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.

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

Skills you'll gain: Linux Commands, Linux, OS Process Management, Command-Line Interface, Unix Commands, File Systems, User Accounts, Bash (Scripting Language), Shell Script, grep, Linux Administration, Unix Shell, File Management, Remote Access Systems, Operating Systems, Scripting, DevOps
Beginner · Course · 3 - 6 Months

Simplilearn
Skills you'll gain: Search Engine Marketing, Google Ads, Pay Per Click Advertising, Online Advertising, Search Engine Optimization, Digital Marketing Campaigns, Marketing, Digital Marketing, Digital Advertising, Paid media, Campaign Management, Marketing Automation, Advertising Campaigns, Google Analytics, Advertising, Media Buying, Target Audience, Bidding
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization, Interactive Data Visualization, Statistical Visualization, Data Visualization Software, Exploratory Data Analysis, Data Presentation, R (Software), Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Graphing, Histogram, Data Wrangling, Data Manipulation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Scalability, Authentications, JSON, Authorization (Computing), Web Development Tools, Web Applications, Web Development, Server Side, Secure Coding, JavaScript Frameworks, Back-End Web Development, Application Frameworks, Javascript, Restful API, Development Environment, Event-Driven Programming, Operating Systems, Email Automation, Integrated Development Environments
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Unit Testing, Test Case, Development Testing, Test Tools, React.js, API Testing, Software Testing, Web Development Tools, Javascript
Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Spring Framework, Cloud-Native Computing, Software Architecture, Microservices, Spring Boot, Cloud Applications, Software Design Patterns, Event-Driven Programming, Java Programming, Restful API, Performance Tuning, MongoDB, API Design, Application Programming Interface (API), Dataflow, Web Applications, Resilience, Integration Testing, Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Tableau Software, Dashboard, Data Visualization Software, Data Visualization, R Programming, Alteryx, R (Software), Statistical Programming, Data Presentation, Statistical Visualization, Interactive Data Visualization, Data Cleansing, Plot (Graphics), Data Storytelling, Dashboard Creation, Data Analysis Software, Statistical Analysis, Data Wrangling, Workflow Management, Data Analysis
Intermediate · Specialization · 3 - 6 Months

JetBrains
Skills you'll gain: Vibe coding, Generative AI Agents, Prompt Engineering, Game Design, Code Review, 3D Assets, Animation and Game Design, 3D Modeling, Integrated Development Environments, Artificial Intelligence, Generative AI, Project Planning, Javascript, Software Development, Product Development, Web Development, Product Design, Animations, Visual Design, Interactive Data Visualization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Technical Analysis, Market Trend, Trend Analysis, Financial Market, Market Data, Portfolio Risk, Financial Trading, Portfolio Management, Risk Management, Financial Forecasting, Market Dynamics, Real Time Data, Financial Analysis, Market Analysis, Investment Management, Risk Analysis, Graphing, Verification And Validation, Probability & Statistics
Beginner · Specialization · 3 - 6 Months

Niel Asher Education
Skills you'll gain: Rehabilitation, Patient Evaluation, Physical Therapy, Patient Education And Counseling, Clinical Assessment, Exercise Therapy, Patient Education and Support, Athletic Training, Respiration, Cognitive Behavioral Therapy, Meditation & Breathwork, Patient Communication, Mindfulness, Mental Health Therapies
Advanced · Course · 1 - 3 Months

University of California, Santa Barbara
Skills you'll gain: Legal Risk, Business Ethics, Business Risk Management, Law, Regulation, and Compliance, Court Systems, Commercial Laws, Risk Management, Arbitration, Vendor Contracts, Regulatory Compliance, Ethical Standards And Conduct, Personal Injury Law, Contract Management, Regulation and Legal Compliance, Mediation, Litigation and Civil Justice, Conflict Management, Public Policies
Beginner · Course · 1 - 4 Weeks