How to save the state of the activity when the application closes?

Question

Java

Namely, a WebView fragment. The question is how exactly to implement saving the state of the webview (namely, the open web page) and when the application is restarted, continue without a second (sorry for the tautology) request to the page.
It seems there is such an opportunity with SharedPreferences. But since I'm a teapot, I couldn't figure it out.