Kotlin Programming Cookbook

and

The and function compares the corresponding bits of two values. If either of the two bits is 0, it gives 0, if not and both bits are 1, it gives 1.

Consider this example:

fun main(args: Array<String>) {  val a=2  val b=3  print(a and b)}

This is the output:

 2

Let's look at the explanation:

2 = 10 (Binary format)

3 = 11 (Binary format)

Bitwise AND of 2 and 3

              in binary

10 AND 11

10 = 2 (Decimal format)