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How to insert an element at a specific position in a LinkedList in Kotlin

How to insert an element at a specific position in a LinkedList in Kotlin.

Here's a step-by-step tutorial on how to insert an element at a specific position in a LinkedList in Kotlin:

Step 1: Create a LinkedList​

To start, create an instance of the LinkedList class in Kotlin. You can do this by using the LinkedList constructor, which takes no arguments. Here's an example:

val linkedList = LinkedList<String>()

Step 2: Add elements to the LinkedList​

Next, you need to add some elements to the LinkedList. You can use the add method to add elements at the end of the list. Here's an example:

linkedList.add("Apple")
linkedList.add("Banana")
linkedList.add("Orange")

After executing these statements, the LinkedList will contain the elements "Apple", "Banana", and "Orange".

Step 3: Define the position to insert the element​

Now, you need to determine the position at which you want to insert a new element. Keep in mind that the position is zero-based, meaning the first element is at index 0, the second element is at index 1, and so on.

For example, let's say you want to insert an element at position 1 (after the first element). You can store the desired position in a variable like this:

val position = 1

Step 4: Insert the element at the specified position​

To insert an element at a specific position in the LinkedList, you can use the add method with an index parameter. This method takes two arguments: the index at which to insert the element and the element itself. Here's an example:

val element = "Mango"
linkedList.add(position, element)

After executing these statements, the LinkedList will contain the elements "Apple", "Mango", "Banana", and "Orange". The element "Mango" has been inserted at position 1.

Step 5: Verify the result​

To verify that the element has been inserted correctly, you can iterate over the LinkedList and print its elements. Here's an example:

for (item in linkedList) {
    println(item)
}

The output will be:

Apple
Mango
Banana
Orange

This confirms that the element "Mango" has been successfully inserted at position 1 in the LinkedList.

That's it! You have successfully inserted an element at a specific position in a LinkedList in Kotlin.