Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Convert Kotlin Array to Java varargs
Varargs, also known as "variable arguments" is a new mechanism in Java by which methods in Java can accept zero or multiple number of arguments. Before this mechanism, the only option available to achieve this type of functionality was "method overloading", but that also required multiple lines of boilerplate code.
In this article, we will see how we can use Varags in Kotlin to call a function multiple times based on different types of arguments. The following example demonstrates how we can use this Varags keyword.
Example
fun main() {
// calling the function with 4 arguments and
// passing 3 arguments as recurring call to the function
val sumOf4Numbers = sum(12, sum(2, 4, 6))
println("Sum of 4 numbers: " +sumOf4Numbers)
// calling the same function with 3 arguments and
// passing 2 arguments as recurring call to the function
val sumOf3Numbers = sum(12, sum(2, 6))
println("Sum of 3 numbers: " +sumOf3Numbers)
// calling the same function with 2 arguments
val sumOf2Numbers = sum(12, 2)
println("Sum of 2 numbers: " +sumOf2Numbers)
// calling the same function without any argument
val sumOf0Numbers = sum()
println("Sum of 0 numbers: " +sumOf0Numbers)
}
fun sum(vararg xs: Int): Int = xs.sum()Output
Once the above piece of code is executed, it will generate the following output
Sum of 4 numbers: 24 Sum of 3 numbers: 20 Sum of 2 numbers: 14 Sum of 0 numbers: 0
Updated on: 23-Nov-2021
196 Views
Advertisements