CODEWITHSUNDEEP
kotlin
Nicholas Chow
Nicholas Chow

Reputation: 281

How to add multiple statements inside a when statement in kotlin

I am trying to have multiple statements for one condition. For example: this is a sample code for when statement.

when (x) {
    1 -> print("x == 1")
    2 -> print("x == 2")
     else -> { // Note the block
        print("x is neither 1 nor 2")
   }
}

When x is 1, I also want to have an extra statement like x += 10, how can I do it?

Upvotes: 27

Views: 18247

Answers (1)

zsmb13
zsmb13

Reputation: 89638

You have the solution in your question with the "Note the block" comment. Branches of when can be blocks that can contain any number of statements:

when(x) {
    1 -> {
        println("x == 1")
        x += 10
        println("x == 11")
    }
    2 -> { ... }
    else -> { ... }
}

Writing a single statement branch just has a simplified syntax so that you don't need to surround it with {}.

Upvotes: 45

Related Questions