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.

Simplilearn
Skills you'll gain: Backlogs, Scrum (Software Development), Sprint Retrospectives, Sprint Planning, Agile Methodology, Agile Project Management, User Story, Product Management, Meeting Facilitation, Team Leadership
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Data Structures, Programming Principles, Python Programming, Computer Programming, Computational Thinking, Scripting, Software Development Tools, Integrated Development Environments, Data Import/Export, Jupyter, File Management
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Responsible AI, Incident Response, Data Ethics, Generative AI, LLM Application, Application Security, Large Language Modeling, Security Engineering, Threat Modeling, Cybersecurity, Security Controls, IT Security Architecture, Information Systems Security, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Machine Learning, Security Management, MLOps (Machine Learning Operations), Agentic systems, Ethical Standards And Conduct
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Web Development Tools, Javascript, Development Environment, Integrated Development Environments, Computer Programming, Debugging, HTML and CSS, Data Structures
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Web Development, Web Development Tools, Cascading Style Sheets (CSS), Front-End Web Development, Web Design, Javascript, Interactive Design, Web Applications, Full-Stack Web Development, Back-End Web Development
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Recognizing Others, Sales Management, Team Motivation, Employee Onboarding, Conflict Management, Drive Engagement, Team Leadership, Sales Process, Virtual Teams, Team Management, Teamwork, Intercultural Competence, Performance Management, Collaboration, Rapport Building, Smart Goals, Meeting Facilitation, Goal Setting, Coaching, Constructive Feedback
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, HTML and CSS, Application Deployment, Web Development, Front-End Web Development, Web Applications, Web Development Tools, Full-Stack Web Development, Web Frameworks, Performance Tuning, Javascript, Server Side, GitHub, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

The Linux Foundation
Skills you'll gain: Bash (Scripting Language), File Systems, Package and Software Management, Linux, Command-Line Interface, Unix Commands, Linux Commands, Shell Script, Scripting, Software Development Tools, File Management, Scripting Languages, Program Development, System Programming, Java, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Technology Strategies, IT Management, Operational Efficiency, Contract Management, Information Technology, Digital Transformation, Enterprise Architecture, Risk Management, Governance, Operational Analysis, Service Management, Technology Solutions, Business Strategy, Business Process, Service Design, Strategic Planning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Google Cloud Platform, YAML, Restful API, Load Balancing, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Workflow Management, Marketing Automation, Social Media Content
Beginner · Course · 1 - 3 Months

Skills you'll gain: Event-Driven Programming, Graphics Software, Computer Graphics, Video Game Development, Computer Graphic Techniques, Development Environment, Debugging, Application Development
Mixed · Course · 1 - 4 Weeks