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.

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Web Design and Development, Web Design, Web Content Accessibility Guidelines, Visualization (Computer Graphics), Computer Graphics, Front-End Web Development, Semantic Web, Web Content, Usability, Javascript, Data Validation
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Applications, Javascript, Other Programming Languages, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Programming Principles
Intermediate · Course · 1 - 4 Weeks
Starweaver
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI Agents, Enterprise Application Management, AI Workflows, ChatGPT, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Large Language Modeling, Systems Architecture, Model Evaluation, Context Management, Program Evaluation, Process Optimization, Performance Tuning, Application Programming Interface (API), Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management
Beginner · Course · 3 - 6 Months

Skills you'll gain: TypeScript, UI Components, React.js, Web Applications, Front-End Web Development, Javascript, Programming Principles, Data Management, Debugging
Intermediate · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Deepseek, Model Deployment, AI Enablement, Responsible AI, LLM Application, Generative Model Architectures, Competitive Analysis, AI Workflows, Strategic Planning, AI Personalization, Application Deployment, Data Ethics, Model Evaluation, Case Studies, Prompt Engineering, Cost Benefit Analysis, Automation, Integration Testing, Process Optimization, Program Evaluation
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Microsoft Azure, Azure Synapse Analytics, Data Integration, Cloud Storage, Data Lakes, Data Pipelines, Data Storage, Databricks, Microsoft SQL Servers, NoSQL, .NET Framework, Data Security, Real Time Data, Encryption, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JavaScript Frameworks, Vue.JS, Front-End Web Development, Responsive Web Design, React.js, Web Development Tools, Application Programming Interface (API), HTML and CSS, Angular, Cascading Style Sheets (CSS), Javascript
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Social Impact, Initiative and Leadership, Innovation, Social Justice, Community Outreach, Compassion, Research, Storytelling, Adaptability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agile Project Management, Sprint Planning, Agile Product Development, Agile Methodology, Sprint Retrospectives, Team Management, Project Management Institute (PMI) Methodology, Team Building, Scalability, Conflict Management, Team Leadership, Backlogs, Prioritization, Kanban Principles, Continuous Improvement Process, Risk Management
Mixed · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Data Validation, Web Development Tools
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Strategic Leadership, Business Leadership, Change Management, Organizational Change, Leadership, Organizational Leadership, Visionary, Decision Making, Communication, Executive Presence, Culture Transformation, Organizational Strategy, Emotional Intelligence, Workplace inclusivity, Conflict Management, Negotiation, Performance Management, Empathy
Intermediate · Course · 1 - 4 Weeks