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fizz-buzz-java-2019-12-18-10-41-40-699's Introduction

FizzBuzz

===========

你是一名体育老师,在某次课距离下课还有五分钟时,你决定搞一个游戏。此时有120名学生在上课。游戏的规则是:

  1. 让所有学生拍成一队,然后按顺序报数。
  2. 学生报数时,如果所报数字是3的倍数,那么不能说该数字,而要说Fizz;如果所报数字是5的倍数,那么要说Buzz;如果所报数字是7的倍数,那么要说Whizz。
  3. 学生报数时,如果所报数字同时是两个特殊数的倍数情况下,也要特殊处理,比如3和5的倍数,那么不能说该数字,而是要说FizzBuzz, 以此类推。如果同时是三个特殊数的倍数,那么要说FizzBuzzWhizz。
  4. 学生报数时,如果所报数字包含了3,那么也不能说该数字,而是要说相应的单词,比如要报13的同学应该说Fizz。
  5. (选做) 如果数字中包含了3,那么忽略规则2和规则3,比如要报30的同学只报Fizz,不报FizzBuzz。
  6. (选做) 如果数字中包含了5,那么忽略规则4和规则5,并且忽略被3整除的判定,比如要报35的同学不报Fizz,报BuzzWhizz。
  7. (选做) 如果数字中包含了7,那么忽略规则6,并且忽略被5整除的判定,比如要报75的同学只报FIzz,其他case自己补齐。

现在,我们需要你完成一个程序来模拟这个游戏,他的输出应该是输出(片段):

1
2
Fizz
4
Buzz
Fizz
Whizz
8
Fizz
Buzz
11
Fizz 
Fizz
Wihzz
FizzBuzz
… 
一直到120 

你只需要实现核心逻辑就可以了。假设最外面已经有一个循环,比如:

for( int i = 0; i < 120; i++) {
    String result = fizzBuzz(i+1);
    System.out.println(result);
}

你只需要实现里面的fizzBuzz函数,用TDD的方式。

已存在代码说明

已经存在的代码主要讲解如何使用测试,我们看到HelloWorldTest下有两个测试,第一个测试演示了如何进行集成测试。 第二个测试演示了如何进行mock。

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