The length of the sequence

README.md

For its input, the program gets a sequence of non-negative integers; each integer is written in a separate line. The sequence ends with an integer 0; when the program reads 0, it should end its work and output the length of the sequence (not counting the final 0).

Don’t read numbers following the number 0.

Main.java

import java.util.Scanner;
import static java.util.function.Predicate.not; 

class Main {    
    public static void main(String[] args) {        
        System.out.println(            
            new Scanner(System.in)                    
                    .tokens()                    
                    .takeWhile(not("0"::equals))                    
                    .count()        
        );    
    }
}