Become a Java Programmer

Algorithms are the universal building blocks of programming. Learn the most popular and useful programming algorithms for searching and sorting data, counting values, and more.

Good software starts with great design. Get a fun and fresh introduction to object-oriented design and analysis—from defining requirements to diagramming classes.

Get started in Java programming. Learn how to write Java code and build simple Java applications with these beginner-level tutorials.

Get started with Java, the popular object-oriented programming language. In this course—the first installment in the Java Essential Training series—learn about basic Java syntax and the Java platform's fundamental architecture.

Learn Java 9, in part two of our essential training series. Learn about debugging, creating custom classes, working with inheritance, and more.

Practice coding with Java. Explore solutions to common programming challenges and compare them with other languages in the Code Clinic series.

Learn how to use the five most popular creational design patterns—Builder, Singleton, Prototype, Factory Method, and Abstract Factory—to write better Java code.

The best way to learn is to do: Learn Java by doing! Walk through four Java programming challenges with step-by-step solutions.

Explore Java modularity. Learn how to develop modular applications and restructure existing Java apps using the Java Platform Module System (JPMS), aka Project Jigsaw, in Java 9.

Expand your programming skills and learn how to get more out of the Java language and platform. Discover how to leverage some of the language’s more advanced features.

Learn the basics of parallel programming in Java to write more efficient, performant code.

Learn how to read and manage data from relational databases such as Postgres, Oracle Database, MySQL, and SQL Server using Java Database Connectivity (JDBC) in applications programmed with Java.

Leverage Java in your data science career. Learn how to use Java for two components of data science—data engineering and data analysis.

Review critical Java concepts-and commonly-asked interview questions-to ensure that you approach your Java interviews with confidence.

Take a deeper dive into the key mechanisms for writing concurrent and parallel programs. Discover how to parallelize a sequential program.