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.

Skills you'll gain: Blockchain, Threat Modeling, Cryptography, Cryptographic Protocols, Threat Management, Security Engineering, Network Security, Cyber Threat Intelligence, Data Security, Threat Detection, Vulnerability Assessments, Information Systems Security, Cyber Security Strategy, Encryption, Key Management, Network Protocols, Scripting, Regulatory Compliance, Financial Regulation, Scalability
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Javascript, JavaScript Frameworks, Node.JS, Event-Driven Programming, Application Programming Interface (API), Debugging
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Amazon DynamoDB, Amazon Web Services, NoSQL, Database Management, Database Design, Data Store, Development Environment, Command-Line Interface, JSON, Application Programming Interface (API), Software Development Tools, Performance Tuning, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Javascript, Event-Driven Programming, HTML and CSS, Application Deployment, Web Development, Full-Stack Web Development, Scripting, Programming Principles, GitHub, Application Development, Object Oriented Programming (OOP), User Interface (UI) Design, Data Validation, Data Structures
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Javascript, Restful API, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Command-Line Interface, Operating Systems, Python Programming, File Management, Scripting, User Interface (UI), Data Import/Export, Data Structures, Simulations
Mixed · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Reinforcement Learning, Artificial Intelligence, Applied Machine Learning, Machine Learning, Supervised Learning, Unsupervised Learning, Markov Model
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Exploratory Data Analysis, Statistical Visualization, Data Visualization Software, R Programming, Ggplot2, Plot (Graphics), Statistical Methods, Data Analysis, Unsupervised Learning, Spatial Data Analysis, Dimensionality Reduction, Graphical Tools, Color Theory, Analytics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Large Language Modeling, Natural Language Processing, Model Evaluation, Recurrent Neural Networks (RNNs), Transfer Learning, PyTorch (Machine Learning Library), Artificial Neural Networks, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning, Machine Learning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Animations, Object Oriented Programming (OOP), User Interface (UI), Software Development Tools, C# (Programming Language), Scripting, Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Enablement, Responsible AI, Risk Management, Data-Driven Decision-Making
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, Microsoft Visual Studio, Microsoft Excel, R Programming, Data Processing, Data Cleansing
Beginner · Course · 1 - 4 Weeks