本文介绍了更改数组为字符串而无需创建一个字符串的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我要做到:
String []beef = new String[3];
beef[0] = "Water";
beef[1] = "Chicken";
beef[2] = "Paper";
String empo = Arrays.toString(beef);
if (empo.isEmpty()){
empo = "Nothing";
System.out.println(empo);
}else{
System.out.println(empo);
}
而无需创建字符串。
without having to create the string.
结果
是这样的:
Something like:
String []beef = new String[3];
beef[0] = "Water";
beef[1] = "Chicken";
beef[2] = "Paper";
Arrays.toString(beef); //change beef to just a plain string
if(beef.isEmpty()||beef==""){
no = "Nothing";
System.out.println(beef);
如何将一个去这样做呢?
How would one go about doing this?
推荐答案
Java是并的的静态类型语言。这意味着你必须告诉它的事情会是什么类型的,当你把它声明(强类型),而且你永远不能改变它是(静态类型)后类型。
You can't.
Java is a strongly and statically typed language. That means you have to tell it what type a thing will be when you declare it (strong typing), and you can't ever change it's type after that (static typing).
您只需要创建一个新的字符串
。
You will just have to create a new String
.
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