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: Relational Databases, Power BI, Microsoft Azure, Database Management, NoSQL, Dashboard, Cloud Deployment, Dashboard Creation, Data Integration, Data Visualization, Data Visualization Software, SQL, Database Management Systems, Data Storage, Data Modeling, Cloud Storage, Extract, Transform, Load, Data Processing, Infrastructure As A Service (IaaS), Platform As A Service (PaaS)
★ 4.7 (27) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Energy and Utilities, Mathematical Modeling, Predictive Analytics, Gemini, Laboratory Experience, Google Gemini, Model Optimization, Predictive Modeling, Data-Driven Decision-Making, Forecasting, Analytics, 3D Modeling, Simulations, Sustainable Technologies, Data Visualization, AI Integrations, Search Engine Optimization
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Visualization, Data Visualization Software, Statistical Visualization, Data Storytelling, Data Manipulation, Data Presentation, Dashboard Creation, Statistical Reporting, Data Wrangling, Dashboard, Data Analysis, Data Cleansing, Plot (Graphics), R (Software), R Programming, Tidyverse (R Package), Data Preprocessing, Data Transformation, Graphic and Visual Design, Data Import/Export
★ 5 (38) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Redis, Data Store, Key Management, Data Structures, Data Storage, Data Management, Data Access, Performance Tuning, Memory Management
★ 4.9 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sales, Sales Strategy, Consultative Selling, Selling Techniques, Account Strategy, Customer Relationship Building, Business Communication, Consultative Approaches, Relationship Building, Sales Pipelines, General Sales Practices, Overcoming Objections, Relationship Management, Sales Process, Closing (Sales), Communication Strategies, Proposal Writing, Digital Transformation, AI Personalization, Personalized Campaigns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Linux, OS Process Management, Command-Line Interface, Unix Commands, File Systems, User Accounts, Bash (Scripting Language), Shell Script, grep, Linux Administration, Unix Shell, File Management, Remote Access Systems, Operating Systems, Scripting, DevOps
Beginner · Course · 3 - 6 Months

Skills you'll gain: Data Structures, Algorithms, Python Programming, Programming Principles, Computer Programming, Computational Thinking, Data Processing, Data Analysis Expressions (DAX), Data Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Authentications, OAuth, Back-End Web Development, Event-Driven Programming, Database Management, Object-Relational Mapping, Databases, Authorization (Computing), Redis, Secure Coding, Application Programming Interface (API), Restful API, Data Modeling, API Design, Email Automation
Intermediate · Course · 3 - 6 Months
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), API Design, Cloud API, Restful API, Server Side, Web Development, Servers, JSON, Software Documentation, Web Applications, Javascript, Web Services, Technical Documentation, Application Security
★ 4.5 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Analytics, Marketing Analytics, Data-Driven Marketing, Web Analytics, Marketing Effectiveness, Campaign Management, Marketing Strategies, Analytics, Target Audience, Trend Analysis, Strategic Marketing, Digital Marketing, Performance Reporting, Performance Analysis, Business Reporting, Time Series Analysis and Forecasting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Spring Framework, JUnit, Spring Boot, Unit Testing, Integration Testing, Data Pipelines, Event-Driven Programming, Public Key Infrastructure, Encryption, Distributed Computing
Intermediate · Course · 3 - 6 Months

Simplilearn
Skills you'll gain: User Story, Agile Software Development, Agile Project Management, Backlogs, Scaled Agile Framework, Agile Methodology, Organizational Change, Sprint Planning, Change Management, Team Building, Team Management, Scalability, Kanban Principles, Project Management, Project Estimation, Estimation
★ 4.8 (11) · Beginner · Course · 1 - 4 Weeks