Objective-C courses can help you learn the basics of object-oriented programming, memory management, and the Cocoa framework for macOS and iOS app development. You can build skills in creating user interfaces, handling data with Core Data, and integrating APIs for enhanced functionality. Many courses introduce tools like Xcode for coding and debugging, as well as Interface Builder for designing app layouts, helping you apply these skills in real-world app projects.

University of Colorado System
Skills you'll gain: TCP/IP, Local Area Networks, Routing Protocols, Network Routing, Digital Communications, OSI Models, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Planning And Design, Network Architecture, Computer Networking, Network Infrastructure, Network Performance Management, Wireless Networks, Graph Theory, Telecommunications, Software-Defined Networking, Algorithms, System Programming
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Deep Learning, MLOps (Machine Learning Operations), Responsible AI, Model Evaluation, Data Ethics, Data Management, Project Management Life Cycle, Unsupervised Learning, Human Computer Interaction, User Experience Design, Classification And Regression Tree (CART), Data Quality, Model Deployment, Data Preprocessing, Human Centered Design, Machine Learning, Project Management, Product Management, Product Design, Data Science
Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Image Analysis, Event-Driven Programming, Scalability, C and C++, Distributed Computing, Computer Graphics, System Programming, Program Development, Performance Tuning, Data Structures, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Target Audience, Facebook, Advertising Campaigns, Social Media Campaigns, Campaign Management, Social Media, Social Media Management, Paid media, Social Media Marketing, Advertising, Marketing Budgets, Digital Advertising, Marketing, Digital Marketing, Budgeting
Intermediate · Guided Project · Less Than 2 Hours

École Polytechnique Fédérale de Lausanne
Skills you'll gain: C++ (Programming Language), Programming Principles, Data Structures, Computer Programming, Game Design, Algorithms, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Design Strategies, Project Design, Design, Consultative Approaches, Design Elements And Principles, Project Planning, Client Services, Project Management, Aesthetics
Beginner · Course · 1 - 4 Weeks

University of Geneva
Skills you'll gain: Water Resources, Water Resource Management, Water Sustainability, Natural Resource Management, Environmental Laws, Environmental Policy, Governance, International Relations, Policy Analysis, Case Studies
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Engineering Management, Team Leadership, Stakeholder Management, Team Management, Project Scoping, Resource Management, Team Building, Requirements Management, Stakeholder Analysis, Project Coordination, Project Management, Project Management Life Cycle, Communication, Business Communication
Build toward a degree
Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, NoSQL, Apache Cassandra, Cloud Computing, Systems Design, Data Storage Technologies, Apache Hadoop, Database Theory, Algorithms, Theoretical Computer Science, Scalability, C++ (Programming Language), Network Protocols
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Software, Linux, Embedded Systems, Debugging, Operating Systems, Peripheral Devices, Build Tools, Shell Script, File Systems, USB, Development Environment, C (Programming Language)
Advanced · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Secure Coding, Computer Programming Tools, C and C++, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Software Development Tools, Exploit development, Debugging, Interoperability, Unix, Embedded Systems, Vulnerability Assessments, Unix Commands, File I/O, Operating Systems, Data Security, Linux, Microsoft Windows
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Interviewing Skills, Recruitment, Oral Expression, Follow Through, Communication, Business Writing
Beginner · Guided Project · Less Than 2 Hours