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LengthofLastWord.java

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package String;

/**

* 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.

*/

public class LengthofLastWord {

public int lengthOfLastWord(String s) {

if(s == null || s.length() == 0)

return 0;

String[] strs = s.split(" ");

if(strs.length == 0)

return 0;

return strs[strs.length - 1].length();

}

public static void main(String[] args) {

// TODO Auto-generated method stub

LengthofLastWord test = new LengthofLastWord();

String s = " ";

System.out.println(test.lengthOfLastWord(s));

}

}