Kotlin If, When and While

Kotlin - If, When and While

• if is nearly ubiquitous in computer programming.

Java

if(i > 10) {
	// Do something.
}
else {
	// Do something else.
}

JavaScript

if(i > 10) {
	// Do something.
}
else {
	// Do something else.	
}
// Yes, it is the same as Java syntax.

Ruby

if(i > 10) 
	# Do something.
else
	# Do something.
end	

Kotlin

val i = 3
if(i > 10) {
	println("Something")
}
else {
	println("Something else")
}

1. For single-line conditional work, you can skip the braces.

val i = 3
if(i > 10) println("Something") else println("Something else")

2. It also supports else if in addition to a simple else:

val i = 3
if(i > 10) println("Something")
else if(i > 2) println("Something else")
else println("And now for something completely different")