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.

Arizona State University
Skills you'll gain: Intellectual Property, Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Data Security, Storytelling, Content Creation, Cyber Security Strategy, Digital Publishing, Vulnerability Assessments, Non-Verbal Communication, Health Technology, Interpersonal Communications, Communication, Personal Care, Constructive Feedback, Problem Solving, Collaboration, Computer Literacy, Data Literacy
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: CI/CD, Continuous Integration, Jenkins, Continuous Deployment, Dashboard Creation, Devops Tools, User Accounts, Configuration Management, Identity and Access Management, Application Programming Interface (API), Authorization (Computing)
Intermediate · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: HVAC, Water Resource Management, Plant Operations and Management, Environmental Management Systems, Thermal Management, Water Quality, Environmental Monitoring, Biology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Metadata Management, Extract, Transform, Load, Data Integration, Data Pipelines, Business Logic, Data Processing, Java, Data Import/Export, Data Transformation, Software Documentation
Mixed · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Working Capital, Financial Analysis, Financial Statement Analysis, Financial Statements, Cash Management, Cash Flows, Benchmarking, Return On Investment, Balance Sheet, Credit Risk, Performance Analysis, Financial Modeling, Performance Measurement, Income Statement, Operational Efficiency, Accounting, Corporate Finance, Performance Metric, Trend Analysis, Business
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Communication Planning, Marketing Strategy and Techniques, Strategic Communication, Digital Marketing, Digital Media Strategy, Target Audience, Market Analysis
Mixed · Course · 1 - 3 Months

Skills you'll gain: Hypertext Markup Language (HTML), Frontend Performance, HTML and CSS, Web Applications, Javascript, Performance Tuning, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Whizlabs
Skills you'll gain: Google Cloud Platform, Looker (Software), Dataflow, Cloud Engineering, Data Migration, Data Architecture, Data Infrastructure, Cloud Computing Architecture, Cloud Storage, Data Pipelines, Cloud Computing, Cloud Solutions, NoSQL, Data Import/Export, Data Processing, Cloud Security, Data Storage, Site Reliability Engineering, Data Visualization, Data Storage Technologies
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Application Development, User Interface (UI), Program Development, Software Development Life Cycle, UI Components, Data Management, User Interface (UI) Design, Software Design, File I/O, Application Design, Development Environment, Data Import/Export, Application Frameworks, Data Persistence
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Business Analysis, Stakeholder Engagement, Stakeholder Management, Business Requirements, Solution Design, Requirements Management, Stakeholder Communications, Business Process, Business Strategies, Requirements Elicitation, Stakeholder Analysis, Performance Analysis, Strategic Thinking, Governance, Performance Measurement, Business Solutions
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Version Control, Debugging, Git (Version Control System), Microsoft Visual Studio, C# (Programming Language), .NET Framework, Development Environment, Integrated Development Environments, Program Development, Computer Programming Tools, Microsoft Development Tools, Software Development Tools, Code Reusability, Package and Software Management, Software Installation, File Management, User Interface (UI)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), React.js, HTML and CSS, Front-End Web Development, Hypertext Markup Language (HTML), Web Development, Web Design, JavaScript Frameworks, Javascript, Restful API, UI Components, Event-Driven Programming
Beginner · Course · 3 - 6 Months