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Doubly-linked list/Definition: Difference between revisions
→{{header|Kotlin}}: Updated example see https://github.com/dkandalov/rosettacode-kotlin for details
(Added Kotlin) |
(→{{header|Kotlin}}: Updated example see https://github.com/dkandalov/rosettacode-kotlin for details) |
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=={{header|Kotlin}}==
Rather than use the java.util.LinkedList<E> class, we will write our own simple LinkedList<E> class for this task:
<lang scala>// version 1.1.
class LinkedList<E> {
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fun insert(after: Node<E>?, value: E) {
if (after == null)
addFirst(value)
else if (after == last)
addLast(value)
else {
val next = after.next
val new = Node(value, after, next)
after.next = new
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}
override fun toString() = first.toString()
}
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