Java is known for its volcanic landscape, with a significant number of active and inactive volcanoes.

There are approximately 38 volcanoes in Java, Indonesia.

However, it's important to note that:

* Active vs. Inactive: This number includes both active and inactive volcanoes.

* Definition of "Volcano": The definition of a volcano can be subjective, and some may count smaller volcanic features that might not be traditionally considered "volcanoes."

Some of the most famous and active volcanoes in Java include:

* Mount Merapi: One of the most active volcanoes in the world.

* Mount Bromo: A popular tourist destination with stunning views.

* Mount Semeru: The highest volcano in Java.

* Mount Krakatoa: Known for its devastating 1883 eruption.

Do you have a specific volcano in mind, or are you looking for more information about volcanoes in Java? I'm happy to help!