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.

LearnQuest
Skills you'll gain: Agentic Workflows, Generative AI Agents, Agentic systems, AI Workflows, AI Enablement, Responsible AI, Artificial Intelligence, AI Security, Technical Communication, Automation, AI Integrations, Workflow Management, Risk Analysis, Business Workflow Analysis, Process Mapping, Governance
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Memory Management, C++ (Programming Language), C (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Programming Principles, Software Design, Python Programming, Java, Algorithms, Performance Tuning
★ 4.5 (14) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: AutoCAD, Technical Drawing, Engineering Drawings, Computer-Aided Design, Architectural Drawing, Drafting and Engineering Design, Autodesk, User Interface (UI)
★ 4.7 (24) · Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Prompt Engineering, AI Integrations, ChatGPT, AI literacy, Presentations, Generative AI, AI Personalization, AI Workflows, Artificial Intelligence, Brainstorming
★ 4.3 (15) · Mixed · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Semiconductors, Electronic Components, Chemical Engineering, Electronics, Manufacturing Processes, Materials science, Electrical Engineering, Laboratory Procedures, Engineering, Mechanical Engineering, Goal Setting, Emerging Technologies, Problem Solving, Self-Starter, Higher Education, Time Management, Critical Thinking
★ 4.9 (15) · Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Google Ads, Data-Driven Marketing, Meta Ads Manager, Paid media, Keyword Research, Social Media Campaigns, Campaign Planning, Marketing Analytics, Marketing Effectiveness
★ 4.8 (22) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Infrastructure as Code (IaC), Terraform, Amazon Web Services, Cloud Deployment, IT Infrastructure, Amazon Elastic Compute Cloud, Cloud Infrastructure, IT Automation, Amazon S3, Command-Line Interface, Configuration Management, Development Environment, Dependency Analysis, Software Installation, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Algorithms, Java, Java Programming, Programming Principles, Computer Programming, Performance Tuning, Computational Thinking, Theoretical Computer Science, Solution Design
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cybersecurity, Cyber Attacks, Threat Management, Security Controls, Threat Detection, Cyber Security Policies, Security Awareness, Computer Security Awareness Training, Cyber Risk, Cyber Security Assessment, Data Security, Enterprise Security, Information Assurance, Data Integrity
★ 4.8 (64) · Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Leadership Studies, Leadership and Management, Organizational Structure, Business Leadership, Organizational Leadership, Performing Arts, Music, Drive Engagement, Motivational Skills, Business Management, Storytelling, Oral Expression, Leadership, People Management, Productivity, Musical Composition, Workforce Management, Writing and Editing, Organizational Development, Employee Engagement
★ 4.8 (14) · Beginner · Course · 1 - 4 Weeks

Tencent Cloud
Skills you'll gain: Data Storage Technologies, Cloud Computing, Cloud Platforms, Database Management, Cloud Storage, Cloud Security, Cloud Infrastructure, Cloud Services, Cloud Computing Architecture, Databases, Public Cloud, Cloud Standards, Virtual Machines, Virtualization, Virtual Networking, Load Balancing
★ 4.7 (56) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Programming Principles, Computer Programming, Python Programming, Computer Science
★ 4.5 (66) · Intermediate · Course · 1 - 4 Weeks