Hands-On Design Patterns with Kotlin

While loop

There are no changes to the while loop functionality, so we'll cover them very briefly:

var x = 0while (x < 10) {    x++    println(x)}

This will print numbers from 1 to 10. Note that we are forced to define x as var. In the following chapters, we'll discuss much more idiomatic ways to do this.

The lesser used do while loop is also present in the language:

var x = 5   do {       println(x)      x--} while (x > 0)