Java数组递归 [英] Java Array Recursion

问题描述

此作业的目的是学习递归方法.对于此特定问题，我需要打印 list 的值，每行打印一个.我需要完成的方法的框架无法更改，如下所示:

The purpose of this assignment is to learn recursive methods. For this particular problem, I need to print the values of list, one per line. The skeleton of the method I need to complete cannot be changed and is as follows:

public void list (String[] list) {

}

说明说辅助方法可能使编写起来更容易.这是我的助手方法所拥有的:

The instructions say that helper methods may make this easier to write. Here is what I have for my helper method:

public void print(String[] list, int index) {    
      if (index < list.length) {
          System.out.println(list[index]);
          print(list, index+1);
      }
}  

我只想通过list方法调用print方法进行测试.我知道评分是通过脚本完成的，因此我也无法更改list方法的返回类型或参数.请原谅我的格式错误，并在此先感谢您的帮助！

I would just like to call the print method through the list method for testing. I know the grading is done through a script, so again I cannot change the return type or parameters of the list method. Please excuse my formatting errors, and thank you in advance for your help!

推荐答案

如果这样做，我将使用名称为 print()或类似名称的辅助方法.

If I were doing this I would use a helper method with the name of print() or something similar.

在考虑程序的逻辑方面，请考虑您需要做的事情:

In terms of thinking about the logic of the program, think about what you would need to do:

具有一个辅助方法 print():

• 在新行上打印列表中的当前项目
• 然后调用一个函数以打印列表中的下一个和后续项目，每个项目都在新行上显示

您认为第二个功能可能是什么?提示:这是递归的...

What do you think that second function could be? Hint: It's recursive...

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