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 Michigan
Skills you'll gain: Histogram, Data Visualization, Data Literacy, Data Presentation, Descriptive Statistics, Data Storytelling, Statistics, Data Analysis, Statistical Visualization, Sampling (Statistics), Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, ChatGPT, Application Programming Interface (API), OpenAI, Authentications, Large Language Modeling, Key Management, Performance Tuning, Debugging
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cybersecurity, Threat Management, Security Controls, Cyber Security Strategy, Threat Detection, Cyber Security Policies, Security Awareness, Computer Security Awareness Training, Cyber Risk, Data Security, Network Security, Enterprise Security, Information Assurance, Incident Response, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Networking Hardware, OSI Models, Network Architecture, Network Protocols, Network Security, TCP/IP, Computer Networking, Local Area Networks, Virtual Private Networks (VPN), Wireless Networks, Network Routing, Wide Area Networks, Network Switches, Virtual Local Area Network (VLAN), Firewall
Intermediate · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Microsoft Excel, Spreadsheet Software, Excel Formulas, Dashboard, Data Entry, Business Reporting, Data Cleansing, Data Visualization, Data Management, Analytics, Data Validation
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Alibaba Cloud Academy
Skills you'll gain: Data Visualization Software, Big Data, Apache Hadoop, Apache Spark, Apache Hive, Distributed Computing, Data Processing, Data Warehousing, Data Analysis, Data Integration, Cloud Security, Artificial Intelligence and Machine Learning (AI/ML), SQL
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Javascript, Event-Driven Programming, Web Development Tools, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AWS SageMaker, MLOps (Machine Learning Operations), Feature Engineering, AI Personalization, Amazon Web Services, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Amazon Elastic Compute Cloud, Data Cleansing, Data Processing, Data Wrangling, Data Integrity, Machine Learning, Machine Learning Algorithms, Data Modeling, Supervised Learning, Data Mining, Random Forest Algorithm, Data Management, Unsupervised Learning
Intermediate · Specialization · 3 - 6 Months

Accenture
Skills you'll gain: Data Literacy, Computer Literacy, Microsoft Excel, Data Security, Data Analysis, Programming Principles, Emerging Technologies, Computer Security Awareness Training, Digital Communications, Computer Programming, Scripting Languages, Web Development, Information Technology, Business Technologies, Javascript, Python Programming, Blockchain, Cloud Computing, Computer Hardware, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, LLM Application, Prompt Engineering, Large Language Modeling, OpenAI, Development Environment, Generative AI Agents, Artificial Intelligence, Natural Language Processing, Python Programming, Document Management, Application Development, Image Analysis, Front-End Web Development
Intermediate · Course · 3 - 6 Months

Skills you'll gain: React Redux, React.js, Back-End Web Development, Front-End Web Development, UI Components, Web Applications, JavaScript Frameworks, Authentications, Responsive Web Design, Restful API, Full-Stack Web Development, User Interface (UI), User Accounts, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Basic Electrical Systems, Electronic Components, Electronics, Programming Principles, Interactive Design, Display Devices, Computer Programming, Embedded Systems, Development Environment, Simulation and Simulation Software, Digital Communications, Debugging, Data Storage, Real Time Data
Beginner · Course · 3 - 6 Months