• Declaring and initializing an array of integers

val numbers = arrayOf(1, 2, 3, 4, 5)
(or)
val numbers = intArrayOf(1, 2, 3, 4, 5)

print(numbers.contentToString()) //[1,2,3,4,5 ]

• Printing the elements of an array using a for loop

val numbers = arrayOf(1, 2, 3, 4, 5)
for (i in 0 until numbers.size) {
    println(numbers[i])
}

// if you have a mixed array of int and string you can use "is" keyword. 
// if(i is Int){}

• You can also use the "forEach" function, which takes a lambda as an argument. The lambda is called for each element in the array:

val numbers = arrayOf(1, 2, 3, 4, 5)
numbers.forEach { println(it) }

• Adding and Deleting Element

var numbers = arrayOf(1, 2, 3, 4, 5)
   numbers+=8
	 numbers-=8