Java for Android courses can help you learn app development, user interface design, and mobile programming principles. You can build skills in working with APIs, managing databases, and implementing responsive layouts. Many courses introduce tools like Android Studio and Gradle, that support coding, testing, and deploying your applications effectively.

University of California San Diego
Skills you'll gain: Graph Theory, Network Model, Database Design, Big Data, Graphing, Apache Spark, Network Analysis, Analytics, Data Store, Data Management, Query Languages, Computing Platforms, Scalability, Distributed Computing, Algorithms
★ 4.3 (1.3K) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Star Schema, Data Modeling, Database Design, Data Warehousing, Dashboard, Business Reporting, Dashboard Creation, Business Intelligence, Business Process, Business Intelligence Software, Self Service Technologies, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Feature Engineering, Statistical Methods, Data Preprocessing, Statistical Inference, Statistical Hypothesis Testing, Data Processing, Applied Machine Learning, Data Access, Statistics, Statistical Analysis, Data Analysis, Data Cleansing, Data Manipulation, Data Science, Data Wrangling, Machine Learning, Probability & Statistics, Data Import/Export, Data Transformation
★ 4.6 (2.6K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Anthropic Claude, Vibe coding, Prompt Patterns, Model Context Protocol, LLM Application, Context Management, Debugging, ChatGPT, Generative AI, Large Language Modeling, Multimodal Prompts, Cloud API, AI literacy, Token Optimization, Context Engineering, AI Workflows, Artificial Intelligence, Web Development Tools, Software Development
★ 4.4 (246) · Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Descriptive Statistics, Linear Algebra, Exploratory Data Analysis, Data-Driven Decision-Making, Data Analysis, Bayesian Statistics, Artificial Intelligence, Probability, Regression Analysis, Calculus, Mathematical Software, Advanced Mathematics, Applied Mathematics, Probability Distribution, Mathematical Modeling, Model Optimization, Integral Calculus, Algebra, Machine Learning Algorithms, Dimensionality Reduction
★ 4.9 (10) · Beginner · Course · 1 - 3 Months
University of California, Irvine
Skills you'll gain: Business Writing, Stakeholder Engagement, Negotiation, Project Planning, Creative Thinking, Project Performance, Business Correspondence, Stakeholder Communications, Concision, Project Management, Communication Planning, Project Risk Management, Planning, Editing, Performance Measurement, Teamwork, Risk Management, Emotional Intelligence, Relationship Building, Communication
★ 4.7 (38K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: MLOps (Machine Learning Operations), Package and Software Management, Unit Testing, Code Reusability, Testability, Software Design, Python Programming, AI Workflows, Test Script Development, Test Case, Test Tools
Intermediate · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Closing (Sales), Cold Calling, Customer Analysis, Selling Techniques, Sales Process, Target Market, Marketing, Market Analysis, General Sales Practices, Marketing Strategy and Techniques, Marketing Strategies, Competitive Analysis, Marketing Planning, Business Marketing, Strategic Marketing, Outbound Calls, Market Opportunities, Sales, Entrepreneurship, Digital Marketing
★ 4.4 (159) · Intermediate · Course · 1 - 3 Months

Campus BBVA
Skills you'll gain: Computer Security Incident Management, Cybersecurity, Cyber Attacks, Incident Response, Cyber Security Strategy, Security Management, Crisis Management, Incident Management, Cyber Threat Intelligence, Security Information and Event Management (SIEM), Threat Management, Data Security, Fraud detection, Intrusion Detection and Prevention, Security Controls, Network Security, Security Awareness, Threat Detection, Continuous Monitoring, Email Security
★ 4.7 (192) · Intermediate · Course · 1 - 3 Months
Fractal Analytics
Skills you'll gain: Prompt Engineering, Responsible AI, Generative AI, AI Security, Management Consulting, Business Consulting, Consulting, AI Enablement, Technical Consulting, Quality Assurance, Market Intelligence, Market Research, Automation
★ 4.3 (33) · Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Prompt Patterns, Generative AI Agents, AI Orchestration, AI Workflows, Business Process Automation, Make.com, Large Language Modeling, Automation, ChatGPT, Agentic systems, Generative Model Architectures, Agentic Workflows, LangChain, Responsible AI, AI Security, Workflow Management, OpenAI, Process Optimization, Application Programming Interface (API), Decision Support Systems
★ 4.3 (20) · Beginner · Specialization · 1 - 3 Months

University of Minnesota
Skills you'll gain: Operations Research, Mathematical Modeling, Business Modeling, Business Analytics, Analytics, Process Optimization, Data-Driven Decision-Making, Model Optimization, Microsoft Excel, Decision Making, Excel Formulas, Spreadsheet Software, Graphing
★ 4.7 (90) · Beginner · Course · 1 - 4 Weeks