字符串最后一个单词的长度
题目：牛客网
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in = new Scanner(System.in);
while(in.hasNext()){
String str = in.nextLine();
String[] arr = str.split(" ");
System.out.println(arr[arr.length-1].length());
}
}
}
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