题解 | #字符串最后一个单词的长度#

import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
	    Scanner sc = new Scanner(System.in);
	    String inputStr = sc.nextLine();
	    int length = 0;
	    if (inputStr==null || inputStr.equals("")) {
	       length = 0;
	    } else {
	    	String[] arr = inputStr.split(" ");
	    	int arrLength = arr.length;
            if (arrLength >=1){
	    	    String lastStr = arr[arrLength-1];
	    	    length = lastStr.length();
            } else {
                length = 0;
            }
	    }
	    System.out.println(length);
	}

}