Java Data Structures courses can help you learn about arrays, linked lists, stacks, queues, and hash tables. You can build skills in algorithm efficiency, data manipulation, and implementing search and sort techniques. Many courses introduce tools like Eclipse or IntelliJ IDEA, which support coding practices and debugging, allowing you to apply your knowledge in real coding environments. You'll also explore concepts such as recursion and tree structures, enhancing your ability to tackle complex programming challenges.

University of Washington
Skills you'll gain: Responsive Web Design, Web Design, GitHub, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Web Design and Development, Usability, User Interface and User Experience (UI/UX) Design, User Experience, Javascript, Web Content Accessibility Guidelines, Browser Compatibility, User Story, Front-End Web Development, Web Development, Mobile Development, Semantic Web, Git (Version Control System)
Beginner · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Prometheus (Software), Data Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Fraud detection, Sarbanes Oxley Act (SOX) Compliance, Financial Statement Analysis, Financial Auditing, Internal Controls, Investigation, Compliance Management, Financial Analysis, Anomaly Detection, Risk Control, Business Ethics, Case Studies, Accounting
Mixed · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Property and Real Estate, Real Estate, Fraud detection, Advanced Analytics, Real Estate Transactions, Predictive Analytics, Marketing Analytics, Responsible AI, Market Trend, Property Management, Marketing Strategies, Tensorflow, Lead Generation, Predictive Modeling, Artificial Intelligence, Business Valuation, Automation, Machine Learning, Internet Of Things, Risk Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Network Security, Data Security, Key Management, Encryption, Data Integrity, Authentications, Authorization (Computing), Transaction Processing, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Mathematical Software, Scripting Languages, Scripting, Statistical Analysis, Software Installation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Test Automation, JUnit, Object Oriented Programming (OOP), Integration Testing, Browser Compatibility
Intermediate · Course · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: LLM Application, Tool Calling, Retrieval-Augmented Generation, Large Language Modeling, Generative AI Agents, AI Workflows, Context Management, Prompt Engineering, Agentic systems, Data Persistence, System Design and Implementation
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Systems Analysis, Database Design, Business Process Modeling, Process Flow Diagrams, System Testing, Process Mapping, Functional Requirement, Application Deployment, Process Analysis, Business Analysis, Requirements Elicitation, Requirements Analysis, Development Testing, Data Management, System Design and Implementation, Software Design Documents, Stakeholder Management, Project Management, Data Visualization, Stakeholder Engagement
Advanced · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Quantitative Research, Marketing Analytics, Market Analysis, Market Research, Exploratory Data Analysis, Strategic Marketing, Forecasting, Strategic Decision-Making, Data Analysis, Predictive Modeling, Customer Analysis, Statistical Modeling, Statistical Analysis, Correlation Analysis, Regression Analysis, Unsupervised Learning, Variance Analysis
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Systems Architecture, Software Design, Software Architecture, Verification And Validation, System Design and Implementation, Code Review, Real Time Data, Performance Testing, Linux, Performance Tuning, Computer Vision, Debugging
Advanced · Course · 1 - 3 Months

Skills you'll gain: Market Research, Market Analysis, Marketing, Research Methodologies, Research, Business Research, Research Reports, Research Design, Competitive Analysis, Market Intelligence, Quantitative Research, Consumer Behaviour, Global Marketing, Market Trend, Surveys, Customer Analysis, Analytical Skills, Case Studies, Report Writing, Business Strategy
Beginner · Specialization · 1 - 3 Months