Variable
is a named memory location used to store data.
Syntax
var
variableName : DataType = value
val
variableName : DataType = value
Both
‘var’ and ‘val’ are the keywords.
Ex
var a : Int =10;
var a : Int =10;
‘a’
is of type int and assigned with value 10.
val
b : Double = 1.23
‘b’
is of type Double and assigned with value 1.23. The keyword ‘val’ is used to
define constants (immutable objects).
HelloWorld.kt
fun main(args: Array<String>) { var a : Int =10; val b : Double = 1.23 println("a : ${a}") println("b : ${b}") }
C:\>kotlinc HelloWorld.kt C:\>kotlin HelloWorldKt a : 10 b : 1.23
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