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Ultimate Java Part 1: Fundamentals

3h 21m 58s
English
Paid
Updated September 2026

Ultimate Java Part 1: Fundamentals is a 57-lesson 3 hours 21 minutes self-paced course by Mosh Hamedani (Code with Mosh). Java runs on 90% of Fortune 500 company websites, powers most Android apps, and sits at the core of major banks and financial institutions – yet a lot of the material available for learning it is outdated, misleading, or simply…

Course facts

Lessons
57
Duration
3 hours 21 minutes
Level
All levels
Language
English
Updated
2026-09-11
Instructor
Mosh Hamedani (Code with Mosh)
Price
Premium

Java runs on 90% of Fortune 500 company websites, powers most Android apps, and sits at the core of major banks and financial institutions – yet a lot of the material available for learning it is outdated, misleading, or simply incomplete.

Where this course starts

As the first part of a longer series, this is meant to replace a scattered mix of old blog posts, disconnected YouTube videos, and dated books with one clear, accurate starting point for a career in web or mobile development.

Mosh Hamedani focuses on cutting through common myths and bad advice about Java, giving you a foundation built on what the language actually is and how it's actually used in the industry today.

Who teaches Ultimate Java Part 1: Fundamentals? Mosh Hamedani (Code with Mosh)

Mosh Hamedani (Code with Mosh) thumbnail

Mosh Hamedani is the founder of Code with Mosh, one of the highest-volume independent online instructors in software education. He has been publishing courses continuously since the early Udemy era and has taught over a million students across his Udemy catalog and his standalone Code with Mosh platform. His teaching style is patient, rigorously structured, and deliberately beginner-tolerant — the courses are widely cited as some of the most accessible introductions to their respective topics.

The Code with Mosh catalog covers an unusually wide span: web development with HTML / CSS / JavaScript / React / Angular / Node.js, Python and Django, C# and .NET, mobile development with React Native and Flutter, SQL and database fundamentals, and the algorithm / data-structure interview prep tracks. Few independent instructors maintain this much breadth at consistent quality.

The CourseFlix listing under this source carries over 35 Code with Mosh courses spanning that range. Material is paid; Code with Mosh runs on per-course pricing on the original platform. Courses are aimed primarily at developers picking up a new technology from a clean start through to working production proficiency.

What lessons are included in Ultimate Java Part 1: Fundamentals?

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#1: Setting Up the Development Environment
All Course Lessons (57)
#Lesson TitleDurationAccess
1
Setting Up the Development Environment Demo
02:14
2
Anatomy of a Java Program
04:42
3
Your First Java Program
07:19
4
How Java Code Gets Executed
04:39
5
Interesting Facts about Java
01:47
6
Course Structure
02:27
7
Introduction
00:35
8
Variables
03:11
9
Primitive Types
05:20
10
Reference Types
04:48
11
Primitive vs Reference Types
04:25
12
Strings
07:04
13
Escape Sequences
02:40
14
Arrays
05:26
15
Multi-dimensional Arrays
02:37
16
Constants
01:52
17
Arithmetic Expressions
04:04
18
Order of Operations
01:22
19
Casting
06:28
20
The Math Class
04:43
21
Formatting Numbers
05:50
22
Reading Input
05:06
23
Project- Mortgage Calculator
02:11
24
Solution
04:19
25
Summary
00:47
26
Introduction
00:48
27
Comparison Operators
01:46
28
Logical Operators
04:37
29
If Statements
04:26
30
Simplifying If Statements
03:30
31
The Ternary Operator
02:30
32
Switch Statements
03:51
33
Exercise- FizzBuzz
05:58
34
For Loops
03:49
35
While Loops
04:27
36
Do..While Loops
01:18
37
Break and Continue Statements
03:16
38
For-Each Loop
03:08
39
Project- Mortgage Calculator
01:28
40
Solution
05:01
41
Summary
00:56
42
Introduction
00:39
43
Clean Coding
01:12
44
Creating Methods
04:42
45
Refactoring
02:26
46
Extracting Methods
06:17
47
Refactoring Repetitive Patterns
06:16
48
Project- Payment Schedule
02:11
49
Solution
09:12
50
Refactoring the Code
03:23
51
Summary
00:44
52
Introduction
00:32
53
Types of Errors
01:27
54
Common Syntax Errors
03:10
55
Debugging Java Applications
08:09
56
Packaging Java Applications
04:12
57
Course Wrap Up
00:41
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Frequently asked questions

What prerequisites should I have before taking this Java course?
This course is designed for beginners, so no prior experience with Java is required. However, a basic understanding of programming concepts can be beneficial. The course starts with setting up the development environment and covers fundamental topics like variables, data types, and control structures.
What projects will I build during this Java course?
The course includes practical projects such as a Mortgage Calculator and a Payment Schedule. These projects help solidify your understanding of Java programming by applying concepts like arithmetic expressions, loops, and methods to real-world problems.
Who is the target audience for this Java course?
This course is ideal for individuals looking to start a career in web or mobile development. It's also suitable for those who want to gain a solid foundation in Java, which is widely used across various industries including finance and Android app development.
What Java-specific tools or platforms will I learn to use?
The course begins with setting up the development environment for Java programming. It also covers various Java-specific concepts and tools, such as the Math class for mathematical operations, and methods for clean coding and refactoring.
What is not covered in this Java course?
This course does not delve into advanced Java topics such as concurrency, advanced data structures, or Java frameworks like Spring. It focuses on providing a strong foundation in Java fundamentals, preparing students for more advanced studies.
How much time should I expect to commit to this course?
The course consists of 57 lessons, each designed to comprehensively cover Java fundamentals. The total runtime is not specified, but students should allocate additional time for reviewing material, completing exercises, and working on projects.
How will the skills from this Java course benefit my career?
The skills learned from this course form the foundation for careers in web and mobile development. Understanding Java is crucial, as it's extensively used in Android app development and by major financial institutions, making it a valuable skill in the job market.