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.

Johns Hopkins University
Skills you'll gain: Rmarkdown, Version Control, Data Science, R (Software), GitHub, Data Literacy, Data Analysis, R Programming, Statistical Programming, Exploratory Data Analysis, Software Installation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Big Data, Data Lakes, Microsoft Azure, Data Processing, Data Integration, Cloud Management, Cloud Services
Advanced · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Reinforcement Learning, Data-Driven Decision-Making, Markov Model, Time Series Analysis and Forecasting, Bayesian Statistics, Data Science, Predictive Analytics, Anomaly Detection, Probability Distribution, Machine Learning Methods, Statistical Analysis, A/B Testing, Sampling (Statistics)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Plotly, Exploratory Data Analysis, Predictive Modeling, Data Science, Data-Driven Decision-Making, Data Presentation, Data Analysis, Pandas (Python Package), Web Scraping, Statistical Modeling, Data Wrangling, Machine Learning Methods, Data Collection, GitHub
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Data Warehousing, Database Design, Data Integration, Extract, Transform, Load, Data Modeling, Star Schema, Relational Databases, Snowflake Schema, Data Architecture, Business Intelligence, SQL, Pivot Tables And Charts, Data Mart, PostgreSQL, Data Transformation, Data Quality
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Manipulation, Data Cleansing, Data Wrangling, Data Import/Export, Data Collection, Data Management, Web Scraping, R Programming, MySQL, SQL, Application Programming Interface (API)
Mixed · Course · 1 - 4 Weeks

Amazon
Skills you'll gain: Full-Stack Web Development, Restful API, Front-End Web Development, Web Services, Application Deployment, Web Development, Spring Framework, Amazon Web Services, HTML and CSS, Server Side, Java Platform Enterprise Edition (J2EE), Web Applications, Back-End Web Development, Spring Boot, Model View Controller, Responsive Web Design, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Matplotlib, Plotly, Prompt Engineering, Data Ethics, Power BI, Data Visualization, Microsoft Excel, Data Manipulation, Exploratory Data Analysis, Data Cleansing, Pandas (Python Package), Data Transformation, Excel Formulas, Pivot Tables And Charts, Data Visualization Software, Data Analysis, Microsoft Copilot, Data Presentation, Data Processing
Intermediate · Specialization · 3 - 6 Months

Wesleyan University
Skills you'll gain: Descriptive Statistics, Data Manipulation, Data Presentation, Data Management, Data Literacy, Graphing, SAS (Software), Peer Review, Data Analysis, Statistics, Research Reports, Exploratory Data Analysis, Python Programming
Mixed · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Analytical Skills, Data Ethics, Data Mining, Data Strategy, Data Science, Business Analytics, Data Analysis, Big Data, Analytics, Business Intelligence, Descriptive Analytics, Predictive Analytics, Data Processing, Small Data
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, Agentic systems, Data Ethics, Data Pipelines, Real Time Data, No-Code Development, Applied Machine Learning, Machine Learning, Data Analysis, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Program Evaluation, Data Processing, Data Collection
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Lightweight Directory Access Protocols, Splunk, System Monitoring, Role-Based Access Control (RBAC), Authentications, Data Storage, Data Management, Data Infrastructure, Authorization (Computing), Enterprise Security, Disaster Recovery, Identity and Access Management, Data Integrity, User Accounts, Dataflow, Data Security, System Configuration, Configuration Management
Mixed · Course · 1 - 3 Months