[백준] 1152번 : 단어의 개수 - JAVA

import java.util.Scanner;
import java.util.StringTokenizer;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String result = scan.nextLine();
		StringTokenizer st = new StringTokenizer(result," ");
		System.out.println(st.countTokens());	
	}
}