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.

Pearson
Skills you'll gain: Java, Transaction Processing, Java Programming, Data Access, Object Oriented Design, Dataflow, Database Management, Stored Procedure, SQL, Integration Testing, Application Development, Information Management, Object-Relational Mapping, Command-Line Interface, Application Deployment, Data Integrity, OS Process Management, Functional Design, Application Programming Interface (API), Mitigation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Application Development, UI Components
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Eclipse (Software), Object Oriented Design, Program Development, Computer Programming, Software Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Information Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Application Security, Vulnerability Assessments, Vulnerability Management, Secure Coding, Authorization (Computing), Java, Java Programming, Dependency Analysis, Docker (Software), Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Universidad de Palermo
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java, Software Design Patterns, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Functional Design, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, JSON, Restful API, Apache Maven, Application Programming Interface (API), Test Tools, Test Case, Test Planning, JUnit, Test Engineering, Security Testing, Test Automation, Authentications, Test Data, Scalability, Software Testing, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

EDUCBA
Skills you'll gain: Microservices, Spring Framework, Spring Boot, YAML, MongoDB, Application Deployment, NoSQL, Ajax, Software Architecture, Java, Development Environment, Scalability, Load Balancing, Data Integration, Restful API, Configuration Management, Application Performance Management, Continuous Deployment, Web Applications, Javascript and jQuery
Mixed · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Java Programming, Java, Test Automation, Scripting, Web Development Tools, Automation, Cascading Style Sheets (CSS), Debugging, Hypertext Markup Language (HTML)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Apache Maven, Java Platform Enterprise Edition (J2EE), Hibernate (Java), Unit Testing, Docker (Software), Software Design Patterns, Object-Relational Mapping, Data Access
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Cloud API, Application Programming Interface (API), Postman API Platform, Java Programming, Java, Mobile Development, Apache Maven, Web Development, Eclipse (Software), Software Design
Intermediate · Guided Project · Less Than 2 Hours