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.

University of Maryland, College Park
Skills you'll gain: Construction Management, Cost Management, Facility Management, Communication Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Regression Analysis, Data Science, Machine Learning Methods, R Programming, Statistical Inference, Applied Machine Learning, Machine Learning, Statistical Methods, Advanced Analytics, Data Analysis, Predictive Modeling
Beginner · Guided Project · Less Than 2 Hours

Jordan University of Science and Technology
Skills you'll gain: Object Oriented Programming (OOP), C# (Programming Language), Data Structures, Software Development, Computer Programming, Programming Principles, Java, Debugging, Query Languages, Data Validation
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Ggplot2, Data Visualization Software, Data Visualization, Datamaps, Visualization (Computer Graphics), Interactive Data Visualization, Scatter Plots, Histogram, Graphic and Visual Design, R Programming, Geospatial Mapping
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Algorithms, Graph Theory, Programming Principles, Theoretical Computer Science, Computer Science, Computer Programming, Python Programming, Pandas (Python Package), Machine Learning Algorithms, Computational Thinking, C++ (Programming Language), Data Architecture, Random Forest Algorithm, Performance Tuning, Object Oriented Programming (OOP), Network Analysis, Program Development, Problem Solving, Debugging
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: React.js, JavaScript Frameworks, UI Components, Javascript, Web Development, User Interface (UI)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Program Development, C and C++, C++ (Programming Language), Object Oriented Programming (OOP), Computer Programming, Development Environment, Software Development, Computer Science
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Web Analytics and SEO, Search Engine Optimization, Content Marketing, Web Analytics, Blogs, Search Engine Marketing, Content Creation, MarTech, Marketing Strategy and Techniques, Digital Marketing, Growth Strategies, Content Strategy, Market Research
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: JSON, Apple iOS, Mobile Development, Application Programming Interface (API), Swift Programming, Data Storage, Model View Controller, Data Modeling, Data Storage Technologies, UI Components, Network Protocols
Advanced · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Incident Response, Incident Management, Cyber Governance, Computer Security Incident Management, Security Awareness, Cyber Security Strategy, Law, Regulation, and Compliance, Cyber Attacks, Security Management, Security Strategy, Culture Transformation, Cyber Security Policies, Intrusion Detection and Prevention, Mobile Security, Threat Detection, Disaster Recovery, Cybersecurity, Cyber Risk, Cyber Operations, Cyber Security Assessment
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Vue.JS, HTML and CSS, Web Applications, JavaScript Frameworks, Front-End Web Development, Web Design and Development, Javascript, Data Storage Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Networking Hardware, Network Monitoring, OSI Models, Routing Protocols, Software-Defined Networking, Network Troubleshooting, Network Architecture, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Network Security, TCP/IP, Network Routing, Computer Networking, Dynamic Host Configuration Protocol (DHCP), Network Administration, Network Routers, Local Area Networks, Hardening, Virtual Private Networks (VPN), Intrusion Detection and Prevention
Intermediate · Specialization · 3 - 6 Months