一种在Java中初始化空String数组的优雅方法 [英] An elegant way of initialising an empty String array in Java

问题描述

在我正在处理的当前代码库中，我发现自己需要初始化许多不同长度的空String []。

截至目前，它们是始终按以下方式初始化：

  String [] a = new String [] {，，， ，，，，，} //等... 
  

虽然这是一个简单的单行解决方案，但我个人的偏好是相当难看。

我只是想知道是否有人知道任何现有的API /实用程序这提供了一种方法，可以更优雅地初始化空字符串数组。我正在考虑以下几点：

  StringUtils。* initialiseEmptyArray *（int size）; 
  

有谁知道这种方法吗？

<如果需要的话，我总是可以写自己的，只是不想重新发明它已经完成的轮子。

谢谢

解决方案

您可以使用 Arrays.fill 方法： -

  Arrays.fill（a，）; 
  

In the current code base that I'm working on I find myself needing to initialise many empty String[] of different lengths.

As of now, they are always initialised in the following way:

String[] a = new String[]{"","","","","","","","",""} // etc...

Although this is a simple one line solution, my personal preference is that it's rather ugly.

I was just wondering if anyone is aware of any existing API/Utility that offers a method where an array of empty strings can be initialised more elegantly. I was thinking something along the lines of:

StringUtils.*initialiseEmptyArray*(int size);

Does anyone know of any such method?

I can always write my own if need be, just didn't want to re-invent the wheel if its already been done.

Thanks

解决方案

You can use Arrays.fill method: -

Arrays.fill(a, "");

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