In Kotlin, the get method is used to get an element at a given index.
fun get(index: Int): E
This method takes an argument, index, of the element to be retrieved from the ArrayDeque.
The
IndexOutOfBoundExceptionis thrown if the index value is greater than or equal to the size of thedeque.
This method returns the element at a given index.
fun main() {// create a new deque which can have string elementsvar deque = ArrayDeque<String>()// add three elements to dequeudeque.add("one");deque.add("two");deque.add("three");println("\nThe deque is " + deque);// get elements at indexprintln("\ndeque.get(0) :" + deque.get(0));println("\ndeque.get(2) :" + deque.get(2));try {// index 4 is greater than the size of the dequeprintln("\ndeque.get(4) :" + deque.get(4));} catch (e:Exception) {println(e)}}
Line 1: We create the main() function.
Line 3: We create an ArrayDeque with the name deque.
Lines 6–8: We use the add method to add three elements to the deque. Now, the deque is {one,two,three}.
Line 13: We use the get method with 0 as an argument. This returns the element at index 0 of deque. We get one as a result.
Line 14: We use the get method with 1 as an argument. This returns the element at index 1 of deque. and the result is ‘two’.
Line 18: We use the get method with 4 as an argument. The deque contains only 3 elements. Therefore, when we try to access the index greater than 2, we get IndexOutOfBoundsException.