• Source
    1. import java.util.*;
    2. public class Main {
    3. public static void main(final String[] args){
    4. final Scanner Scan = new Scanner(System.in);
    5. final String line = Scan.nextLine();
    6. final String[] parts = line.split("\\s+");
    7. System.out.println(parts.length);
    8. }
    9. }