In Kotlin, we can increment a number by using the unary operator "++" or by adding 1 to the number directly. Here are examples for both:
1. Using the "++" operator:
var num = 5
num++
println(num) // Output: 6
2. Adding 1 to the number directly:
var num = 5
num = num + 1
println(num) // Output: 6
We can also use the shorthand form of adding 1 to the number:
var num = 5
num += 1
println(num) // Output: 6
All three examples will produce the same result, which is incrementing the value of the variable "num" by 1.