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.

Johns Hopkins University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Web Design and Development, Javascript
Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Root Cause Analysis, Six Sigma Methodology, Lean Six Sigma, Quality Improvement, Quality Management, Kaizen Methodology, Lean Methodologies, Quality Management Systems, Process Improvement, Pareto Chart, Quality Control, Statistical Process Controls, Data Analysis, Analysis, Microsoft Excel, Correlation Analysis, Diagram Design, Prioritization
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Marketing Analytics, Customer Analysis, Customer Insights, Digital Media Strategy, Data-Driven Marketing, Marketing Effectiveness, Digital Marketing, Customer Data Management, Digital Analysis, Marketing Strategies, Social Media Marketing, Customer Engagement, Customer experience strategy (CX), Predictive Analytics, Analytics, Data Analysis Software, Consumer Behaviour, Big Data, Data Integration, Data Analysis
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Microservices, Spring Boot, Software Architecture, API Gateway, Spring Framework, Cloud-Native Computing, Service Oriented Architecture, Load Balancing, Systems Architecture, Cloud Computing, Software Design Patterns, Scalability, Restful API, Service Management, Network Routing
Intermediate · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Augmented Reality, Augmented and Virtual Reality (AR/VR), Live Streaming, Multimedia, Emerging Technologies, Market Analysis, Photo/Video Production and Technology, Network Routing, Cloud Services, Network Protocols, Cloud Computing, Application Development, Image Analysis, Computer Vision, Business Modeling, Content Management
Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Android Development, Software Testing, Mobile Development, Java, Development Testing, Unit Testing, Application Development, Integration Testing, Event-Driven Programming, User Interface (UI), Data Persistence
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Cyber Attacks, Cybersecurity, Identity and Access Management, Authentications, Security Controls, Threat Management, Data Security, Information Privacy, Cyber Risk, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Node.JS, API Gateway, MySQL, Restful API, MongoDB, OAuth, Microservices, NoSQL, Object-Relational Mapping, Application Programming Interface (API), Database Design, Relational Databases, Unit Testing, SQL, Cloud Deployment, Databases, MySQL Workbench, Data Persistence, Server Side, Javascript
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Electrical Power, Power Electronics, Electrical Systems, Electrical Equipment, Torque (Physics), Electronic Components, Electric Power Systems, Basic Electrical Systems, Electrical Engineering, Semiconductors, Engineering, Scientific, and Technical Instruments, Mechanical Engineering, Plant Operations and Management, Electronics, Engineering Calculations, High Voltage, Machine Controls, Electronics Engineering, Energy and Utilities, Thermal Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Serverless Computing, Security Strategy, Network Security, Firewall, Cloud Applications, Cloud Management, Distributed Denial-Of-Service (DDoS) Attacks, Cloud Services, System Monitoring, Cloud Security, Cloud Deployment, Application Security, Internet Of Things, Software Development Tools, Artificial Intelligence, Key Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Performance Appraisal, Human Resource Strategy, Human Resources, Compensation Strategy, Talent Management, Human Resources Management and Planning, Human Resource Management, Human Capital, Performance Review, Compensation Management, Performance Management, Human Resource Policies, Compensation and Benefits, Employee Performance Management, Organizational Development, Employee Engagement, Workforce Development, Talent Acquisition, People Management, Employee Retention
Beginner · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Unity Engine, Video Game Development, Animation and Game Design, UI Components, User Interface (UI), Game Design, Animations, User Interface (UI) Design, Interaction Design, Prototyping, C# (Programming Language), Scripting, Application Deployment
Beginner · Course · 1 - 3 Months