Java courses can help you learn object-oriented programming, data structures, exception handling, and multithreading concepts. 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.

Northeastern University
Skills you'll gain: Web Design and Development, Responsive Web Design, HTML and CSS, Web Content Accessibility Guidelines, Front-End Web Development, Cascading Style Sheets (CSS), Web Development Tools, React.js, User Interface (UI), Javascript, Web Servers, Semantic Web, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Secure Coding, Security Testing, Open Web Application Security Project (OWASP), Vulnerability, Software Testing, Computer Security, Vulnerability Management, Data Security, Security Strategy, Unit Testing, Human Factors (Security), Application Design, Information Privacy, Computer Programming, Python Programming, Node.JS, Javascript, Design Strategies, JavaScript Frameworks
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, Build Tools, Software Configuration Management, Continuous Integration, Integrated Development Environments, Java Programming, Dependency Analysis, Automation, Java, Product Lifecycle Management, Software Versioning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Web Design and Development, Front-End Web Development, Animations, Javascript, Application Deployment, Interactive Design, Web Content Accessibility Guidelines, User Interface (UI), Usability, Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Big Data, Application Deployment, Social Network Analysis, Data Processing, Distributed Computing, Java, Text Mining, Graph Theory, File Systems
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Mapping, IBM WebSphere MQ, Middleware, Business Process Automation, Process Driven Development, Data Integration, Scenario Testing, File Transfer Protocol (FTP), Test Case, Development Testing, Data Validation, Java Programming, System Configuration, Debugging, File Management
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: React.js, UI Components, User Interface (UI), Web Applications, User Accounts, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Secure Coding, Javascript, Authorization (Computing), Authentications, Data Validation
Intermediate · Course · 1 - 4 Weeks

CertNexus
Skills you'll gain: Application Security, Human Factors (Security), Secure Coding, Open Web Application Security Project (OWASP), Vulnerability, Computer Security, Vulnerability Management, Vulnerability Assessments, Data Security, Security Strategy, Security Controls, Cyber Security Strategy, Application Design, Computer Programming, Design, Python Programming, Javascript, Design Strategies, JavaScript Frameworks, Node.JS
Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Ajax, JavaScript Frameworks, Web Applications, Javascript, Web Development Tools, Model View Controller, Event-Driven Programming, UI Components, HTML and CSS, Data Mapping, User Interface (UI), Routing Protocols, Restful API
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Metadata Management, Extract, Transform, Load, Data Integration, Data Pipelines, Data Processing, Java, Data Import/Export, Data Transformation, Software Documentation, Data Storage Technologies, Debugging
Mixed · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Classification And Regression Tree (CART), Decision Tree Learning, Classification Algorithms, Java, Java Programming, Machine Learning Algorithms, Supervised Learning, Algorithms, Machine Learning, Data Structures, Software Engineering
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Random Forest Algorithm, Decision Tree Learning, Data Preprocessing, Applied Machine Learning, Jupyter, Classification Algorithms, Java, Sampling (Statistics), Feature Engineering, Model Evaluation, Supervised Learning, Predictive Modeling, Machine Learning, Learning Styles, Program Evaluation, Program Implementation
Intermediate · Course · 1 - 4 Weeks