How do you declare for loop in Kotlin?

Kotlin for loop is used to iterate a part of program several times.

Infinite do while loop in Kotlin

Like Java, do-while loop is a control flow statement which executes a block of code at least once without checking the condition, and then repeatedly executes the block, or not, it totally depends upon a Boolean condition at the end of do-while block.20 May 2019

The strange += operator in Kotlin introduce an immutable structure of the class for the plus operator which means any class outside the class can’t edit its internal data . introduce a mutable structure of the class for the plusAssign operator which means its internal data can be edited anywhere.