LeetCode-412. Fizz Buzz-Java

一. 题目

Write a program that outputs the string representation of numbers from 1 to n.

But for multiples of three it should output “Fiz” 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"
]

二. 思路

如果number能被3整除，输出Fizz，如果number能被5整除，输出Buzz，如果number能被15整除，输出FizzBuzz。

注意: FizzBuzz的输出要在最前面，否则可能会输出两次字符串。

三. AC代码

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