# 
#  Overview
In Kotlin, the **`contains`** method is used to check if the `ArrayDeque` contains a specific value or not.
#         
#  Syntax

```kotlin
fun contains(element: E): Boolean
```

##          
## Parameter value 
This method takes the argument, `element`, which represents the value we want to find.
##        
## Return value 

This method returns `True` if the passed value is equal to any of the values present in the `ArrayDeque`.

#         
## Code example 
The code given below demonstrates how we can check if the `ArrayDeque` contains a specific value:

fun main() {
    // create a new deque which can have string elements
    var deque = ArrayDeque<String>();

    // add three elements to dequeu
    deque.add("one");
    deque.add("two");
    deque.add("three");
    println("The deque is " + deque);

    // check if the deque contains the element one 
    println("\ndeque.contains('one'): " + deque.contains("one"));

    // check if the deque contains the element five
    println("\ndeque.contains('five'): " + deque.contains("five"));
    
}

#         
## Code explanation



* 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 12: We use the `contains` method to check if the `deque` contains the element `one`. The element `one` is present in the `deque`, so `true` is returned.

* Line 15: We use the `contains` method to check if the `deque` contains the element `five`. The element `five` is not present in the `deque`, so `false` is returned.

What is the contains() method in Kotlin?

Checks if ArrayDeque contains a specified value, returning true if found, otherwise false.