Method length

Java/Leetcode/Leetcode58.java:9–18

(String str)

    }

    static int length(String str){
        StringBuilder s=new StringBuilder(str.trim());
        int l=0;
        for (int i = s.length()-1; i >=0 ; i--) {
            if(Character.isWhitespace(s.charAt(i))){
                return l=(s.substring(i+1).length());
            }
        }
        return s.length();
    }
}