How to remove elements from an ArrayList in Kotlin

How to remove elements from an ArrayList in Kotlin.

Here's a step-by-step tutorial on how to remove elements from an ArrayList in Kotlin:

Create an ArrayList:

val numbers = arrayListOf(1, 2, 3, 4, 5)

Remove an element by value:
```
numbers.remove(3)
```
In this example, the number 3 will be removed from the ArrayList numbers.
Remove an element by index:
```
numbers.removeAt(1)
```
In this example, the element at index 1 (which is the number 2) will be removed from the ArrayList numbers.
Remove multiple elements by value:
```
numbers.removeAll(listOf(1, 4))
```
In this example, both the number 1 and the number 4 will be removed from the ArrayList numbers.
Remove elements based on a condition:
```
numbers.removeIf { it > 3 }
```
In this example, all elements greater than 3 will be removed from the ArrayList numbers. The removeIf function takes a lambda expression that defines the condition for element removal.
Remove all elements from the ArrayList:
```
numbers.clear()
```
In this example, all elements will be removed from the ArrayList numbers, leaving it empty.

That's it! You now know how to remove elements from an ArrayList in Kotlin. Remember to use the appropriate method depending on whether you want to remove by value or by index, and consider using conditions or lists for removing multiple elements.