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.

Macquarie University
Skills you'll gain: Cryptography, Encryption, Network Security, Cybersecurity, Security Engineering, Network Protocols, Federated Learning, Security Management
Beginner · Course · 1 - 3 Months

Case Western Reserve University
Skills you'll gain: Exploratory Data Analysis, Spatial Data Analysis, Spatial Analysis, Geospatial Mapping, Geospatial Information and Technology, Descriptive Statistics, Statistical Modeling, R Programming, Statistical Analysis, R (Software), Probability & Statistics, Statistical Programming, Data-Driven Decision-Making, Data Analysis, Simulations, Statistical Methods, Rmarkdown, Data Cleansing, Box Plots, Plot (Graphics)
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Financial Modeling, Descriptive Statistics, Data Literacy, Financial Forecasting, Reconciliation, Financial Analysis, A/B Testing, Portfolio Risk, Model Evaluation, Data Cleansing, Classification And Regression Tree (CART), Regression Analysis, Exploratory Data Analysis, Predictive Modeling, Data Analysis, Risk Analysis, Risk Management, R Programming, Statistical Analysis, Machine Learning
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Customer experience improvement, Customer experience strategy (CX), Service Design, Design Thinking, Change Management, Organizational Change, Service Improvement, Culture Transformation, Process Mapping, Key Performance Indicators (KPIs), Journey Mapping, Customer Service, Hospitality Management, Hospitality, Guest Relations, Customer Analysis, Hotel And Restaurant Management, Hospitality and Food Services, Sustainable Business, Collaboration
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Model Evaluation, Statistical Modeling, Applied Machine Learning, Unsupervised Learning, Statistical Machine Learning, Data Science, Decision Tree Learning, Statistical Methods, Classification And Regression Tree (CART), Artificial Neural Networks, Statistical Analysis, Regression Analysis, Predictive Modeling, Machine Learning Methods, Classification Algorithms, Supervised Learning, R Programming, Statistical Inference, Machine Learning Algorithms, Dimensionality Reduction
Build toward a degree
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Semiconductors, Manufacturing Standards, Production Process, Manufacturing Operations, Electronics Engineering, Manufacturing Processes, Electronics, Manufacturing and Production, Process Control, Process Engineering, Chemical Engineering, Technical Standard, Equipment Design, Facility Management, Infrastructure Architecture, Infrastructure Security, Security Controls, Network Infrastructure, Analysis
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: jQuery, Javascript and jQuery, UI Components, Scripting, JavaScript Frameworks, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Hypertext Markup Language (HTML), Frontend Performance, Animations, Event-Driven Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Tensorflow, Google Cloud Platform, Scripting, Data-Driven Decision-Making, Model Training, Applied Machine Learning, Machine Learning Methods, Artificial Neural Networks, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Development Environment
Beginner · Project · Less Than 2 Hours

Skills you'll gain: LangChain, LLM Application, Hugging Face, Retrieval-Augmented Generation, Prompt Patterns, LangGraph, Model Deployment, AI Workflows, Large Language Modeling, AI Orchestration, Generative AI, Token Optimization, Generative Model Architectures, AI Integrations, Fine-tuning, Embeddings, Data Pipelines, Containerization, Restful API, Docker (Software)
Intermediate · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Media Relations, Internal Communications, Crisis Management, Strategic Communication, Communication Planning, Public Relations, Media Strategy, Communication Strategies, Stakeholder Communications, AI literacy, AI Integrations, Real Time Data
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Git (Version Control System), GitHub, Version Control, Integrated Development Environments, IntelliJ IDEA, Software Development Tools, Eclipse (Software), Code Review, CI/CD, Microsoft Visual Studio, Development Environment, Software Versioning, Collaborative Software, Continuous Integration, Software Development, Remote Access Systems, Configuration Management, DevOps, Open Source Technology, Release Management
Beginner · Specialization · 3 - 6 Months