最后一个单词的长度
解法一:用lastIndexOf方法
public class LeetCode_058 {
public static int lengthOfLastWord(String s) {
s = s.trim();
if (!s.contains(" ")) {
return s.length();
}
int lastIndexOfSpace = s.lastIndexOf(" ");
return s.substring(lastIndexOfSpace, s.length() - 1).length();
}
public static void main(String[] args) {
System.out.println(lengthOfLastWord("Hello World"));
}
}