9题 Fizz Buzz

原创于 2021-05-20 21:09:17 发布 · 90 阅读

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这篇文章详细介绍了如何使用Java编写FizzBuzz问题的解决方案，通过代码展示了如何根据数的除法规则打印相应的'fizz', 'buzz'或'fizzbuzz'。适合初学者理解条件语句和字符串操作。

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Fizz Buzz

Description
Given number n. Print number from 1 to n. According to following rules:

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”.
when number can’t be divided by either 3 or 5, print the number itself.

public class Solution {
    /**
     * @param n: An integer
     * @return: A list of strings.
     */
    public List<String> fizzBuzz(int n) {
        // write your code here
        List<String> result = new ArrayList<String>() ;
        for(int i = 1 ; i <= n ; i++){
            if(i % 3 == 0  &&  i % 5 == 0){
                result.add("fizz buzz") ;
                
            }else if(i % 3 == 0 && i % 5 != 0){
                result.add("fizz") ;

            }else if (i % 5 == 0 && i % 3 != 0){
                result.add("buzz") ;
            }else{
                String count = i + "" ;
                result.add(count) ;
            }
        }
        return result ;
    }
}