Become a Java Programmer

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

Introduces object-oriented terms like abstraction and inheritance and shows how to define requirements and use cases and create a conceptual model of your application.

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 get more out of Java, with platform- and framework-neutral tutorials that are useful for building web, mobile, and desktop applications.

Describes how to read and manage data from relational databases such as MySQL and SQL Server using the Java Database Connectivity (JDBC) API 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.