What is the most used Java framework for building Apps?

Question

The goal of this question is to find a framework, build an application in a short time.

Answer 1

I dont think this info will help you. You could narrow down to a specific topic and get better answers, like "What is the most used Java framework for building Android Apps?"

Answer 2

Spring Boot

Answer 3

I think collection framework is mostly used

Answer 4

use arch components in android studio for java