Kotlin Variables Example

Chapter: Kotlin Last Updated: 11-11-2017 18:12:26 UTC

Program:

            /* ............... START ............... */
                
fun main(args : Array<String>) {

    var name = "Kotlin"
    val cash = 95
    var percentage = 10.34

    println(name+"-"+cash+"-"+percentage)

    var language: String      //  String Variable Declaration
    language = "english"       // Initializing the variaable

    val score: Int          // Int variable Declaration
    score = 200             // Initializing the variaable

}

                /* ............... END ............... */
        

Output

Kotlin-95-10.34

Notes:

• In Kotlin either var or val keyword is used to declare the variable.
• We don't want to specify the type of variable, Kotlin implicitly conveting to the proper data types.
• val in Kotlin : The variable declared using val keyword cannot be changed once the value is assigned.
• It is similar to final variable in Java.
• var in Kotlin - The variable declared using var keyword can be changed later in the program. It corresponds to regular Java variable.
• Go through the above program to get more understanding about Kotlin var and val.

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