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.

Sage Publications
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Succession Planning, Performance Appraisal, Responsible AI, Culture Transformation, Human Resource Strategy, Intercultural Competence, Applicant Tracking Systems, Performance Review, Employee Engagement, Strategic Leadership, Conflict Management, Business Transformation, Employee Retention, Compensation Management, Performance Management, Generative AI, Employee Onboarding, Recruitment, Change Management, Data-Driven Decision-Making
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: ASP.NET, .NET Framework, Web Applications, Application Deployment, Restful API, Model View Controller, Secure Coding, Content Management, Content Management Systems, Authentications, Test Automation, C# (Programming Language), Web Development, Performance Tuning, Docker (Software), Authorization (Computing), Web Development Tools, Kubernetes, API Testing, API Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Ubuntu, Command-Line Interface, Package and Software Management, Hardening, Unix Shell, Linux Administration, Linux, Software Installation, Network Security, System Configuration, Linux Commands, Patch Management, Open Source Technology, Operating System Administration, Cloud-Native Computing, Containerization, Systems Administration, System Support, DevOps, Administration
Intermediate · Course · 3 - 6 Months

University of Alberta
Skills you'll gain: Service Oriented Architecture, API Design, Web Services, Simple Object Access Protocol (SOAP), Microservices, Restful API, Software Architecture, Application Programming Interface (API), Web Applications, Software Design, JSON, Android Development
Intermediate · Course · 1 - 4 Weeks
Madecraft
Skills you'll gain: Instructional and Curriculum Design, Instructional Design, Style Guides, Curriculum Development, Typography, Visual Design, Training Programs, Training and Development, Culture Transformation, Color Theory, Project Design, Developing Training Materials, Adult Learning Principles, Graphic and Visual Design, Program Evaluation, Education Software and Technology, Employee Training, Safety Culture, Organizational Development, Learning Styles
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: System Programming, Memory Management, Linux Administration, Linux, Performance Tuning, OS Process Management, Operating Systems, Embedded Software, Real-Time Operating Systems, Linux Servers, System Software, Linux Commands, System Configuration, Operating System Administration, Debugging, C (Programming Language), Embedded Systems, Cross Platform Development, Open Source Technology, Hardware Architecture
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Javascript, Responsive Web Design, Web Development Tools, Web Development, Cascading Style Sheets (CSS), Bootstrap (Front-End Framework), Scripting, Semantic Web, Debugging, Software Development Tools, Development Environment, Event-Driven Programming, Browser Compatibility
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MLOps (Machine Learning Operations), Model Training, Model Optimization, Applied Machine Learning, Model Evaluation, Convolutional Neural Networks, Machine Learning Methods, Image Analysis, Scikit Learn (Machine Learning Library), Computer Vision, Machine Learning, Sampling (Statistics), Continuous Monitoring, Data Collection, Python Programming, Big Data, Data Quality
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Automation, Customer Analysis, Email Marketing, Data-Driven Marketing, Customer Insights, Cross-Channel Marketing, Promotional Strategies, Marketing Effectiveness, Campaign Management, Promotions and Campaigns, Email Automation, Marketing Strategies, Personalized Campaigns, Product Lifecycle Management, Performance Measurement, Customer Retention, A/B Testing, E-Commerce, Sales, B2B Sales
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Design Thinking, User Experience Design, User Experience, User Centered Design, User Interface and User Experience (UI/UX) Design, Human Centered Design, Wireframing, User Interface (UI), User Interface (UI) Design, Prototyping
Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Data Lakes, Data Warehousing, Data Architecture, Star Schema, Microsoft Azure, Extract, Transform, Load, Transaction Processing, Transact-SQL, Data Pipelines, Information Management, Power BI, Operational Databases, Data Storage Technologies, Data Processing, Data Storage, Data Maintenance, Performance Tuning, Data Access, Dependency Analysis, Data Analysis
Advanced · Course · 1 - 3 Months