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.

KodeKloud
Skills you'll gain: Data Structures, Debugging, Python Programming, Computational Logic, Programming Principles, Data Storage, Code Reusability, Program Development, Computer Programming, Computer Architecture
★ 4.6 (29) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Node.JS, Full-Stack Web Development, HTML and CSS, JavaScript Frameworks, User Interface (UI), Application Deployment, Application Frameworks, Back-End Web Development, Frontend Integration, Front-End Web Development, Hypertext Markup Language (HTML), User Interface (UI) Design, MongoDB, Secure Coding, Middleware, Bootstrap (Front-End Framework), jQuery, Javascript, Cascading Style Sheets (CSS)
★ 4.2 (65) · Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Data Structures, Cryptographic Protocols, Algorithms, Encryption, Theoretical Computer Science, Computer Science, Mathematical Software, Advanced Mathematics
★ 4.6 (62) · Advanced · Course · 1 - 4 Weeks

Splunk Inc.
Skills you'll gain: Splunk, Interactive Data Visualization, Data Visualization Software, Dashboard Creation, Dashboard, Ad Hoc Reporting, Business Intelligence, Data Analysis, Email Automation, Data Processing, Big Data, Data Science, Query Languages, Incident Response, Business Analysis, Geospatial Mapping
★ 4.6 (226) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Merchandising, Inventory Management, Inventory Control, Merchandise Displays, Retail Management, Consumer Behaviour, Visual Merchandising, Retail Store Operations, Retail Sales, Marketing Psychology, Customer Analysis, Customer Engagement, Analysis, Design
★ 4.6 (71) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Load Balancing, ASP.NET, Test Driven Development (TDD), Debugging, C# (Programming Language), Software Testing, Scalability, Performance Testing, Restful API, Unit Testing, Web Development, Microservices, .NET Framework, Object-Relational Mapping, Software Architecture, Web Applications, Test Engineering, Object Oriented Design, Cloud Deployment, Distributed Computing
★ 4.7 (243) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Molecular Biology, Life Sciences, Biology, Molecular, Cellular, and Microbiology, Cell Biology, Biotechnology, Oncology, Environmental Issue, Biochemistry, Environment, Healthcare Ethics, Emerging Technologies, Ethical Standards And Conduct
★ 4.7 (122) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Email Security, Microsoft Outlook, Calendar Management, Gmail, Meeting Facilitation, Organizational Skills, Microsoft Office, Google Workspace, Scheduling, Encryption, Productivity Software
★ 4.7 (82) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Infrastructure As A Service (IaaS), Microsoft Azure, IT Automation, DevOps
★ 4.3 (195) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Bootstrap (Front-End Framework), Web Design and Development, Web Development, Web Applications, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Browser Compatibility, User Experience Design, Requirements Analysis, Requirements Elicitation, Client Services, Javascript
★ 4.7 (50) · Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Prompt Engineering, Prompt Patterns, Responsible AI, AI Integrations, OpenAI API, OpenAI, Generative AI, API Testing, Data Ethics, AI Security, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Application Programming Interface (API), Fine-tuning, Computer Programming, Key Management
★ 4.5 (135) · Intermediate · Course · 1 - 3 Months
University of California, Irvine
Skills you'll gain: Physiology, Immunology, Infectious Diseases, Life Sciences, Cell Biology, Respiration, Pathology, Hematology, Diagnostic Tests, Neurology, Cardiology, Molecular, Cellular, and Microbiology, Microbiology, Pharmacology, Biochemistry, Molecular Biology, Oncology
★ 4.8 (106) · Intermediate · Course · 1 - 4 Weeks