Java——P5015标题统计

package 入门5;
import java.io.*;
import java.util.Scanner;
public class P5015标题统计 {
	public static void main(String []args) {
		Scanner in = new Scanner(System.in);
		String str = in.nextLine();
		int a = 0;
		for(int i = 0; i < str.length(); i++) {
			if(str.charAt(i)==' ') {
				a++;
			}
		}
		System.out.println(str.length()-a);
	}
}