Problem 001:java software, belongs to the system software or the application software?

Some small questions to learn before learning Java:

Question one: Does Java software belong to system software or application software?

The Java language application on the computer system, first should know that the computer system is divided into several parts?

The computer system is composed of two parts: hardware and software system. Hardware is the body, software is the soul.

Software system is divided into system software, (such as: Windows Linux iOS andriod, etc.)

Application software, (such as Thunder, QQ, games, etc.).

Does Java software belong to system software or application software?

By classic hierarchy in and the basic level of the operating system but in fact you can also think that the application software editing and compiling phase is an application software, but if you start debugging the state of the Debug de-compilation is a system-level
Use Java to develop a variety of application software.

Problem 001:java software, belongs to the system software or the application software?