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.

Sapienza University of Rome
Skills you'll gain: Ancient History, Data Collection, Scientific Methods, Research Methodologies, Research, Investigation, Land Management, World History, Cultural Responsiveness, Timelines
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Root Cause Analysis, Six Sigma Methodology, Quality Management, Kaizen Methodology, Lean Methodologies, Process Improvement, Pareto Chart, Quality Control, Statistical Process Controls, Data Analysis, Corrective and Preventive Action (CAPA), Microsoft Excel, Diagram Design
Intermediate · Course · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Data Modeling, Business Intelligence, Microsoft Excel, Excel Formulas, Pivot Tables And Charts, Data Analysis Software, Data Manipulation, Time Series Analysis and Forecasting
Beginner · Course · 1 - 3 Months

Skills you'll gain: Digital Marketing, Digital Media Strategy, Business Strategies, Digital Advertising, Growth Strategies, Social Media, Pay Per Click Advertising, Market Analysis
Beginner · Course · 1 - 4 Weeks
Universidad Austral
Skills you'll gain: Responsive Web Design, LESS, Bootstrap (Front-End Framework), Version Control, HTML and CSS, Web Design and Development, Web Development Tools, Cascading Style Sheets (CSS), Front-End Web Development, JavaScript Frameworks, Web Components, Javascript and jQuery, Application Deployment, Node.JS, Javascript
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Core Data (Software), JSON, Apple iOS, Data Persistence, Database Application, Mobile Development, Application Programming Interface (API), Data Access, Swift Programming, Model View Controller, Data Modeling, UI Components, Network Protocols, User Interface (UI), Debugging
Advanced · Course · 1 - 4 Weeks

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, OpenAI API, Generative AI Agents, Agentic systems, AI Workflows, Large Language Modeling, Hugging Face, OpenAI, ChatGPT, Embeddings, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Application Development, Program Development, Retrieval-Augmented Generation, Artificial Intelligence, Data Processing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: User Feedback, Customer Service, Customer experience strategy (CX), Customer Engagement, Customer Insights, Customer Analysis, Communication, Continuous Improvement Process, Case Studies, Culture Transformation, Focus Group, Data-Driven Decision-Making, Social Media
Beginner · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Customer Relationship Management, Customer Data Management, Big Data, Data Mining, Data-Driven Decision-Making, Predictive Analytics, Sales Management, Ggplot2, Customer Engagement, Data Visualization Software, Plot (Graphics), Data Modeling, R Programming, Customer Insights, Analytics, Customer experience strategy (CX), Data Science, Data Manipulation, Applied Machine Learning, Machine Learning Algorithms
Beginner · Specialization · 1 - 3 Months
Duke University
Skills you'll gain: Data Ethics, Exploratory Data Analysis, Data-Driven Decision-Making, Logistic Regression, Statistical Modeling, Web Scraping, Ggplot2, Model Evaluation, Data Visualization Software, Predictive Modeling, Tidyverse (R Package), Data Visualization, Data Analysis, Regression Analysis, Responsible AI, Data Transformation, R Programming, Data Science, Data Wrangling, Version Control
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Responsible AI, Azure Active Directory, Microsoft Azure, Data Lakes, Platform As A Service (PaaS), Cloud Computing, Data Integration, Relational Databases, AI Personalization, Cloud Applications, Cloud Development, Power BI, Performance Tuning, Microsoft Visual Studio, Model Deployment, Cloud Computing Architecture, Anomaly Detection, Cloud Platforms, Cloud Services, Cloud Management
Intermediate · Specialization · 3 - 6 Months

Starweaver
Skills you'll gain: Stakeholder Engagement, Business Analysis, Business Systems Analysis, Organizational Change, Stakeholder Communications, Requirements Analysis, Stakeholder Analysis, Change Management, Performance Analysis, Project Performance, Performance Measurement, Business Development, Process Improvement, Quality Management
Beginner · Course · 1 - 4 Weeks