Android Development with Kotlin

The if statement

At its core, Kotlin's if clause works the same way as in Java:

    val x = 5 
 
    if(x > 10){ 
        println("greater") 
    } else { 
        println("smaller") 
    } 

The version with the block body is also correct if the block contains single statements or expressions:

    val x = 5 
 
    if(x > 10) 
        println("greater") 
    else 
        println("smaller") 

Java, however, treats if as a statement while Kotlin treats if as an expression. This is the main difference, and this fact allows us to use more concise syntax. We can, for example, pass the result of an if expression directly as a function argument:

    println(if(x > 10) "greater" else "smaller") 

We can compress our code into single line, because the result of the if expression (of type String) is evaluated and then passed ...