# 1.1 kotlin
## Variables
The way Strings and Integers are defined:
```kotlin 
fun main(){
    // Define a variable as String var for dynamic variables
    var userName: String = "David"
    userName = "Josh"
    // Val for static variables, variable type can be omitted
    val userSurname = "Huallpa"
    var age:Int=20
    // var type is redundant, so we delete it
    age=24
    println("Hola $userName $userSurname!, you are $age")
}
```
For Integers, there are limiting values that can be used
```kotlin 
// There exist a min and a max value that can be storage as Integer
// To use a greater number, we need to use other datatype
fun main(){
    val minInteger = Int.MIN_VALUE
    val maxInteger = Int.MAX_VALUE
    println("Integer min value admitted: $minInteger")
    println("Integer max value admitted: $maxInteger")
}
```
output
```console 
Integer min value admitted: -2147483648
Integer max value admitted: 2147483647

Process finished with exit code 0
```