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Intermediate

The Complete Java Crash Course

Gain insights into Java, a versatile and portable programming language. Delve into similarities with C++ and Python and learn essential Java-specific features with practical coding examples.

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Overview

Content

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Looking to jump into a new programming language? Java is an easy-to-use, highly portable and ubiquitous language that is used for a variety of development purposes such as Android applications, desktop applications, and website backend systems. Designed for programmers who are already familiar with coding in languages such as C++, Python, or other similar languages, this course articulates any Java-specific details that programmers need to know to get acquainted with the language and also highlights similarities and differences between Java and other languages through multiple coding examples.

Looking to jump into a new programming language? Java is an easy-to-use, highly portable and ubiquitous language that is used fo...Show More

Content

24 Lessons

Hello, Java!

3 Lessons

Step through creating a basic Java program, static methods, and screen printing.

Smile: a first Java program

Writing your own Static Methods

Printing to the screen

Variables and expressions

6 Lessons

Look at Java variables, data types, arithmetic operations, method parameters, strings, and arrays.

Variables; integer values with `int`

Fractional values of numbers with `double`

Arithmetic expressions and operators

Method parameters and return values

Text values with String and char

Arrays

Flow of control: loops and conditionals

5 Lessons

Work your way through loops, conditionals, and operators to control Java program flow.

Conditional and logical operators

Classes, objects, and methods

3 Lessons

Enhance your skills in creating Java classes, methods, and managing access specifiers.

Classes define objects

Classes contain methods

Access specifiers: public and private data and methods

Challenge project: tetrominos

7 Lessons

Solve problems in developing a Tetrominos game, integrating Java graphics and user inputs.

Tetrominos: the game

Getting started with the JDK and an IDE

Step 1: Getting the starter code

Step 2: The Board class

Step 3: The Block class

Finishing Tetrominos

Bonus: Tetrominos User Interface with Swing

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Devin Balkcom

Developed by MAANG Engineers

Every Educative resource is designed by our team of ex-MAANG software engineers and PhD computer science educators — subject matter experts who’ve shipped production code at scale and taught the theory behind it. The goal is to get you hands-on with the skills you need to stay ahead in today's constantly evolving tech landscape. No videos, no fluff — just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 2.7 million developers working at companies

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Evan Dunbar

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"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Software Developer

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Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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