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.

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

Skills you'll gain: Plotly, Dashboard, Data Analysis, Interactive Data Visualization, Jupyter, HTML and CSS, UI Components, Data Visualization Software, Real Time Data, Pandas (Python Package), Python Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unified Modeling Language, Visual Basic (Programming Language), Object Oriented Programming (OOP), Data Modeling, Program Development, Microsoft Development Tools, Computer Programming, .NET Framework, Data Import/Export, Software Engineering, Data Structures, File Management
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: ServiceNow, Problem Management, Incident Management, IT Service Management, Information Technology Infrastructure Library, Release Management, Service Management, Change Management, Information Technology Operations, Information Technology, Problem Solving, Root Cause Analysis, IT Management, Operational Efficiency, Automation, Workflow Management, Prioritization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Android Development, Mobile Development, Real Time Data, Data Integration, UI Components, User Interface (UI), Java Programming
Mixed · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: NoSQL, Big Data, File Systems, Apache Hadoop, Data Architecture, Distributed Computing, Scalability, Database Systems, Cloud Computing, Apache Spark, Public Cloud, Data Processing, Data Storage
Beginner · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Software Testing, Test Case, Javascript and jQuery, Browser Compatibility, Automation, Software Design Patterns, UI Components, Java
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Javascript, jQuery, Event-Driven Programming, Object Oriented Programming (OOP), JSON, Web Applications, Computer Programming, Web Development Tools, Debugging, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS)
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Correlation Analysis, Statistical Visualization, Data Visualization, Process Capability, Statistical Analysis, Systems Analysis, Probability & Statistics, Data Analysis, Quantitative Research, Run Chart, Box Plots, R (Software), Systems Of Measurement, Statistical Methods, Regression Analysis, R Programming, Scatter Plots, Statistical Hypothesis Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Angular, JavaScript Frameworks, Model View Controller, Javascript, Web Development Tools, Web Development, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Javascript, Programming Principles, Computer Programming, Web Development, Application Development
Beginner · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Supervised Learning, Tensorflow, Image Analysis, Artificial Neural Networks, Scikit Learn (Machine Learning Library), Python Programming, Machine Learning, Deep Learning, Unstructured Data, NumPy, Matplotlib, Natural Language Processing, Text Mining, Pandas (Python Package), Regression Analysis, Performance Tuning
Build toward a degree
Beginner · Course · 1 - 3 Months