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.

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java, Computer Programming, Computational Thinking, Spatial Data Analysis, Theoretical Computer Science, Simulations
Intermediate · Course · 3 - 6 Months

Imperial College London
Skills you'll gain: Health Promotion, Behavioral Economics, Public Health, Applied Behavior Analysis, Social Determinants Of Health, Public Health and Disease Prevention, Health Policy, Cultural Diversity, Psychology, Risk Analysis
Beginner · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Node.JS, MongoDB, Angular, Full-Stack Web Development, JavaScript Frameworks, Restful API, Web Applications, Web Development, NoSQL, Front-End Web Development, Application Security, Web Development Tools, Application Programming Interface (API), API Design, Javascript, Database Management, Back-End Web Development, Servers, Middleware
Beginner · Course · 1 - 3 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Data Structures, Functional Design, Object Oriented Programming (OOP), Algorithms, Integrated Development Environments
Intermediate · Course · 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

Skills you'll gain: Audit Planning, Service Level Agreement, Data Governance, Systems Development Life Cycle, Data Loss Prevention, Security Testing, Network Security, Software Development Life Cycle, IT Management, Systems Development, Incident Management, Problem Management, Control Objectives for Information and Related Technology (COBIT), Cryptography, Cloud Management, Software Development Methodologies, Auditing, Quality Assurance, Internal Controls, Risk Management Framework
Intermediate · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Android Development, Mobile Development, Application Development, Data Management, User Interface (UI), UI Components, Human Computer Interaction, Java Programming, Event-Driven Programming, System Programming, Network Model, Geographic Information Systems, Interactive Design, User Interface (UI) Design, Data Storage, Animations, Computer Programming, Computer Graphics
Mixed · Course · 1 - 3 Months

Rice University
Skills you'll gain: International Relations, Intercultural Competence, Social Studies, Cultural Diversity, World History, Diversity Awareness, Political Sciences, Economics, Sociology, Media and Communications
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Core Data (Software), Apple iOS, iOS Development, JSON, Objective-C (Programming Language), OAuth, Authentications, Mobile Development, Single Sign-On (SSO), Secure Coding, Data Store, Cryptographic Protocols, Application Security, Data Persistence
Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Google Cloud Platform, Cloud Infrastructure, Load Balancing, Kubernetes, Generative AI, Infrastructure As A Service (IaaS), Virtual Networking, Cloud Storage, Network Routing, Cloud Computing, Virtual Machines, Containerization, Application Development, TCP/IP, Network Architecture, General Networking, Identity and Access Management, Network Infrastructure, Virtual Private Networks (VPN)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, Responsible AI, Microsoft Copilot, Software Development Tools, AI Workflows, Software Documentation, Artificial Intelligence, Code Review, Natural Language Processing
Beginner · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Deep Learning, Artificial Intelligence and Machine Learning (AI/ML), Tensorflow, Artificial Neural Networks, Convolutional Neural Networks, Recurrent Neural Networks (RNNs), Technology Strategies, Business Strategy, Natural Language Processing, Artificial Intelligence, Machine Learning, Reinforcement Learning, Unsupervised Learning
Beginner · Course · 1 - 3 Months