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.

Skills you'll gain: Angular, Command-Line Interface, Frontend Performance, Data Sharing
Beginner · Course · 3 - 6 Months

Skills you'll gain: ASP.NET, Restful API, Web Development, Object-Relational Mapping, Web Applications, User Accounts, Data Integrity, Single Sign-On (SSO), .NET Framework, API Design, Application Programming Interface (API), Database Application, Authentications, Back-End Web Development, Performance Tuning, Authorization (Computing), Data Management, Relational Databases, Identity and Access Management, Model View Controller
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MySQL, Java, Data Access, Data Store, Database Application, Database Development, Java Programming, Databases, Software Development, Data Storage, Program Development, Computer Programming
Advanced · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Backlogs, Agile Project Management, Agile Software Development, Agile Product Development, Agile Methodology, Team Building, Team Oriented, Product Management, Project Management, Team Management, Project Management Life Cycle, Cross-Functional Collaboration, Case Studies, Meeting Facilitation, Prioritization, Continuous Improvement Process, Product Development, Discussion Facilitation, Communication
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Software Design, Programming Principles, Program Development, Code Reusability, AI Personalization, Data Integration, Databases, Computer Programming, Object Oriented Programming (OOP), User Interface (UI), Data Mapping, Algorithms, Java Programming, Java, Data Structures, Data Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Test Automation, Test Case, Software Development, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Dataflow, Real Time Data, Event-Driven Programming, Data Pipelines, Data Processing, Distributed Computing, Scalability, Systems Architecture, Software Architecture, DevOps, Docker (Software), Data Persistence, Configuration Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PyTorch (Machine Learning Library), Model Evaluation, Deep Learning, Model Training, Artificial Intelligence and Machine Learning (AI/ML), Fine-tuning, Machine Learning, Machine Learning Algorithms, Artificial Neural Networks, Artificial Intelligence, Model Optimization, Data Preprocessing, Regression Analysis, Software Installation, System Configuration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Terraform, Infrastructure as Code (IaC), Code Reusability, IT Automation, Cloud Infrastructure, Infrastructure Architecture, Ansible, AWS CloudFormation, DevOps, Automation, IBM Cloud, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java, Java Programming, Program Development, Application Development, Programming Principles, Data Storage, Data Entry, Computer Programming, Algorithms
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Browser Compatibility, Java Programming, Java, Test Tools, Software Testing, Javascript, Eclipse (Software), Apache Maven, Development Environment, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Software Installation, System Configuration
Intermediate · Course · 3 - 6 Months

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Event-Driven Programming, Distributed Computing, Java Programming, Dataflow, Java, OS Process Management, Scala Programming, Data Structures, System Programming, Programming Principles, Servers, Application Frameworks, Computer Programming, Algorithms, Performance Tuning, Computer Science, Functional Design
Intermediate · Specialization · 3 - 6 Months