Mutable Linked List in Scala
0
$begingroup$
Scala newbie here. I'm trying to implement a mutable linked list in Scala. So far, I am only supporting the add() operation. Here's my stab at it:
class MutableList[T] {
class Node[T](val value: T) {
var next: Node[T] = null
def hasNext = (next != null)
}
var first, last: Node[T] = null
var size = 0
def add(value: T) = {
val newNode = new Node[T](value)
if (first == null) {
assert(size == 0)
first = newNode
last = newNode
} else {
last.next = newNode
}
size += 1
}
override def toString = {
def getValues() = {
var current = first
for (i <- 1 to size) yield {
val valStr = current.value.toString
current = current.next
valStr
}
}
getValues().mkString(",")
}
}
I know that a mutable data structure is not the best thing to use/implement in Scala. But I'm just experimenting and was wondering if there is a more functional Scala way of writing this?
scala
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
0
$begingroup$
Scala newbie here. I'm trying to implement a mutable linked list in Scala. So far, I am only supporting the add() operation. Here's my stab at it:
class MutableList[T] {
class Node[T](val value: T) {
var next: Node[T] = null
def hasNext = (next != null)
}
var first, last: Node[T] = null
var size = 0
def add(value: T) = {
val newNode = new Node[T](value)
if (first == null) {
assert(size == 0)
first = newNode
last = newNode
} else {
last.next = newNode
}
size += 1
}
override def toString = {
def getValues() = {
var current = first
for (i <- 1 to size) yield {
val valStr = current.value.toString
current = current.next
valStr
}
}
getValues().mkString(",")
}
}
I know that a mutable data structure is not the best thing to use/implement in Scala. But I'm just experimenting and was wondering if there is a more functional Scala way of writing this?
scala
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
0
0
0
$begingroup$
Scala newbie here. I'm trying to implement a mutable linked list in Scala. So far, I am only supporting the add() operation. Here's my stab at it:
class MutableList[T] {
class Node[T](val value: T) {
var next: Node[T] = null
def hasNext = (next != null)
}
var first, last: Node[T] = null
var size = 0
def add(value: T) = {
val newNode = new Node[T](value)
if (first == null) {
assert(size == 0)
first = newNode
last = newNode
} else {
last.next = newNode
}
size += 1
}
override def toString = {
def getValues() = {
var current = first
for (i <- 1 to size) yield {
val valStr = current.value.toString
current = current.next
valStr
}
}
getValues().mkString(",")
}
}
I know that a mutable data structure is not the best thing to use/implement in Scala. But I'm just experimenting and was wondering if there is a more functional Scala way of writing this?
scala
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Scala newbie here. I'm trying to implement a mutable linked list in Scala. So far, I am only supporting the add() operation. Here's my stab at it:
class MutableList[T] {
class Node[T](val value: T) {
var next: Node[T] = null
def hasNext = (next != null)
}
var first, last: Node[T] = null
var size = 0
def add(value: T) = {
val newNode = new Node[T](value)
if (first == null) {
assert(size == 0)
first = newNode
last = newNode
} else {
last.next = newNode
}
size += 1
}
override def toString = {
def getValues() = {
var current = first
for (i <- 1 to size) yield {
val valStr = current.value.toString
current = current.next
valStr
}
}
getValues().mkString(",")
}
}
I know that a mutable data structure is not the best thing to use/implement in Scala. But I'm just experimenting and was wondering if there is a more functional Scala way of writing this?
scala
scala
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
Aashish DattaniAashish Dattani
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
Aashish DattaniAashish Dattani
1
asked 12 mins ago
Aashish DattaniAashish Dattani
1
1
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Aashish Dattani is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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