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: PL/SQL, Oracle Databases, Stored Procedure, SQL, Data Persistence, Database Development, Database Management Systems, Web Services, Data Storage Technologies, Authorization (Computing), Debugging, File Management
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Stress Management, Mindfulness, Emotional Intelligence, Personal Development, Resilience, Self-Awareness, Persistence, Mental Health, Goal Setting, Adaptability, Journals, Accountability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: GraphQL, API Design, Restful API, Application Programming Interface (API), Cloud API, ASP.NET, Authentications, Data Validation, .NET Framework, Authorization (Computing), C# (Programming Language), Serverless Computing, Software Documentation, Microsoft Azure, Software Architecture, Verification And Validation, Application Deployment, Debugging
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Cloud Deployment, Devops Tools, Cloud Applications, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Deepseek, LangChain, Generative AI, LLM Application, Tool Calling, AI Workflows, AI Orchestration, Prompt Engineering, Automation, Data Integration, Cross Platform Development, Systems Integration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unsupervised Learning, Customer Analysis, Applied Machine Learning, R Programming, Data Preprocessing, Statistical Machine Learning, Machine Learning, Feature Engineering, Data Analysis
Mixed · Course · 1 - 4 Weeks

Koç University
Skills you'll gain: Numerical Analysis, Calculus, Applied Mathematics, Integral Calculus, Mathematical Software, Mathematics Education, Advanced Mathematics, Mathematical Theory & Analysis, Derivatives
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Target Audience, Verbal Communication Skills, Crisis Management, Brand Strategy, Brand Awareness, Communication, Trustworthiness, Branding, Public Speaking, Brand Management, Storytelling, Professional Development, Personal Attributes, Social Media Content, Technology Strategies, Digital Media Strategy
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Performance Tuning, UI Components, Program Development, Object Oriented Programming (OOP), System Configuration, C# (Programming Language), Data Structures, Scripting
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Assessments, Vulnerability Management, Vulnerability Scanning, Cyber Security Assessment, Hardening, Threat Management, Patch Management, Cyber Risk, Continuous Monitoring, Threat Detection, Cyber Threat Hunting, Application Security, Security Controls, Cyber Attacks, Cyber Security Policies, Cyber Engineering, Network Security, Cyber Security Strategy, Network Engineering, Web Applications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud-Native Computing, Application Deployment, Cloud Applications, Cloud Development, Cloud Deployment, Infrastructure as Code (IaC), Google Cloud Platform, Application Performance Management, Docker (Software), Containerization, Performance Tuning, Debugging, Node.JS
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apple iOS, Swift Programming, Interactive Data Visualization, User Interface (UI), Data Sharing, Application Programming Interface (API), User Interface (UI) Design, Data Modeling, Real Time Data
Intermediate · Course · 3 - 6 Months