Sorted order insertion of linked list in scala
Scala program for Sorted order insertion of linked list. Here problem description and explanation.
/*
Scala program for
Add node in sorted order of linked list
*/
// Linked list node
class LinkNode(var data: Int,
var next: LinkNode)
{
def this(data: Int)
{
this(data, null);
}
}
class SingleLL(var head: LinkNode)
{
def this()
{
this(null);
}
// Add new node in sorted order
def sortedAdd(data: Int): Unit = {
// Create new node
var node: LinkNode = new LinkNode(data);
if (this.head == null ||
this.head.data >= data)
{
// When linked list empty
// or new nodes are adding at beginning
node.next = this.head;
this.head = node;
}
else
{
var temp: LinkNode = this.head;
// Find position to add new node
while (temp.next != null &&
temp.next.data < data)
{
// Visit to next node
temp = temp.next;
}
node.next = temp.next;
// Add new node
temp.next = node;
}
}
// Display linked list element
def display(): Unit = {
if (this.head == null)
{
return;
}
var temp: LinkNode = this.head;
// Iterating linked list elements
while (temp != null)
{
print(""+ temp.data + " → ");
// Visit to next node
temp = temp.next;
}
print(" NULL\n");
}
}
object Main
{
def main(args: Array[String]): Unit = {
var sll: SingleLL = new SingleLL();
// Add Linked list node
sll.sortedAdd(1);
sll.sortedAdd(-3);
sll.sortedAdd(9);
sll.sortedAdd(4);
sll.sortedAdd(11);
sll.sortedAdd(-7);
print(" Linked List \n");
// -7 → -3 → 1 → 4 → 9 → 11 → NULL
sll.display();
}
}
Output
Linked List
-7 → -3 → 1 → 4 → 9 → 11 → NULL
Please share your knowledge to improve code and content standard. Also submit your doubts, and test case. We improve by your feedback. We will try to resolve your query as soon as possible.
New Comment