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.

The Expert Academy
Skills you'll gain: Selling Techniques, Consultative Selling, Sales, Sales Strategy, B2B Sales, Negotiation, General Sales Practices, Sales Process, Solution Selling, Influencing, Persuasive Communication, Sales Prospecting, Marketing Psychology, Prospecting and Qualification, Consumer Behaviour, Lead Generation, Rapport Building, Customer Relationship Building, Social Media Campaigns, Trustworthiness
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Malware Protection, Cyber Attacks, Cybersecurity, Network Security, Security Software, Cyber Security Policies, Cyber Security Strategy, Brute-force attacks, Distributed Denial-Of-Service (DDoS) Attacks, Security Awareness, Firewall, Exploitation techniques, AI Security, Information Assurance, Multi-Factor Authentication, Encryption, Network Protocols
Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Adaptability, Planning, Plant Operations and Management, Land Management, Environment and Resource Management, Decision Making, Life Sciences, Productivity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sprint Planning, Jira (Software), Scrum (Software Development), User Story, Meeting Facilitation, Backlogs, Agile Methodology, Project Planning, Project Estimation, Agile Project Management, Estimation, Agile Product Development, Agile Software Development, Collaborative Software, Work Breakdown Structure, Product Requirements, Workflow Management, Analysis
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Data Preprocessing, Data Pipelines, AI Workflows, Java Programming, Java, Data Processing, Feature Engineering, Data Wrangling, Data Import/Export, Data Cleansing, Data Quality, Model Training, Data Transformation, Data Validation, Model Deployment, Big Data, Data Integrity, Data Access, Continuous Monitoring
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Web Development Tools, Web Development, Hypertext Markup Language (HTML), Software Development Tools, HTML and CSS, Web Design and Development, Web Applications, Web Design, Web Servers, Development Environment, Process Driven Development, Software Development, Web Content, Front-End Web Development, Semantic Web
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Composure, Stress Management, Mindfulness, Meditation & Breathwork, Emotional Intelligence, Resilience, Self-Awareness, Habit Formation, Mental Concentration, Mental Health, Lifelong Learning, Journals, Accountability, Physiology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Retrieval-Augmented Generation, Generative AI, Generative AI Agents, Microsoft Copilot, Generative Model Architectures, Microsoft Azure, OpenAI API, Fine-tuning, Model Optimization, Prompt Engineering, AI Security, OpenAI, Model Training, Large Language Modeling, Model Deployment, Microsoft Power Platform, LLM Application, AI Integrations
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Transaction Processing, Strategic Leadership, Organizational Leadership, Digital Transformation, Risk Analysis, Business Strategies, Governance, Payment Processing, Financial Systems, Strategic Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Linux Administration, Linux, Linux Commands, Scripting, Scripting Languages, grep, File Management, Command-Line Interface, System Configuration, Data Processing, File I/O, Data Analysis, User Accounts, Automation, Environment, DevOps, Administration
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Data Flow Diagrams (DFDs), Prompt Engineering, AI Integrations, Generative AI, Embeddings, Diagram Design, Large Language Modeling, Vector Databases, Data Pipelines, Applied Machine Learning
Intermediate · Course · 1 - 4 Weeks