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.

Board Infinity
Skills you'll gain: Restful API, Spring Framework, Spring Boot, Hibernate (Java), API Design, Development Testing, Verification And Validation, Authentications, Application Programming Interface (API), Object-Relational Mapping, Maintainability, Secure Coding, Data Persistence, Application Frameworks, Authorization (Computing), Application Design, YAML, Role-Based Access Control (RBAC), Endpoint Security, Business Logic
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Kotlin, Android Jetpack, Cross Platform Development, Mobile Development, Cloud Deployment, Android Development, Mobile Development Tools, Code Reusability, Back-End Web Development, UI Components, Server Side, Google Cloud Platform, Cloud Development, Frontend Integration, MongoDB, Interoperability, User Interface (UI), Web Applications, Systems Integration, Restful API
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SonarQube, Continuous Integration, Code Coverage, Vulnerability, Code Review, Security Testing, CI/CD, Secure Coding, Application Security, Continuous Delivery, Vulnerability Assessments, Software Quality Assurance, Maintainability, Vulnerability Management, Development Environment, Software Installation, Security Management, Data Integration, Quality Improvement, Analysis
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, Web Development Tools, User Interface (UI), Web Design and Development, HTML and CSS, User Interface and User Experience (UI/UX) Design, Front-End Web Development, Web Design, Cascading Style Sheets (CSS), JavaScript Frameworks, Javascript, Bootstrap (Front-End Framework), React.js, UI Components, Web Development, Hypertext Markup Language (HTML), Software Development Tools, Back-End Web Development, Semantic Web
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Javascript, Object Oriented Programming (OOP), Web Development, Scripting, Cascading Style Sheets (CSS), Data Validation, Prototyping, Programming Principles, Computational Logic, Code Reusability, Development Environment
Beginner · Course · 3 - 6 Months

Skills you'll gain: Exploitation techniques, Penetration Testing, Secure Coding, Web Applications, Full-Stack Web Development, Vulnerability Assessments, Application Security, Angular, Ajax, Javascript
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Web Applications, React.js, Javascript and jQuery, Javascript, Cascading Style Sheets (CSS)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Test Automation, Test Tools, Test Data, Test Case, Test Script Development, Software Testing, Test Execution Engine, Java, Automation, Code Reusability, Extensible Languages and XML
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Relational Databases, Database Development, Data Management, Database Management, Database Design, SQL, Database Software, Databases, Database Administration, Database Application, Query Languages, Data Entry, Data Integrity, Data Manipulation
Intermediate · Guided Project · Less Than 2 Hours

Pearson
Skills you'll gain: PySpark, Apache Hadoop, Apache Spark, Big Data, Apache Hive, Data Lakes, Analytics, Data Pipelines, Data Processing, Data Import/Export, Linux Commands, Linux, File Systems, Data Management, Distributed Computing, Command-Line Interface, Relational Databases, Software Installation, Java, C++ (Programming Language)
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Responsive Web Design, OpenAI API, HTML and CSS, Cascading Style Sheets (CSS), Javascript, LLM Application, Application Development, User Interface (UI) Design, Web Design and Development, Application Programming Interface (API), OpenAI, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Software Design Patterns, Object Oriented Design, Object Oriented Programming (OOP), Javascript, Software Design, Maintainability, Application Development, Event-Driven Programming, Context Management
Advanced · Course · 1 - 3 Months