how to combine two list into Two-dimensional list

Question

I have two lists, List(1,2),List(3,4)

and I want Two-dimensional List(List(1,2),List(3,4)) like this,how?

score 1 · Answer 1 · answered May 08 '19 at 08:41

1

Is this what you mean?

val a = List(1,2)
val b = List(3,4)
val c = List(a,b) // List(List(1,2),List(3,4))

answered May 08 '19 at 08:41

Dionysis Nt.

1

@wangjiweisean if you could click the tick and accept the answer it would be appreciated :) – Dionysis Nt. May 08 '19 at 08:51

score 0 · Answer 2 · answered May 08 '19 at 08:48

0

if you really want a List of Lists then @Dionysis answer is ok. You can use

  val a = List(1,2)
  val b = List(3,4)
  a.zip(b) //res0: List[(Int, Int)] = List((1,3), (2,4))

if you don´t need that type

answered May 08 '19 at 08:48

2 Answers2