FizzBuzz.java

package easy;

import java.util.ArrayList;
import java.util.List;

/**
 * Write a program that outputs the string representation of numbers from 1 to n.
 * But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output “Buzz”. For numbers which
 * are multiples of both three and five output “FizzBuzz”.
 *
 * Example:
 * n = 15,
 * Return:
 * [
 * "1",
 * "2",
 * "Fizz",
 * "4",
 * "Buzz",
 * "Fizz",
 * "7",
 * "8",
 * "Fizz",
 * "Buzz",
 * "11",
 * "Fizz",
 * "13",
 * "14",
 * "FizzBuzz"
 * ]
 *
 * 解决思路:
 * 循环添加数字
 * 取模判断是否是3和5的公倍数, 是否是3的倍数, 是否是5的倍数 并添加相应字符串
 *
 * Created by huajun on 17-8-8.
 */
public class FizzBuzz {

    public static List<String> fizzBuzz(int n) {
        List<String> list = new ArrayList<>();
        for (int i = 1; i <= n; i++){
            if (i >= 5 && i % 5 == 0 && i % 3 == 0) list.add("FizzBuzz");
            else if (i >= 3 && i % 3 == 0) list.add("Fizz");
            else if (i >= 5 && i % 5 == 0) list.add("Buzz");
            else list.add(String.valueOf(i));
        }
        return list;
    }

}