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.

DeepLearning.AI
Skills you'll gain: Full-Stack Web Development, Retrieval-Augmented Generation, Web Applications, JavaScript Frameworks, React.js, LLM Application, Web Development, Javascript, Tool Calling, Agentic Workflows, Generative AI Agents, Data Persistence
Beginner · Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Wrangling, Data Integration, Data Manipulation, JSON, Data Transformation, Relational Databases, R (Software), Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Data Structures, File I/O, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Account Strategy, Account Management, Customer Success Management, Customer Engagement, Customer Retention, Customer Relationship Building, Customer Service, Customer Relationship Management, Milestones (Project Management), Relationship Building, Growth Strategies, Expectation Management, Relationship Management, Data-Driven Decision-Making
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Driven Development (TDD), Unit Testing, Development Testing, Test Script Development, Test Case, Software Testing, Python Programming, File I/O
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Restful API, Spring Framework, Spring Boot, Hibernate (Java), API Design, Development Testing, Verification And Validation, Authentications, Object-Relational Mapping, Maintainability, Data Persistence, Authorization (Computing), Application Design, YAML, Role-Based Access Control (RBAC), Endpoint Security, Business Logic, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Graphics Software, Digital Design, Design Software, Graphical Tools, Design Elements And Principles, Computer Graphic Techniques, Creativity, Peripheral Devices
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, Kubernetes, Network Troubleshooting, Performance Tuning, Network Performance Management, Network Routing, Network Security, Network Planning And Design, Network Administration, Scalability
Advanced · Course · 1 - 4 Weeks

Knowledge Accelerators
Skills you'll gain: Productivity Software, Microsoft Excel, Collaborative Software, Microsoft PowerPoint, Presentations, Data Entry, Spreadsheet Software, Microsoft Word, Document Management, Data Management, Version Control, Editing, File Management, Data Sharing, Cloud Storage, Business, Business Analysis
Beginner · Course · Less Than 2 Hours

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

University of California, Santa Barbara
Skills you'll gain: Legal Risk, Business Ethics, Business Risk Management, Law, Regulation, and Compliance, Court Systems, Commercial Laws, Risk Management, Arbitration, Vendor Contracts, Regulatory Compliance, Ethical Standards And Conduct, Personal Injury Law, Contract Management, Regulation and Legal Compliance, Mediation, Litigation and Civil Justice, Conflict Management, Public Policies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Cloud-Native Computing, YAML, Containerization, Devops Tools, Application Deployment, Command-Line Interface, Cloud Deployment, Software Installation, Development Environment, Infrastructure Architecture, Automation, Configuration Management, Application Lifecycle Management, Scalability
Intermediate · Course · 1 - 3 Months

Mixed · Course · 1 - 4 Weeks