Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Skills you'll gain: Authentications, Cryptography, Encryption, .NET Framework, Open Web Application Security Project (OWASP), Application Security, Vulnerability Scanning, C# (Programming Language), Data Security, Data Validation, Cross Platform Development, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Lean Methodologies, Data-Driven Decision-Making, Kaizen Methodology, Process Improvement, Workflow Management, Operational Efficiency, Scaled Agile Framework, Process Mapping, Business Process, Agile Methodology, Sprint Retrospectives, Business Transformation, Business Process Modeling, Value Engineering, Agile Product Development, Continuous Improvement Process, Agile Project Management
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Apache Cassandra, Big Data, NoSQL, Apache Hadoop, Virtual Environment, Virtual Machines, Apache, Analytics, Data Storage, Distributed Computing, Databases, Database Architecture and Administration, Data Architecture, Scalability
Beginner · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Color Theory, Cascading Style Sheets (CSS), Typography, HTML and CSS, Web Design, Web Content Accessibility Guidelines, Semantic Web
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Server Side, Web Development, Web Scraping, Web Applications, Back-End Web Development, Integration Testing, Python Programming, Web Services, Extensible Markup Language (XML), Package and Software Management, Development Testing, Unit Testing, Performance Tuning, Cross Platform Development, Hypertext Markup Language (HTML), Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Apache Hadoop, Big Data, Cloud Management, File Systems, Data Processing, Data Storage, Java, Operating System Administration, Systems Administration, Distributed Computing, Command-Line Interface, Linux Commands
Mixed · Course · 1 - 3 Months

Universitat Politècnica de València
Skills you'll gain: Building Information Modeling, Sustainable Development, Sustainable Technologies, Sustainable Architecture, Energy and Utilities, Sustainable Business, Sustainable Design, Building Design, Community Development, Environmental Engineering, Climate Change Adaptation, Materials science, Climate Change Mitigation, Case Studies
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Data Presentation, Storytelling, Interactive Data Visualization, Data Visualization, Infographics, Dashboard, Data Visualization Software, Presentations, Data-Driven Decision-Making, Persuasive Communication
Intermediate · Course · 1 - 4 Weeks

Alberta Machine Intelligence Institute
Skills you'll gain: Generative AI, AI Enablement, AI Product Strategy, Case Studies, Artificial Intelligence, LLM Application, Responsible AI, Data Ethics, Trend Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computational Thinking, Algorithms, Program Development, Software Development, Software Engineering, Programming Principles, Data Structures, Computer Programming, Javascript, Computer Science, Web Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Social Media Content, Content Performance Analysis, Brand Awareness, Social Media Strategy, Brand Management, Performance Analysis, Instagram
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, R Programming, Data Manipulation, Statistical Programming, Data Analysis, File Management, Integrated Development Environments, Programming Principles, Data Science, Data Structures, Computer Programming
Beginner · Guided Project · Less Than 2 Hours