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: Hardware Troubleshooting, Computer Hardware, Hardware Architecture, Software Installation, Microarchitecture, Computer Architecture, Desktop Support, IT Infrastructure, Data Storage Technologies, System Configuration, Data Storage, Information Technology, Memory Management
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unified Modeling Language, JUnit, Software Testing, Java, Java Programming, Unit Testing, Software Design, Software Development, Test Driven Development (TDD), Diagram Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Apache Kafka, Data Pipelines, Google Cloud Platform, Java, Cloud Platforms, Cloud API, Java Programming, Network Analysis
Beginner · Project · Less Than 2 Hours

Skills you'll gain: C and C++, Object Oriented Programming (OOP), C++ (Programming Language), Data Validation, Data Integrity, Computer Programming, Computer Science
Intermediate · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Professional Networking, Positivity, Design Thinking, Decision Making, Rapport Building, Relationship Building, Professional Development, Interviewing Skills, Optimism, Job Evaluation, Self-Awareness, Negotiation, Personal Development, Goal Setting
Beginner · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Model View Controller, iOS Development, Apple iOS, Apple Xcode, Swift Programming, User Interface (UI), User Interface (UI) Design, Mobile Development, UI Components, Application Frameworks, Application Development, Software Architecture, Knowledge of Apple Hardware, Computer Programming, Storyboarding
Mixed · Course · 1 - 3 Months

Skills you'll gain: HVAC, Building Services Engineering, Thermal Management, Mechanical Engineering, Engineering, System Requirements, Engineering Calculations, Energy and Utilities, Estimation, Environmental Issue
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Controls, Cybersecurity, Encryption, Cyber Attacks, Information Systems Security, Cryptographic Protocols, Threat Management, Vulnerability Assessments, Vulnerability, Cyber Security Assessment, Vulnerability Scanning, Threat Detection, Cloud Security, Key Management, Asset Protection, Security Awareness, Gap Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Work Breakdown Structure, Calendar Management, Timelines, Project Schedules, Scheduling, Project Planning, Project Management Software, Project Management, Resource Management, Relationship Management, Dependency Analysis, Data Visualization, Data Import/Export
Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Automation, Google Workspace, Google Sheets, Stakeholder Communications, Communication Planning, Scripting, Gmail, Stakeholder Management, Project Schedules, Project Management, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization Software, Data Visualization, Interactive Data Visualization, Scatter Plots, Statistical Visualization, Histogram, Graphic and Visual Design, R Programming, Graphic Design, Graphical Tools, R (Software), Data Mapping, Graphing, Spatial Data Analysis, Geospatial Mapping
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Unit Testing, Server Side, Javascript, Debugging, Back-End Web Development, File Systems, File I/O, Software Testing, Web Applications, Event-Driven Programming, Code Reusability
Intermediate · Course · 1 - 3 Months