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.

Skills you'll gain: Data Loss Prevention, Security Testing, Network Security, Cryptography, Security Controls, Cloud Security, Encryption, Data Security, Information Assurance, Cybersecurity, Identity and Access Management, Penetration Testing, Cloud Computing, Vulnerability Scanning, Authorization (Computing), Computer Security Incident Management, Information Privacy
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, LLM Application, Agentic systems, Tool Calling, LangChain, Artificial Intelligence, Prompt Engineering, Model Evaluation, Context Management, Scenario Testing, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Pay Per Click Advertising, Marketing Analytics, Search Engine Optimization, Web Analytics, Web Analytics and SEO, Online Advertising, Model Evaluation, Digital Marketing, Apache Hadoop, Data-Driven Decision-Making, Digital Advertising, Return On Investment, A/B Testing, Machine Learning Methods, Advertising, Analytics, Social Media Strategy, Marketing Automation, Predictive Modeling
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: HubSpot CRM, Team Building, Customer Relationship Management (CRM) Software, Team Management, Business Reporting, Marketing Automation, Email Marketing, Customer Data Management, Sales Enablement, Marketing, Customer Service
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Market Opportunities, New Product Development, Product Strategy, Competitive Analysis, Business Strategy, New Business Development, Market Analysis, Business Analysis, Product Development, Business Planning, Entrepreneurship, Innovation
Intermediate · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Stakeholder Engagement, Environmental Monitoring, Hydrology, Community Outreach, Water Resource Management, Environmental Engineering and Restoration, Water Resources, Cultural Diversity, Land Management, Policy Analysis, Social Sciences, Cultural Sensitivity, Environment and Resource Management, Environmental Laws, Environmental Resource Management, Environmental Engineering, Natural Resource Management, Case Studies, Water Quality, Climate Change Adaptation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Social Media Campaigns, Social Media Marketing, Social Media, Digital Media Strategy, Content Creation, Social Media Content, Search Engine Optimization, Social Media Strategy, Guest Relations, Hospitality, Web Analytics and SEO, Digital Marketing, Storytelling, Instagram, Key Performance Indicators (KPIs), Customer Engagement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Integrated Development Environments, Microsoft Visual Studio, AI Enablement, Test Driven Development (TDD), Software Development Tools, GitHub, Debugging, HTML and CSS, User Interface (UI), Cascading Style Sheets (CSS), Software Installation
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: PySpark, Apache Hadoop, Apache Spark, Big Data, Apache Hive, Data Lakes, Analytics, Data Processing, Data Import/Export, Data Integration, Linux Commands, File Systems, Text Mining, Data Transformation, Data Management, Distributed Computing, Command-Line Interface, Relational Databases, Java, C++ (Programming Language)
Intermediate · Specialization · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Retrieval-Augmented Generation, Embeddings, Vector Databases, Amazon Web Services, Agentic systems, Performance Tuning, Transfer Learning, Data Preprocessing
Beginner · Course · 1 - 4 Weeks

Howard University
Skills you'll gain: Spreadsheet Software, Microsoft Excel, Data Modeling, Business Modeling, Business Analysis, Product Assortment, Business Mathematics, Price Negotiation, Business Process, Financial Modeling, Process Optimization, Data-Driven Decision-Making, Business Strategy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Human Resources Management and Planning, Employee Coaching, Performance Metric, Artificial Intelligence, Change Management, Business Ethics, Return On Investment, Goal Setting
Beginner · Course · 1 - 4 Weeks