题解 | #字符串最后一个单词的长度#
字符串最后一个单词的长度
https://www.nowcoder.com/practice/8c949ea5f36f422594b306a2300315da?tpId=37&tqId=21224&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3FtpId%3D37&difficulty=undefined&judgeStatus=undefined&tags=&title=
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String str = sc.nextLine();
int length = str.length();
int count = 0;
for(int i = length-1; i>=0; i--){
if(str.charAt(i)==' '){
break;
}
count ++;
}
System.out.println(count);
}
}
1. 从后向前遍历字符串字符，直到字符为' ';
2. 打印计数器count;
