In this tutorial, we will learn about the Function overloading in Kotlin. Same as Java Methods we can overload function in Kotlin. To overload a function in Kotlin, the function must have the same name and parameter lists should be different(in data type or in numbers). Check out the following example program.
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Example Program:
//overloaded function
fun addition(num1: Int, num2: Int): Int{
return num1+num2
}
//overloaded function
fun addition(num1: Double, num2: Double): Double{
return num1+num2
}
fun main (args: Array<String>){
var ans=addition(10,20) //calling the addtion function with int values
println("Ans = "+ans)
var ans2=addition(21.5,11.2) //calling the addtion function with double values
println("Ans = "+ans2)
}
Output:
Ans = 30
Ans = 32.7
As in above example, you can see particular function is invoking on function call according to the parameter we are passing while calling the function,
Parvesh Sandila is a passionate web and Mobile app developer from Jalandhar, Punjab, who has over six years of experience. Holding a Master’s degree in Computer Applications (2017), he has also mentored over 100 students in coding. In 2019, Parvesh founded Owlbuddy.com, a platform that provides free, high-quality programming tutorials in languages like Java, Python, Kotlin, PHP, and Android. His mission is to make tech education accessible to all aspiring developers.​