Can someone please explain how to use scanner in Java

Answer 1

You have it in the course.
https://www.sololearn.com/learn/Java/2220/

Anyways I will try to break it down for you to understand.

See everything in Java is classes and objects since it's an OOP language.

Scanner sc = new Scanner(System.in);

In the above line Scanner is a class and sc is a reference variable. An object of class is created using new Scanner().
The System.in means that the program needs an input either through the keyboard or any other source.

Answer 2

Thanks!!