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.

University of Colorado Boulder
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Software Documentation, Maintainability, Programming Principles, Software Design, Python Programming
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

Board Infinity
Skills you'll gain: Investment Banking, Financial Services, Banking Services, Insurance, Financial Inclusion, Business Ethics, Banking, Insurance Policies, Underwriting, Financial Analysis, Financial Market, Financial Management, Credit Risk, Retail Banking, Financial Regulation, Bank Regulations, Risk Analysis, Financial Planning, Mobile Banking, Portfolio Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Firefly, Prompt Engineering, Adobe Express, Collaborative Software, Adobe Creative Cloud, Generative AI, Adobe Photoshop, Generative AI Agents, AI Personalization, Content Creation, Data Import/Export, Responsible AI, Data Ethics, Creative Design, Storytelling, Brand Strategy, Branding
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Web Design, HTML and CSS, Web Content Accessibility Guidelines, User Interface (UI), Hypertext Markup Language (HTML), Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Usability, Web Applications, Semantic Web, Data Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Spatial Data Analysis, Spatial Analysis, Geographic Information Systems, Geospatial Mapping, Data Presentation, Exploratory Data Analysis, Vector Databases, Data Mapping, Data Access
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Visualization Software, Data Visualization, Statistical Visualization, Ggplot2, Plot (Graphics), R Programming, Scatter Plots, Data Collection, Data Analysis, Data Manipulation, Data Import/Export, Regression Analysis, Data Preprocessing, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Data Integration, SQL Server Integration Services (SSIS), Data Cleansing, Data Pipelines, Data Quality, Data Migration, Database Management, Data Transformation, File Management, Data Manipulation, Data Processing, Metadata Management, JSON, Extensible Markup Language (XML), Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Test Automation, JUnit, Object Oriented Programming (OOP), Integration Testing, Browser Compatibility
Intermediate · Course · 3 - 6 Months

Skills you'll gain: React.js, JavaScript Frameworks, UI Components, Javascript, Front-End Web Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours

NIIT
Skills you'll gain: React.js, Front-End Web Development, Systems Development Life Cycle, Application Development, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe InDesign, Layout Design, Color Theory, Multimedia, Typography, Graphic Design, Design, Graphic and Visual Design Software, Design Elements And Principles, Style Guides, Document Management, Digital Publishing
Beginner · Course · 1 - 3 Months