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: Scaled Agile Framework, Agile Methodology, Backlogs, Kanban Principles, Sprint Retrospectives, Sprint Planning, Project Management Institute (PMI) Methodology, Prioritization, Lean Methodologies, Project Management Life Cycle, Waterfall Methodology, Continuous Integration
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Query Languages, Data Analysis, Software Installation, Performance Tuning, Distributed Computing, Scalability, Data Modeling, Cloud Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Purchasing, Supplier Relationship Management, Contract Management, Supplier Management, Procurement, Vendor Management, Strategic Sourcing, Negotiation, Business Ethics, Compliance Management, Supply Chain Management, Communication
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Lean Manufacturing, Lean Methodologies, Lean Six Sigma, Kaizen Methodology, Operational Efficiency, Performance Measurement, Manufacturing Operations, Quality Improvement, Operational Excellence, Business Process, Quality Management, Process Improvement, Performance Metric, Waste Minimization, Kanban Principles, Quality Control, Six Sigma Methodology, Continuous Improvement Process, Quality Assurance and Control, Business Metrics
Beginner · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Business Modeling, Business Architecture, Entrepreneurship, Storytelling, Design Thinking, Business Strategies, Business Strategy, Innovation, Strategic Thinking, Systems Thinking, Business, Presentations, Media and Communications, Case Studies, Market Opportunities, Value Propositions, Competitive Analysis
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, Data Structures, Algorithms, Maintainability, Performance Tuning, File Management, Debugging
Intermediate · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Cybersecurity, Network Security, Information Systems Security, Cyber Threat Intelligence, Deep Learning, Applied Machine Learning, Responsible AI, Intrusion Detection and Prevention, Fraud detection, Malware Protection, Natural Language Processing, Artificial Intelligence, Anomaly Detection, Machine Learning, Classification Algorithms, Data Preprocessing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Wrangling, Data Import/Export
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Manipulation, Tidyverse (R Package), Data Wrangling, Data Analysis, R Programming, Exploratory Data Analysis, Statistical Analysis
Beginner · Guided Project · Less Than 2 Hours

Erasmus University Rotterdam
Skills you'll gain: Analysis, Data Analysis, Statistical Reporting, Analytical Skills, Exploratory Data Analysis, Quantitative Research, Statistical Analysis, Statistical Software, Small Data, R (Software), R Programming, Sampling (Statistics), Technical Communication, Research Methodologies, Scatter Plots, Statistical Hypothesis Testing, Data Collection
Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: Development Environment, Web Development, Computer Programming, Program Development, Other Programming Languages, Software Development Tools
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, Data Structures, Debugging
Intermediate · Course · 1 - 4 Weeks