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.

Amazon Web Services
Skills you'll gain: Network Routing, Routing Protocols, Network Troubleshooting, Virtual Networking, Network Performance Management, Network Monitoring, General Networking, Amazon Web Services, Network Planning And Design, Wide Area Networks, Network Architecture, Capacity Management, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Java Programming, Java, Computer Programming, Program Development, Programming Principles, JUnit, Object Oriented Programming (OOP), C and C++, Maintainability, UI Components, Data Structures, User Interface (UI), Object Oriented Design, Database Development, Database Application, Application Development, Network Model, File I/O
Intermediate · Course · 1 - 3 Months

Skills you'll gain: API Testing, Restful API, Application Programming Interface (API), Test Script Development, JSON, Data Validation, Test Automation, Test Case, Development Environment, Verification And Validation
Mixed · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Kubernetes, General Networking, Application Lifecycle Management
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Angular, Cascading Style Sheets (CSS), JavaScript Frameworks, UI Components, Front-End Web Development, Web Applications, Hypertext Markup Language (HTML), Web Development, Development Environment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Access, Object Oriented Design, Relational Databases, Object Oriented Programming (OOP), Database Software, JUnit, Data Integrity, SQL, Database Development, Java, Java Programming, Database Management, Databases
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Java Programming, Data Management, Secure Coding, Theoretical Computer Science, Programming Principles, Other Programming Languages, Performance Tuning, Computer Programming
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: QuickBooks (Accounting Software), Reconciliation, Financial Reporting, Bookkeeping, Inventory Management, Ledgers (Accounting), Accounting, Inventory Management System, Workflow Management, Inventory Control, Accounting Software, Sales Tax, Management Reporting, Accounting Records, Business Reporting, Small Business Accounting, Balancing (Ledger/Billing), Accounts Payable and Receivable, Expense Management, Financial Data
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: React.js, Front-End Web Development, Event-Driven Programming, Javascript, Context Management, Web Applications, UI Components, Cascading Style Sheets (CSS), Scalability
Beginner · Course · 1 - 3 Months

Council on Foreign Relations
Skills you'll gain: Environment, Climate Change Mitigation, International Relations, Sustainable Development, Diplomacy, Social Studies, Environmental Science, World History, Scientific Methods, Physical Science, Advocacy, Human Factors
Beginner · Course · 1 - 3 Months

Skills you'll gain: Restful API, Application Security, Java Programming, Application Frameworks, Model View Controller, Development Environment, Web Applications, Application Programming Interface (API), Apache Maven, Authorization (Computing), Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), OpenAI API, Generative AI Agents, Package and Software Management, Memory Management, Development Environment, LLM Application, Large Language Modeling, Unit Testing, Agentic systems, Software Documentation, Software Installation
Intermediate · Course · 1 - 4 Weeks