Create an array of objects in scala

Question

I have been trying to figure out on how to create an Array of Objects like we have the below in Java.

Bubble[] bubble = new Bubble[2];

I have defined a class as below:

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.

Like in Java --> How to initialize an array of objects in Java

Can anyone please help me out?

you might want to look through this http://www.scala-lang.org/api/current/index.html#scala.Array — benji
– benji, Commented Dec 10, 2014 at 2:44
class TestUser { var username = "" var password= "" var List = ArrayBuffer.empty[String] var DBFile = "" } For the above class if i have to initialize an array of objects var Users = ArrayBuffer[TestUser] returns an error — Siva Prasad
– Siva Prasad, Commented Dec 10, 2014 at 2:47

Jordan Parmer · Accepted Answer · 2014-12-10 03:14:32Z

2

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.

Be wary of trying to "do Java in Scala".

Take a look at Lists, Sequences, etc. and become familiar with immutable patterns to handle collections.

https://twitter.github.io/scala_school/collections.html

answered Dec 10, 2014 at 3:14

Jordan Parmer

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Comments

Michael Nedokushev · Accepted Answer · 2014-12-10 02:53:05Z

1

Hmmm, are you serious? Okay...

val bubble = Array.fill[Bubble](2)(Bubble())

The first argument defines a size, and the second just initializes array with values of Bubble().

answered Dec 10, 2014 at 2:53

Michael Nedokushev

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2 Comments

Siva Prasad Over a year ago

val Users = Array.fill[TestUser](2)(TestUser()) does not work . class TestUser { var username = "" var password= "" var List = ArrayBuffer.empty[String] var DBFile = "" }

Michael Nedokushev Over a year ago

That's because your TestUser should be declared as 'case class', or you should create an instance with 'new', like val users = Array.fill[TestUser](2)(new TestUser())

Bibil Mathew Chacko · Accepted Answer · 2015-02-15 09:47:37Z

1

var dice:Array[Dice]=new Array[Dice](2)
dice(0)=new Dice()
dice(1)=new Dice()

Array Of Objects in Scala

edited Feb 15, 2015 at 9:47

user3559349

answered Feb 15, 2015 at 9:27

Bibil Mathew Chacko

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Comments

Leyth G · Accepted Answer · 2017-01-24 15:13:59Z

0

I would recommend reading this to gain proper understanding of mutable and immutable collections in Scala.

http://docs.scala-lang.org/overviews/collections/overview.html

answered Jan 24, 2017 at 15:13

Leyth G

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