Fizz Buzz

题目：

Given number n. Print number from 1 to n. But:

when number is divided by 3, print "fizz".
when number is divided by 5, print "buzz".
when number is divided by both 3 and 5, print "fizz buzz".

分析：

两种int转string的方法
res.add(Integer.toString(i) );
res.add(String.valueOf(i) );

解法：

class Solution {
    /**
     * param n: As description.
     * return: A list of strings.
     */
    public ArrayList<String> fizzBuzz(int n) {
        ArrayList<String> res = new ArrayList<String>();
        for (int i = 1; i <= n; i++) {
            if (i % 3 == 0 && i % 5 == 0) {
                res.add("fizz buzz");
            } else if (i % 3 == 0) {
                res.add("fizz");
            } else if (i % 5 == 0) {
                res.add("buzz");
            } else {
                // res.add(Integer.toString(i) );
                res.add(String.valueOf(i) );
            }
        }
        return res;
    }
}