Java Basics courses can help you learn object-oriented programming, data types, control structures, and exception handling. You can build skills in writing efficient code, debugging, and using Java libraries to enhance functionality. Many courses introduce tools like Integrated Development Environments (IDEs) such as Eclipse or IntelliJ IDEA, which streamline coding and testing processes, along with version control systems like Git to manage code changes effectively.

Yonsei University
Skills you'll gain: Text Mining, Data Mining, Unstructured Data, Data Preprocessing, Data Processing, Natural Language Processing, Classification Algorithms, Analytics, Java, Unsupervised Learning, Feature Engineering, Machine Learning Methods, Supervised Learning
★ 3.9 (40) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Email Automation, Workflow Management, Agentic Workflows, AI Workflows, No-Code Development, Deepseek, LLM Application, Generative AI Agents, Large Language Modeling, Generative AI, Automation, Application Deployment, AI Integrations, Google Sheets, Context Management, Gmail, Software Installation
★ 4.1 (45) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Java Platform Enterprise Edition (J2EE), Maintainability, Scalability, Extensible Markup Language (XML)
★ 3.4 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Object Oriented Design, Debugging, UI Components, User Interface (UI), Apache Maven, Software Design, Java Programming, Design Thinking, Object Oriented Programming (OOP), Program Development, Application Design, Build Tools, Integrated Development Environments, Software Development Tools, Eclipse (Software), Data Validation, Version Control, Data Import/Export, Java
★ 4.7 (72) · Intermediate · Specialization · 1 - 3 Months

Indian School of Business
Skills you'll gain: Financial Statements, Financial Statement Analysis, Income Statement, Portfolio Management, Financial Accounting, Balance Sheet, General Finance, Investments, Portfolio Risk, Entrepreneurial Finance, Investment Management, Securities Trading, Financial Trading, Cash Flows, Financial Market, Market Dynamics, Market Data, Return On Investment, Risk Analysis, Risk Management
★ 3.4 (14) · Beginner · Course · 1 - 4 Weeks

Harvard Business Review
Skills you'll gain: Budget Management, Financial Statements, Business Planning, Generative AI, Strategic Thinking, Financial Statement Analysis, Critical Thinking, Plan Execution, Financial Acumen, Business Acumen, Prompt Engineering, Financial Management, Budgeting, Strategic Decision-Making, Responsible AI, Organizational Strategy, Strategic Leadership, Data-Driven Decision-Making, Business Modeling, Digital Transformation
★ 4.8 (40) · Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Core Data (Software), iOS Development, Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, Code Review, UI Components, Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Data Structures, Data Persistence, User Interface (UI), User Interface (UI) Design, Programming Principles, Application Development, Transaction Processing, Mobile Development
★ 4.4 (912) · Beginner · Specialization · 3 - 6 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: electromagnetics, Electrical Engineering, Physics, Materials science, Mechanics, Engineering, Differential Equations, Mathematical Modeling
★ 4.8 (232) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Cyber Attacks, Cybersecurity, Identity and Access Management, Authentications, Security Controls, Threat Management, Data Security, Information Privacy, Cyber Risk, Authorization (Computing)
★ 4.6 (40) · Intermediate · Course · 1 - 3 Months
Skills you'll gain: Vue.JS, HTML and CSS, Hypertext Markup Language (HTML), Web Applications, JavaScript Frameworks, Application Development, Front-End Web Development, Web Design and Development, Cascading Style Sheets (CSS), Web Components, Javascript, Data Persistence
★ 4.2 (45) · Beginner · Course · 1 - 4 Weeks

Digital Marketing Institute
Skills you'll gain: Social Media Marketing, Social Media, Social Media Content, Social Media Strategy, Social Media Management, Social Media Analytics, Social Media Campaigns, Content Marketing, Instagram, Digital Media Strategy, Digital Advertising, Facebook, Digital Marketing, Paid media, Content Creation, Content Strategy, Earned Media, Customer Engagement
★ 4.4 (118) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Android Studio, Android Jetpack, Android Development, Mobile Development, Kotlin, Responsive Web Design, User Interface (UI), UI Components, User Interface (UI) Design, Cross Platform Development, Event-Driven Programming, Animations
★ 4.6 (155) · Intermediate · Course · 1 - 3 Months