I noticed in many books it is used:
System.in.read() is to get something from the keyboard. Why isn't the
Scanner class used there? Because
System.in.read() is faster than creating an instance of the
Scanner class and then creating such a construction:
Scanner scanner = new Scanner(System.in); String name = scanner.nextLine();
Scanner scanner = new Scanner(System.in); int x = scanner.nextInt();
Searched Stackoverflow and found no difference between System.in.read and Scanner class.
There is a difference, and, moreover, a significant one.
System.in.read() can only read 1 character as
At the same time,
Scanner is a versatile piece that allows you to read in the format you need.
If you need to count by characters, then you should not bother, but use
System.in.read() . In other cases, these are, in particular, files, we use