Is it possible to develop in Java without installing JDK?

Development in Java without installing JDK is possible, but with limitations. JDK (Java Development Kit) includes the javac compiler and tools for building and running applications.

However, there are online compilers and development environments (such as Replit, JDoodle) that allow writing and executing Java code without local JDK installation.

You can also use containers with pre-installed JDK or IDEs with built-in compilation tools.

But for full-fledged development, especially in a professional environment, installing JDK on a local machine is standard and necessary.