How do I install Xcode 9 without updating macOS?

Question

Does anyone have any idea to install Xcode 8 OR Xcode 9 without updating macOS?

I want to update my Xcode 7.1 to Xcode 8 or Xcode 9 (or 9.1) Beta.

But it is

Answer 1

from the terminal type the command:

xcode-select --install

in case if you having previous XCode to remove it type the command:

sudo rm -Rf /Library/Developer/CommandLineTools

before installing current one