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.

Universidad de los Andes
Skills you'll gain: Public Cloud, Big Data, Apache Hadoop, Apache Spark, Data Architecture, Cloud Services, Data Processing, Distributed Computing, Cloud Computing, Scalability, NoSQL, File Systems, Data Storage
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Prometheus (Software), Data Processing, Application Performance Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Ubuntu, Lightweight Directory Access Protocols, File Systems, Linux, Linux Commands, Bash (Scripting Language), Linux Servers, Firewall, Virtual Machines, Package and Software Management, Virtualization, Remote Access Systems, File Management, Operating System Administration, Unix Shell, Shell Script, OS Process Management, Containerization, Git (Version Control System)
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Data Visualization Software, Dashboard, Data Visualization, Interactive Data Visualization, Data Transformation, Tableau Software, Data Storytelling, Data Manipulation, Exploratory Data Analysis, Heat Maps, Scatter Plots, Data Analysis, Forecasting, Geospatial Mapping
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pain Management, Wound Care, Blood Collection, Vital Signs, Patient-centered Care, Health Assessment, Infection Control, Clinical Nursing, Patient Treatment, Patient Evaluation, Emergency Nursing, Patient Safety, Health Care, Healthcare Ethics, Patient Positioning, Patient Education And Counseling, Medical Surgical Nursing, Nursing, Healthcare Industry Knowledge, Clinical Nutrition
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Data Visualization Software, Data Visualization, Interactive Data Visualization, Visualization (Computer Graphics), JSON, Data Mapping, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, Jest (JavaScript Testing Framework), Test Case, Unit Testing, UI Components, Software Testing, Development Testing, Javascript, User Interface (UI), Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Performance Management, Prometheus (Software), System Monitoring, Grafana, Performance Tuning, Event Monitoring, Performance Testing, Performance Management, Server Administration, Web Analytics and SEO, Javascript
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Financial Statements, Working Capital, Financial Forecasting, Cost Management, Variance Analysis, Budgeting, Income Statement, Financial Acumen, Cash Flows, Capital Expenditure, Balance Sheet, Financial Analysis, Operating Expense
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hardware Design, Application Specific Integrated Circuits, Electronics Engineering, Engineering Design Process, Electronic Hardware, Electronics, Design, Technical Design, Semiconductors, Computer-Aided Design, Electrical and Computer Engineering, Electronic Systems, Electronic Components, Verification And Validation, Simulation and Simulation Software, Open Source Technology, Schematic Diagrams
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Responsible AI, Data Ethics, General Data Protection Regulation (GDPR), Ethical Standards And Conduct, Business Ethics, Information Privacy, Case Studies, Regulatory Compliance, Artificial Intelligence, Regulatory Affairs, Social Studies
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Design Thinking, Business Transformation, Process Design, Business Process, Human Centered Design, Business Solutions, Innovation, Creative Problem-Solving, Ideation, Creativity, Overcoming Obstacles, User Research, User Feedback, Empathy, Adaptability, Needs Assessment
Beginner · Course · 1 - 4 Weeks