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.

LearnQuest
Skills you'll gain: Data Analysis, Analytics, Statistical Analysis, Data Mining, Spreadsheet Software, Exploratory Data Analysis, Descriptive Analytics, Quantitative Research, Data Processing, Data Cleansing, Data Collection, Statistics, R (Software), Predictive Analytics, Query Languages, Data Visualization, Data Visualization Software, SQL
Beginner · Course · 1 - 3 Months

University of Glasgow
Skills you'll gain: Data-Driven Decision-Making, Business Leadership, Leadership Studies, Organizational Leadership, Leadership, Strategic Leadership, Organizational Structure, Leadership and Management, Leadership Development, Agile Product Development, Social Sciences, Ancient History
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Storyboarding, Animations, Storytelling, Motion Graphics, Multimedia, Musical Composition, Adobe After Effects, Photo/Video Production and Technology, Video Editing, Apple software proficiency, Timelines, Layout Design, Color Theory, Design
Beginner · Specialization · 1 - 3 Months

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

Edureka
Skills you'll gain: Data Storytelling, SQL, Data Engineering, Data Presentation, Key Performance Indicators (KPIs), Star Schema, Dashboard, Data Modeling, Data Quality, Business Analytics, Database Design, Data Mart, Business Intelligence, Extract, Transform, Load, Analytics, YAML, Data Pipelines, Data Transformation, Performance Tuning, Analysis
Intermediate · Specialization · 1 - 3 Months

JetBrains
Skills you'll gain: File I/O, Data Structures, Python Programming, Programming Principles, Computer Programming, Scripting, Data Processing, Code Review, NumPy, Development Environment, Integrated Development Environments, Computational Thinking, Software Installation, Numerical Analysis
Beginner · Course · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Predictive Analytics, Predictive Modeling, Model Evaluation, R Programming, Preventative Care, Health Informatics, Statistical Modeling, Sample Size Determination, Statistical Inference, Regression Analysis, Precision Medicine, Supervised Learning, Data Preprocessing
Intermediate · Course · 1 - 3 Months

EC-Council
Skills you'll gain: Node.JS, MongoDB, Angular, Full-Stack Web Development, JavaScript Frameworks, Restful API, Web Applications, Web Development, NoSQL, Front-End Web Development, Application Security, Web Development Tools, Web Servers, Application Programming Interface (API), Javascript, Database Systems, Back-End Web Development
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Semantic Web, Web Content, Information Architecture, Web Design and Development, Web Development, Front-End Web Development
Beginner · Guided Project · Less Than 2 Hours

Xi'an Jiaotong University
Skills you'll gain: Infectious Diseases, Infection Control, Epidemiology, Public Health and Disease Prevention, Preventative Care, Public Health, Hand Hygiene, Personal protective equipment, Diagnostic Tests, Intensive Care Medicine, Patient Treatment, Diagnostic Radiology
Beginner · Course · 1 - 3 Months

Skills you'll gain: QuickBooks (Accounting Software), Vendor Management, Inventory and Warehousing, Accounting Software, Customer Data Management, Financial Analysis, Billing & Invoicing, Sales Management, Financial Reporting, Expense Management, Payroll, Accounts Payable, Bookkeeping, Cash Flows, Accounts Receivable
Beginner · Course · 1 - 3 Months

Skills you'll gain: Software Development Life Cycle, z/OS, COBOL (Programming Language), Unit Testing, Systems Analysis, Systems Development, Pseudocode, Agile Methodology, Software Development, Software Design, Systems Architecture, Mainframe Computing, Programming Principles, Scrum (Software Development), Software Testing
Beginner · Course · 1 - 3 Months