 question
Draw empty rectangle
1 question
Calculate Amount of Words
1 question
Filter String array
1 question
Rotate Matrix
1 question
Extend Array
1 question
Greatest Common Divisor
1 question
Sum all digits in number
1 question
String Processor
1 question
Turn each first letter in the word to capital
1 question
Convert decimal to Roman numbers and vice versa
1 question

In this video we will review coding exercises from this section

Homework review: Methods
  • You want to learn Java while having fun :)

This is the first part of fundamental training program 'Java from Zero to First Job'.  As it's declared in the course name, it's created for people who want to learn programming from scratch. You need to know how to turn on your computer, no other knowledge is required for this course :) The rest will be covered in lessons.

Before starting creation of this course, our team attentively investigated feedbacks for existing courses on Udemy platform and tried to focus on the feedbacks for the top-rated courses to understand what can be improved in this course and make it even more better from the quality standpoint. After analysis, we understand what will help students to learn Java in more efficient way. In this course:

- High concentration of useful material in each lesson

Sometimes you can notice that watching of 5 minutes of our lesson is equivalent to watching of other 30 minutes lesson.

This is because time spent for preparation for the lesson (script for the lesson, lesson structure) and video editing (to cut boring pieces of the lesson, or time when program loads) sometimes 10 times as much (sometimes even 20) as final lesson duration after video editing.

So you can be sure, that this ~5 hours training course of Java basics is equivalent or even better of training courses of java basics that are 25 hours long.

Also each topic is separated from another. In case some concept will be explained in the next lesson and you don't need to worry about understanding this in scope of this lesson - instructor will make announcement when specific topic will be covered.

Go and try it yourself! We will appreciate your feedback.

- Relevant knowledge

After our team investigated other Java courses on Udemy we realized that most of them has nothing in common with real life. Information which is shared there is very old and significantly out of date. For example, instructor teaches framework which is not used already for 15 years. Or instructor do a stress on the programming design which is not used anymore at all!

Instructor of this course is consultant in the top-rated IT outsourcing company and helps to bring cutting-edge solutions in IT for all his clients. Feel free to check LinkedIn page of instructor and check skills endorsement. More than 18 thousand people acrooss all over the world (BTW most of them are from top 100 companies of the world) evaluated skills of Andrii Piatakha.

With this course you can be sure that you will spend your time learning the right things from the one of the best IT consultants in the world.

- Sequence of lessons

After the years of teaching offline, and based on the feedbacks of students who are passing online courses we realized how important the sequence of lessons while teaching Java. The same issue is with the books where information is completely unstructured what makes things even more complex. For example, how students can learn object oriented programming from the first lesson if they don't know yet the java syntax basics? Or how student can implement hometask if he/she doesn't aware of java methods specifics, or doesn't know yet how to read program input?

So in this course you can be sure, that you will not get hometask to implement without having enough information to implement it. The program which is in this course is proven by many students who completed it offline and now work as software engineers in outsourcing companies and as a freelancers.

- Interview practice tests

Being an IT consultant in different companies, tutor of this course was in charge ot driving interview process in companies to make sure, that company selects the best people. That's why the first interview is always test. In case test is completed, candidate is invited to have a conversation. That's why, in this course we want to prepare you to complete tests sucessfully!

Specially for our students, we prepared tests which could be used to evaluate your knowledge during the interview process.

2 tests. 90 questions each (180 interview tests in total). 120 minutes each.

You can read explanation to answers! That also can help you to learn material better. Don't wait, try it now!

- Q&A support

The significant difference between online and offline learning process is instructor's availability. If you are in the one room with tutor he always can help you to get understanding specific concept or to help fix your code on your computer.
In this course, we are supporting students with answers to any questions flagged in Q&A section. In case there will be recurring questions - separate video lessons will be created to show how to address issue.

So with this course you are not just getting video materials, code exercises, source code, access to free mobile application without limits (which is still pretty cool, huh? :) ) , but you also get tutor support and answers to your questions along with this course.

- Open source code

We hide nothing from our students! Including the source code for the hometask solutions and source code of examples which were shared during the lesson. Having the source code you can just copy and paste it to run it on your local computer to understand how things work better.

- Free mobile App without limits for our students

Knowing Java is one skill. Be able to pass interview in company - that is another skill :) Nowadays a lot of companies use tests to select candidates on the first level of interview. We developed application to practice skills specifically for such purposes.

In this course we will provide you link to download our FREE mobile app for android. (soon it will be also available for iOS platforms)

Instructor of this course come up with hundreds tests which are used to test knowledge of candidates. With this application you will be well-prepared for the interview.

Also, only for our students - there is no limit on attempts to pass certification. In the course we will tell you how to set up special bonus code which will remove restrictions for our students inside the app.

- Coding exercises

To learn programming it is not enough just watching videos and reading books. You also need to have a lot of practice. In this training course you will have different practical tasks which will help you learn and understand Java better.

- Captions

Almost all training courses on Udemy has auto-generated captions. And you know how auto-generated captions looks like - words are written incorrectly, timeline is not perfect. We saw feedbacks of international students who would like to have captions properly written. And also taking into account you are learning new domain it is nice to understand how new words spelled to be able to google them if needed.

For this course tutor create Java program (you would be able to do the same after you complete the course :) ) which helps to create perfect captions that can help you a lot in your education. We are not using auto-generated captions. We use scripts written by tutor and which is mapped against the video.

As you can see from curriculum, in this part of fundamental training program you will learn how to install JDK on your computer, you will learn a lot about IDE where you can write you programs, you will learn Java syntax, primitive types of data, loops, control statements, arrays, operations with primitive and reference types of data, String, Enum, how to write methods in Java, different number systems, tips and tricks, practical coding exercises, debugging tools and lots more.

So don't wait! Take a look at lessons' preview if you still have doubts!

Buy this course today, and you will get all updates for FREE!

Right now our team keep working on the next lessons for this course. We are preparing for you a lot of other topics and coding exercises! Our goal - to create web application together with you. Buy this course today, and you will receive all updates for free! Isn't that cool? :)

For those who successfully passed this training course, or for students who was recognized for asking amazing questions, there is a special offer from IT-Bulls company! The creator of this course is IT-Bulls company CEO and Founder. We always in search of talents to run our amazing startups together with you. Probably you always dreamed about running your own startup? In this course you will be able to find the team who will teach you how to do that and (in particular cases) will be glad to help with implementation!

Hope you enjoy this course! And remember, we appreciate all your feedbacks! Your feedbacks will help us to become even more better! Your feedbacks will help us to create to best Java course ever!

See you on the lessons! :)

Who this course is for:
  • Everyone who wants to learn java from scratch
  • People who wants to learn programming basics
  • Future software engineers of web applications
  • Future android developers
  • Future test automation engineers