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: 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: Embedded Systems, Internet Of Things, Control Systems, Electronic Systems, Electronics, Maintenance, Repair, and Facility Services, Automation, Integrated Development Environments, Environmental Monitoring, System Monitoring, Infrastructure Architecture, Communication Systems, Real Time Data, Peripheral Devices
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Clinical Nursing, Basic Nursing Skills, Patient Observation, Patient-centered Care, Nursing Care, Infection Control, Patient Evaluation, Patient Communication, Emergency Response, Nursing Process, Clinical Assessment, Medical Emergency, Nursing, Nursing Practices, Health Assessment, Communication, Medical Equipment and Technology, Health Care, Healthcare Ethics, Anatomy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Microsoft Windows, Mac OS, Command-Line Interface, Linux, Operating Systems, Software Installation, System Configuration, Control Panels, General Networking, Cloud Management, Computer Networking, File Systems, File Management, User Accounts
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Hardware, Hardware Architecture, Peripheral Devices, Networking Hardware, Hardware Troubleshooting, USB, System Configuration, Desktop Support, Computer Networking, Computer Architecture, Data Storage Technologies, General Networking
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Apache Maven, Model View Controller, Unit Testing, Spring Boot, Restful API, Software Testing, Object-Relational Mapping, Java, Full-Stack Web Development, Back-End Web Development, Integration Testing, Web Applications, Front-End Web Development, Data Store, Application Security
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, Record Keeping
Intermediate · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: Java, Object Oriented Programming (OOP), Data Structures, Computer Programming, User Interface (UI), Algorithms, Computational Thinking, Debugging
Beginner · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Performance Tuning, Hibernate (Java), JUnit
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Malware Protection, Network Security, Information Systems Security, Security Controls, Cybersecurity, Data Security, Mobile Security, Computer Security Awareness Training, Wireless Networks, Authentications, Human Factors (Security), Threat Detection, Encryption, User Accounts
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Information Technology Operations, Disaster Recovery, Document Management, Incident Response, Information Technology, Change Control, Safety and Security, Technical Communication, Linux, Microsoft Windows, Personally Identifiable Information, Remote Access Systems, Scripting, Electrical Safety, Artificial Intelligence, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Security, Microsoft Windows, Problem Management, System Support, Technical Support and Services, Security Management, Android (Operating System), Computer Security Incident Management, Application Security, Debugging, Threat Management, Apple iOS, Application Performance Management, Performance Tuning
Intermediate · Course · 1 - 4 Weeks