Scala Tutorials : Lists and important operations on List with examples

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Lists are probably the most commonly used data structure in Scala programs.

Lists in scala are quite similar to arrays, but there are two important differences.

a) lists are immutable. That is, elements of a list cannot be changed

by assignment.

b) Second, lists have a recursive structure (i.e., a linked list),1

whereas arrays are flat.

Like arrays, lists are homogeneous: the elements of a list all have the same

type.

Here are some of the operations on list :

head returns the first element of a list

tail returns a list consisting of all elements except the first

isEmpty returns true if the list is empty

val color = List("red", "green", "yello")

val numbers = List(1, 2, 3, 4)

val multiList =

List(

List(1, 0, 0),

List(0, 1, 0),

List(0, 0, 1)

)

val empty = List()

scala list operations examples,

scala list methods examples,
scala list map examples,

scala list collect example,

scala list count example,

scala list contains example,

scala list comprehension example,

scala list combinations example,

scala spark collect_list example,

list examples in scala,
scala list tomap example,

scala list tail example,

scala list takewhile example,

scala list take example,

scala list tuple example,

scala list head tail example