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.

LearnQuest
Skills you'll gain: Help Desk Support, System Configuration, Computer Hardware, Networking Hardware, Hardware Troubleshooting, Technical Support, Peripheral Devices, Desktop Support, Computer Networking, General Networking, Operating Systems, Wireless Networks
Beginner · Course · 1 - 4 Weeks

The State University of New York
Skills you'll gain: Bioinformatics, Big Data, Analytics, Data Mining, Health Informatics, Biomedical Technology, R Programming, Predictive Modeling, Statistical Analysis, Molecular Biology, Feature Engineering, Data Preprocessing, Classification Algorithms
Advanced · Course · 1 - 3 Months

Icahn School of Medicine at Mount Sinai
Skills you'll gain: Mental and Behavioral Health, Primary Care, Patient Education And Counseling, Surgery, Patient-centered Care, Treatment Planning, Pharmacotherapy, Endocrinology, Health Equity, Health Care, Patient Communication
Beginner · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Unity Engine, Video Game Development, User Interface (UI), Game Design, Animations, Google Analytics, Prototyping, Object Oriented Programming (OOP), C# (Programming Language), Scripting, Application Deployment
Beginner · Course · 1 - 3 Months

Skills you'll gain: HVAC, Building Services Engineering, Thermal Management, Mechanical Engineering, Engineering Calculations, Energy and Utilities, Estimation, Environmental Issue
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Threat Modeling, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, Security Awareness, Change Control, Computer Security Awareness Training, Cybersecurity, Security Management, Data Security, Safety and Security, Cyber Security Policies, Data Ethics, Data Integrity, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Object Oriented Design, Debugging, Software Design, User Interface (UI), Apache Maven, Design Thinking, Object Oriented Programming (OOP), Program Development, Build Tools, Integrated Development Environments, Software Development Tools, Eclipse (Software), Data Validation, Version Control, JUnit, Software Development, Git (Version Control System), Data Import/Export, Java
Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Scatter Plots, Plot (Graphics), Data Visualization, Data Visualization Software, Heat Maps, R Programming, Graphical Tools, Data Wrangling, Tidyverse (R Package), Graphics Software
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: TypeScript, Node.JS, Web Development Tools, React.js, Server Side, Javascript, Data Structures, Web Development, Data Validation, Web Design, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Responsible AI, AI Enablement, Data Ethics, Large Language Modeling, Technical Communication, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, Configuration Management, API Gateway, JUnit, Java Programming, Java, Application Design, Unit Testing, Middleware, Service Oriented Architecture, Software Design Patterns, Authentications
Advanced · Course · 1 - 4 Weeks