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?
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];