如何在java中初始化String数组设置为null?

声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow 原文地址: http://stackoverflow.com/questions/23813418/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me): StackOverFlow

提示:将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间:2020-08-14 01:21:32  来源:igfitidea点击:

How can I initialization String array set null in java?

javanullinitialization

提问by user3666142

Title is all. How can I initialization String array set null in Java? for example,

标题就是全部。如何在 Java 中初始化 String 数组设置 null?例如,

String[] arr; 
arr = sqlite.select(1);
//here I want to set null arr!

采纳答案by Pshemo

Assuming that you want array like

假设你想要像这样的数组

String[] arr = {"foo", "bar"};

to become

成为

[null, null]

and do it in one line, then you can use

并在一行中完成,然后您可以使用

Arrays.fill(arr, null);

or create new array with same size as previous one

或创建与前一个大小相同的新数组

arr = new String[arr.length];