Java IDEs (Integrated Development Environments) are software tools designed to provide a comprehensive development environment for Java programmers. They offer features such as code editing, debugging, testing, and project management to streamline the Java development process. Here are some popular Java IDEs:

1. Eclipse: Eclipse is a highly extensible open-source IDE that supports multiple programming languages, including Java. It offers a rich ecosystem of plugins and extensions for various purposes, making it a versatile choice for Java development.

2. IntelliJ IDEA: IntelliJ IDEA, developed by JetBrains, is known for its intelligent code assistance, code analysis, and strong support for various Java frameworks. It comes in both community (free) and ultimate (commercial) editions.

3. NetBeans: NetBeans is an open-source IDE that provides robust support for Java development. It offers features like rapid application development (RAD) for GUI applications, support for Maven, and integration with other languages.

4. Visual Studio Code: While not a traditional IDE, Visual Studio Code (VS Code) is a highly extensible code editor developed by Microsoft. It has a strong Java extension ecosystem that allows you to build a Java development environment tailored to your needs.

5. Oracle JDeveloper: Oracle JDeveloper is an IDE primarily focused on Java EE (Enterprise Edition) development. It offers tools for building Java EE web applications and other enterprise-level Java applications.

6. BlueJ: BlueJ is an educational IDE designed for teaching introductory Java programming. It provides a simplified interface and visualization tools to help beginners learn Java concepts.

7. DrJava: DrJava is a lightweight and simple Java IDE suitable for beginners and educators. It provides a straightforward interface for writing and running Java code.

8. JCreator: JCreator is a lightweight commercial IDE for Java development with features like project management, code templates, and integrated debugging.

9. Code::Blocks: While primarily known for C and C++ development, Code::Blocks also supports Java through plugins. It’s an open-source IDE with a focus on simplicity and customization.

10. BlueJ: BlueJ is an educational IDE designed for teaching introductory Java programming. It provides a simplified interface and visualization tools to help beginners learn Java concepts.