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: Sales Enablement, Sales Management, Customer Analysis, Sales Strategy, Marketing, Target Market, Verbal Communication Skills, Sales Training, Sales Process, Sales, Business Transformation, Smart Goals, Return On Investment, Customer experience strategy (CX), Leadership, Organizational Structure
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, IT Automation, Data Storage Technologies, Hardening, Package and Software Management, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, User Interface (UI), Web Applications, User Accounts, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Responsive Web Design, Authentications, Data Validation
Intermediate · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Deepseek, Responsible AI, LLM Application, Generative Model Architectures, AI Product Strategy, Application Deployment, Data Ethics, Case Studies, Prompt Engineering, Automation, Integration Testing, Process Optimization, Program Evaluation, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Server Side, Web Development, Web Scraping, Web Applications, Back-End Web Development, Integration Testing, Web Development Tools, Web Services, Extensible Markup Language (XML), Package and Software Management, Development Testing, Unit Testing, Scripting, Performance Tuning, Cross Platform Development, Hypertext Markup Language (HTML), Interoperability, Debugging
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Software-Defined Networking, Network Security, Infrastructure Security, Computer Networking, Local Area Networks, Network Architecture, Network Infrastructure, Wide Area Networks, Virtualization, Scalability
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Django (Web Framework), Model View Controller, Authentications, Data Import/Export, Full-Stack Web Development, Web Development, Data Modeling, Object-Relational Mapping, Data Store, Cascading Style Sheets (CSS), Responsive Web Design, Javascript, User Interface (UI), Development Environment, Data Validation, Debugging
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

Board Infinity
Skills you'll gain: VMware ESX Servers, Patch Management, Virtual Machines, Virtualization, Infrastructure Security, Identity and Access Management, Data Centers, Cloud Infrastructure, Cloud Computing, Servers, Kubernetes, Data Storage Technologies, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Reinforcement Learning, Applied Machine Learning, Machine Learning Algorithms, Artificial Intelligence, Dimensionality Reduction, Statistical Analysis, Classification And Regression Tree (CART), Supervised Learning, Unsupervised Learning, Predictive Modeling, Random Forest Algorithm, Feature Engineering, Data Manipulation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Apple Xcode, Apple iOS, Swift Programming, JSON, Application Deployment, Mobile Development, User Interface (UI), Application Development, User Interface (UI) Design, Application Programming Interface (API), Data Store, Data Structures
Beginner · Course · 1 - 3 Months
Skills you'll gain: Continuous Integration, Code Coverage, Code Review, Vulnerability, CI/CD, Application Security, DevSecOps, Vulnerability Assessments, Software Quality Assurance, Maintainability, Software Quality (SQA/SQC), GitHub, Software Installation, System Configuration, Security Management, Data Integration, Quality Improvement, Analysis
Intermediate · Course · 1 - 4 Weeks