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: Extract, Transform, Load, Apache Spark, Data Pipelines, PySpark, Apache Hadoop, Data Transformation, MySQL, Data Manipulation, Java Platform Enterprise Edition (J2EE), Data Store, Data Import/Export, Development Environment, Software Installation, System Configuration
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: CI/CD, Continuous Integration, Jenkins, Continuous Deployment, DevOps, Devops Tools, Build Tools, User Accounts, Configuration Management, Continuous Monitoring, Application Programming Interface (API), Authorization (Computing)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Collaborative Software, Version Control, Integrated Development Environments, Debugging, Git (Version Control System), Application Deployment, Cloud Development, GitHub, Development Environment, Application Development, Code Review, File Management, Software Development Tools, Configuration Management, Cloud Storage
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Spreadsheet Software, Financial Statements, Financial Statement Analysis, Financial Acumen, Excel Formulas, Microsoft Excel, Content Marketing, Balance Sheet, Profit and Loss (P&L) Management, Cash Flows, Registration, Web Servers
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Web Frameworks, Application Deployment, Configuration Management, Application Performance Management, Model View Controller, UI Components, Virtual Environment, Server Side
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Software-Defined Networking, Wide Area Networks, Network Planning And Design, Virtual Private Networks (VPN), Network Architecture, Cloud Computing, Network Infrastructure, Network Routing, Network Troubleshooting, System Configuration, Configuration Management, Scalability
Beginner · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Server Side, Restful API, Ajax, Node.JS, Full-Stack Web Development, Web Applications, Web Servers, Web Development, Model View Controller, Javascript, PHP (Scripting Language), Application Programming Interface (API), Authentications, JSON, Hypertext Markup Language (HTML), Software Architecture, Real Time Data
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Restful API, Database Design, API Design, MongoDB, Database Management, Authentications, Application Programming Interface (API), Relational Databases, Databases, Authorization (Computing), Secure Coding, NoSQL, SQL, Node.JS, Scalability
Intermediate · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: R Programming, Statistical Methods, Statistical Analysis, Case Studies, Statistical Modeling, Regression Analysis, Advanced Analytics, Statistical Hypothesis Testing, Probability & Statistics, Statistical Inference, Business Analytics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Unity Engine, Video Game Development, Event-Driven Programming, C# (Programming Language), User Interface (UI), Scripting, Animations, Debugging
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon Bedrock, Responsible AI, Generative AI Agents, Generative AI, Amazon CloudWatch, Amazon Web Services, LLM Application, Prompt Engineering, Large Language Modeling, Amazon S3, Security Controls, AWS Identity and Access Management (IAM), Automation, Systems Integration, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Cloud Security, DevSecOps, Threat Management, Zero Trust Network Access, Cloud Computing Architecture, Cloud Standards, Solution Architecture, Cybersecurity, Cloud Computing, Security Controls, Security Strategy, Enterprise Architecture, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks