Length of Last Word
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.
For example,
Given s = "Hello World"
,
return 5
.
Solution1:
public int lengthOfLastWord(String s) {
String[] strs = s.split(" ");
return strs.length == 0 ? 0 : strs[strs.length - 1].length();
}
Solution2:
public int lengthOfLastWord1(String s) {
return s.trim().length() - 1 - s.trim().lastIndexOf(" ");
}