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: Embedded Systems, Embedded Software, Robotics, Electronic Systems, PIC Microcontrollers, Computer Systems, Internet Of Things, Automation, Control Systems, C (Programming Language), Peripheral Devices, Wireless Networks, Medical Devices, Electric Power Systems, Computer Architecture, Civil Engineering, Cybersecurity, Public Works, Cloud Computing, Electronic Hardware
Intermediate · Specialization · 3 - 6 Months

Simplilearn
Skills you'll gain: Email Marketing, Target Audience, Lead Generation, Marketing Automation, Newsletters, Campaign Management, Driving engagement, Direct Marketing, Promotional Strategies, Digital Marketing, Content Marketing, Customer Relationship Management (CRM) Software, Customer Engagement, Sales, Automation, Law, Regulation, and Compliance
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Serverless Computing, Secure Coding, Risk Management Framework, Threat Modeling, Cloud Security, Infrastructure Security, Cloud Services, Web Applications, Cloud Platforms, Javascript, Node.JS, Amazon Web Services
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: 3D Modeling, 3D Assets, Computer Graphics, Visualization (Computer Graphics), Graphical Tools, File Management, UI Components, Design Software, User Interface (UI), Software Installation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: TypeScript, Scripting, Scripting Languages, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Jenkins, Artifactory, Apache Maven, CI/CD, DevOps, Build Tools, Software Configuration Management, Java, GitHub, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Lean Six Sigma, Lean Methodologies, Six Sigma Methodology, Quality Improvement, Process Improvement, Process Analysis, Operational Efficiency, Continuous Improvement Process, Root Cause Analysis, Waste Minimization, Pareto Chart, Standard Operating Procedure
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Software Design Patterns, Unified Modeling Language, Java Programming, Software Architecture, Application Design, User Interface and User Experience (UI/UX) Design, Software Engineering, API Design, Software Development
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: C++ (Programming Language), System Programming, Algorithms, Performance Tuning
Advanced · Course · 1 - 3 Months

University of Glasgow
Skills you'll gain: Federated Learning, Wireless Networks, Emerging Technologies, Digital Communications, Communication Systems, Blockchain, Internet Of Things, Network Security, Telecommunications, Network Performance Management, Network Planning And Design, Zero Trust Network Access, Computer Vision, Artificial Intelligence and Machine Learning (AI/ML), Electrical Engineering, Network Analysis, Information Technology, Electronics Engineering, Machine Learning, Trustworthiness
Intermediate · Specialization · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Amazon Redshift, Amazon Web Services, Amazon S3, Data Warehousing, Data Store
Mixed · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Object Oriented Design, Unified Modeling Language, Software Development Methodologies, Systems Analysis, Systems Design, Object Oriented Programming (OOP), Software Design, Software Engineering, Systems Architecture, Application Development, Java, Requirements Analysis, C++ (Programming Language), Human Computer Interaction
Beginner · Course · 3 - 6 Months