How to print the value of variables using printf() function?

Overview

The printf() function stands for print format. It is an Input/Output function that is used to print values of variables in Scala. As the name suggests, it is used to print values in different formats. For instance, %f stands for float, %d stands for integer, %s stands for string, and %c stands for character format.

Syntax

The syntax for using the printf function is shown below:

printf("%format", variable)
Syntax for printf() function

Parameter

%format: this is the format representing the data type of the variable we want to print.

variable: this is the variable whose value we want to print to the console.

Return Value

The value returned is the value of the variable .

Code Example

Let's view a code example.

object Main extends App {
    // create mutable variables in Scala
    var age:Int = 50
    var isMarried:Boolean = false
    var name:String = "John Doe"
    var gender:Char = 'M'
    var height:Float = 5.65F
    // print values of variables
    printf("age is = %d\n", age)
    printf("isMarried is = %b\n", isMarried)
    printf("name is = %s\n", name)
    printf("gender is = %c\n", gender)
    printf("height is = %f\n", height)
}

Explanation

  • Lines 3-7: create some variables in Scala and initialize them.
  • Lines 10-14: print the values to the console by specifying the formats.

Free Resources

License: Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0)