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 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

Skills you'll gain: Microsoft Excel, Project Management Software, Collaborative Software, Spreadsheet Software, Project Management, Productivity Software, Project Planning, Data Validation
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Performance Tuning, Data-oriented programming, System Programming, C and C++, Computer Architecture, Algorithms, Development Environment, Debugging
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Java Programming, Java, Programming Principles, Computer Programming, Program Development, Code Review, Object Oriented Programming (OOP), Application Programming Interface (API), Object Oriented Design, UI Components, C and C++, Network Model, Test Driven Development (TDD), User Interface (UI), Software Engineering, Debugging, Event-Driven Programming, Data Access, File I/O, Application Development
Intermediate · Course · 1 - 3 Months

École Nationale des Ponts et Chaussées
Skills you'll gain: Petroleum Industry, Sustainable Engineering, Environmental Engineering, Oil and Gas, Environment Health And Safety, Construction Engineering, Civil Engineering, Occupational Safety and Health Administration (OSHA), Safety Assurance, Transportation Operations, Sustainable Design, Energy and Utilities, Materials science, Construction, Chemical Engineering, Technical Standard, Chemistry, Production Process, Performance Testing, Manufacturing Processes
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Penetration Testing, Application Security, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Amazon Web Services, SQL, Operating Systems, C (Programming Language)
Intermediate · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Obstetrics And Gynecology, Anatomy, Family Planning, Endocrinology, Oncology, Physiology, Public Health and Disease Prevention, Biology
Mixed · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Applicant Tracking Systems, Business Writing, Concision, Persuasive Communication, Writing, Marketing, Branding, Resourcefulness, Keyword Research
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Computer Hardware, Computer Systems, Computer Science, Embedded Systems, OS Process Management, Computer Programming, C (Programming Language), Program Development, C# (Programming Language)
Beginner · Course · 1 - 3 Months
University of Pennsylvania
Skills you'll gain: Research, Empowerment, Research Methodologies, Optimism, Positive Behavior Support, Personal Development, Science and Research, Research Design, Mental Health Diseases and Disorders, Psychology, Self-Awareness, Program Evaluation, Creativity, Curiosity
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Process Development, Project Management, Employee Coaching, Kanban Principles, Change Management, Project Documentation, Portfolio Management, Product Improvement, Project Planning, Conflict Management, Quality Assessment, Risk Management, Performance Analysis, Analysis, Communication, Estimation
Advanced · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Timelines, Project Documentation, Team Management, Stakeholder Management, Project Management, Project Management Software, Project Schedules, Project Scoping, Work Breakdown Structure, Project Planning
Beginner · Guided Project · Less Than 2 Hours