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.

L&T EduTech
Skills you'll gain: Oil and Gas, Petroleum Industry, Big Data, Data Management, Data Processing, Artificial Intelligence and Machine Learning (AI/ML), Process Engineering, Geostatistics, Anomaly Detection, Image Analysis, Process Control, Production Process, Energy and Utilities, Machine Learning, Automation, Physical Science, Natural Resource Management, 3D Modeling, Exploratory Data Analysis
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Tidyverse (R Package), Ggplot2, Data Wrangling, Exploratory Data Analysis, Plot (Graphics), R Programming, Data Import/Export, Predictive Modeling, Data Visualization, Data Visualization Software, Statistical Hypothesis Testing, Data Analysis, Data Manipulation, Data Modeling, Regression Analysis, Web Scraping, Data Presentation, Data Science, R (Software), Data Analysis Software
Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Scatter Plots, Plot (Graphics), Data Visualization, Data Visualization Software, Heat Maps, R Programming, Graphical Tools, Data Wrangling, Tidyverse (R Package), Graphics Software
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Serverless Computing, Security Strategy, Network Security, Firewall, Cloud Management, Infrastructure As A Service (IaaS), Distributed Denial-Of-Service (DDoS) Attacks, Cloud Computing, Cloud Security, Application Security, Internet Of Things, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: PySpark, Apache Spark, Data Management, Distributed Computing, Apache Hadoop, Data Processing, Data Analysis, Exploratory Data Analysis, Python Programming, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Docker (Software), Containerization, Cloud-Native Computing, Application Deployment, YAML, Devops Tools, Command-Line Interface, Google Cloud Platform, Web Applications, Cloud Infrastructure, Development Environment, Configuration Management, Nginx, CI/CD, Software Installation, MongoDB, Service Management, Infrastructure Architecture, Infrastructure Security
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Microservices, Spring Boot, Software Architecture, API Gateway, Spring Framework, Service Oriented Architecture, Cloud Computing Architecture, Load Balancing, Systems Architecture, Web Services, Cloud Services, Software Design Patterns, Scalability, Restful API
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Spring Framework, Cloud-Native Computing, Software Architecture, Microservices, Software Design Patterns, Event-Driven Programming, Java Programming, Restful API, Performance Tuning, MongoDB, Back-End Web Development, Application Programming Interface (API), Web Applications, Scalability, Real Time Data, Resilience, Integration Testing, Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ASP.NET, Restful API, .NET Framework, Web Services, JSON, Application Frameworks, Model View Controller, Web Applications, Back-End Web Development, Application Programming Interface (API), Extensible Markup Language (XML), Server Side, Application Security, Object-Relational Mapping
Intermediate · Course · 1 - 4 Weeks
University of Toronto
Skills you'll gain: Scientific Visualization, Data Visualization Software, Statistical Visualization, Interactive Data Visualization, Bioinformatics, Plot (Graphics), Ggplot2, R (Software), Dimensionality Reduction, Scatter Plots, R Programming, Network Analysis, Exploratory Data Analysis, Heat Maps, Molecular Biology, Design Thinking, Statistical Analysis
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, Routing Protocols, JavaScript Frameworks, Web Content Accessibility Guidelines, Front-End Web Development, UI Components, Performance Tuning, Debugging, Javascript, Software Design Patterns, Real Time Data, Authentications
Advanced · Course · 1 - 3 Months

Saïd Business School, University of Oxford
Skills you'll gain: Environmental Social And Corporate Governance (ESG), Corporate Sustainability, Stakeholder Engagement, Sustainable Business, Governance, Business Metrics, Sustainable Development, Sustainability Reporting, Business Reporting, Environmental Issue, Stakeholder Analysis, Performance Measurement, Business Ethics, Investments, Diversity and Inclusion, Climate Change Mitigation
Beginner · Course · 1 - 4 Weeks