计算字符串最后一个单词长度，单词以空格隔开

hello world

5
源程序代码：

package package01;

import java.util.Scanner;

public class Main {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
findlastword(s);
}
public static void findlastword(String s){

String[] str = s.split(" ");
int length = str.length;
System.out.println(str[length-1].length());

}

}