在 Scala 中创建对象数组
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Create an array of objects in scala
提问by Siva Prasad
I have been trying to figure out on how to create an Array of Objects like we have the below in Java.
我一直在试图弄清楚如何创建一个对象数组，就像我们在 Java 中拥有的一样。
Bubble[] bubble = new Bubble[2];
泡泡[] 泡泡 = 新泡泡[2];
I have defined a class as below:
我定义了一个类如下：
class TestUser {
var username = ""
var password= ""
var List = ArrayBuffer.empty[String]
var DBFile = ""
}
I have to create an array of objects of the above class.
我必须创建上述类的对象数组。
Like in Java --> How to initialize an array of objects in Java
就像在 Java 中一样 -->如何在 Java 中初始化对象数组
Can anyone please help me out?
任何人都可以帮我吗？
采纳答案by Michael Nedokushev
Hmmm, are you serious? Okay...
嗯，你是认真的吗？好的...
val bubble = Array.fill[Bubble](2)(Bubble())
The first argument defines a size, and the second just initializes array with values of Bubble().
第一个参数定义了一个大小，第二个参数只是用 Bubble() 的值初始化数组。
回答by Jordan Parmer
I think you should step back and research collections in Scala. In Scala, it is not conventional to use an Array type but to instead use the extremely powerful collections library.
我认为你应该退后一步研究 Scala 中的集合。在 Scala 中，使用 Array 类型并不是传统的做法，而是使用极其强大的集合库。
Be wary of trying to "do Java in Scala".
小心尝试“在 Scala 中执行 Java”。
Take a look at Lists, Sequences, etc. and become familiar with immutable patterns to handle collections.
看看列表、序列等，熟悉处理集合的不可变模式。
回答by Bibil Mathew Chacko
var dice:Array[Dice]=new Array[Dice](2)
dice(0)=new Dice()
dice(1)=new Dice()
回答by Leyth G
I would recommend reading this to gain proper understanding of mutable and immutable collections in Scala.
我建议阅读本文以正确理解 Scala 中的可变和不可变集合。
http://docs.scala-lang.org/overviews/collections/overview.html
http://docs.scala-lang.org/overviews/collections/overview.html
