Embedded Files
58. Length of Last Word
Easy
Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.
If the last word does not exist, return 0.
Note: A word is defined as a character sequence consists of non-space characters only.
Example:
Input: "Hello World"
Output: 5
class Solution {
public int lengthOfLastWord(String s) {
if(s == null || s.length() == 0 || s.trim().length() == 0) {
return 0;
}
s = s.trim();
int lastIndexof = s.lastIndexOf(' ');
if(lastIndexof == -1) {
return s.length();
}
if(s.length()-1 == lastIndexof) {
return 1;
}
return s.length() - lastIndexof - 1;
}
}
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