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Example of variable length arguments

Variable-length arguments, also known as varargs, allow a function or method to accept an arbitrary number of arguments, whose number may vary from one function call to another. This is useful when you want to create a function that can handle different numbers of arguments without having to define a different function for each possible number of arguments.

Here given code implementation process.

/*
    C program for
    Example of variable length arguments
*/
#include <stdio.h>
#include <stdarg.h> // For variable arguments

void example(int n,...) 
{

    va_list record;

    // va_list with num number of arguments
    va_start(record, n);

    printf("\n Given %d paramter is ",n);

    // Execute loop through by parameter length
    for (int i = 0; i < n; ++i) 
    {
        // Display i-th paramter value
        printf("\n %d",va_arg(record, int));
    }
    
   // Clear the allocate memory
   va_end(record);

}

int main() 
{
    // First paramter indicate number of variable arguments
    // Test A 
    // number of parameters 5
    example(5, 1, 4, 3, 9, 6);
    // Test B 
    // number of parameters 2
    example(2, 11, 42);
}

Output

 Given 5 paramter is
 1
 4
 3
 9
 6
 Given 2 paramter is
 11
 42
/*
    Java Program for
    Example of variable length arguments
*/
public class VariableLengthArgs
{
	public void example(int...number)
	{
		// Get the length of parameter list
		int n = number.length;
		System.out.print("\nGiven " + n + " paramter is \n");
		// Execute loop through by parameter length
		for (int i = 0; i < n; ++i)
		{
			// Display parameter value
			System.out.println(number[i]);
		}
	}
	public static void main(String[] args)
	{
		VariableLengthArgs task = new VariableLengthArgs();
		// Test
		task.example(1, 2, 3);
		task.example(4, 6, 2, 6, 2, 88, 45);
	}
}

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
// Include namespace system
using System;
/*
    Csharp Program for
    Example of variable length arguments
*/
public class VariableLengthArgs
{
	public void example(params int[]number)
	{
		// Get the length of parameter list
		int n = number.Length;
		Console.Write("\nGiven " + n + " paramter is \n");
		// Execute loop through by parameter length
		for (int i = 0; i < n; ++i)
		{
			// Display parameter value
			Console.WriteLine(number[i]);
		}
	}
	public static void Main(String[] args)
	{
		VariableLengthArgs task = new VariableLengthArgs();
		// Test
		task.example(1, 2, 3);
		task.example(4, 6, 2, 6, 2, 88, 45);
	}
}

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
package main
import "fmt"
/*
    Go Program for
    Example of variable length arguments
*/

func  example(number...int) {
	// Get the length of parameter list
	var n int = len(number)
	fmt.Print("\nGiven ", n, " paramter is \n")
	// Execute loop through by parameter length
	for i := 0 ; i < n ; i++ {
		// Display parameter value
		fmt.Println(number[i])
	}
}
func main() {

	// Test
	example(1, 2, 3)
	example(4, 6, 2, 6, 2, 88, 45)
}

Output

Given 3 paramter is 
1
2
3

Given 7 paramter is 
4
6
2
6
2
88
45
<?php
/*
    Php Program for
    Example of variable length arguments
*/
class VariableLengthArgs
{
	public	function example(...$number)
	{
		// Get the length of parameter list
		$n = count($number);
		echo("\nGiven ".$n." paramter is \n");
		// Execute loop through by parameter length
		for ($i = 0; $i < $n; ++$i)
		{
			// Display parameter value
			echo($number[$i]."\n");
		}
	}
}

function main()
{
	$task = new VariableLengthArgs();
	// Test
	$task->example(1, 2, 3);
	$task->example(4, 6, 2, 6, 2, 88, 45);
}
main();

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
/*
    Node JS Program for
    Example of variable length arguments
*/
class VariableLengthArgs
{
	example()
	{
		// Get the length of parameter list
		var n = arguments.length;
		process.stdout.write("\nGiven " + n + " paramter is \n");
		// Execute loop through by parameter length
		for (var i = 0; i < n; ++i)
		{
			// Display parameter value
			console.log(arguments[i]);
		}
	}
}

function main()
{
	var task = new VariableLengthArgs();
	// Test
	task.example(1, 2, 3);
	task.example(4, 6, 2, 6, 2, 88, 45);
}
main();

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
#    Python 3 Program for
#    Example of variable length arguments
class VariableLengthArgs :
	def example(self, *number) :
		#  Get the length of parameter list
		n = len(number)
		print("\nGiven ", n ," paramter is ")
		i = 0
		#  Execute loop through by parameter length
		while (i < n) :
			#  Display parameter value
			print(number[i])
			i += 1
		
	

def main() :
	task = VariableLengthArgs()
	#  Test
	task.example(1, 2, 3)
	task.example(4, 6, 2, 6, 2, 88, 45)

if __name__ == "__main__": main()

Output

Given  3  paramter is
1
2
3

Given  7  paramter is
4
6
2
6
2
88
45
#    Ruby Program for
#    Example of variable length arguments
class VariableLengthArgs 
	def example(*number) 
		#  Get the length of parameter list
		n = number.length
		print("\nGiven ", n ," paramter is \n")
		i = 0
		#  Execute loop through by parameter length
		while (i < n) 
			#  Display parameter value
			print(number[i], "\n")
			i += 1
		end

	end

end

def main() 
	task = VariableLengthArgs.new()
	#  Test
	task.example(1, 2, 3)
	task.example(4, 6, 2, 6, 2, 88, 45)
end

main()

Output

Given 3 paramter is 
1
2
3

Given 7 paramter is 
4
6
2
6
2
88
45

/*
    Scala Program for
    Example of variable length arguments
*/
class VariableLengthArgs()
{
	def example(number : Int  *): Unit = {
		// Get the length of parameter list
		var n: Int = number.length;
		print("\nGiven " + n + " paramter is \n");
		var i: Int = 0;
		// Execute loop through by parameter length
		while (i < n)
		{
			// Display parameter value
			println(number(i));
			i += 1;
		}
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: VariableLengthArgs = new VariableLengthArgs();
		// Test
		task.example(1, 2, 3);
		task.example(4, 6, 2, 6, 2, 88, 45);
	}
}

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
import Foundation;
/*
    Swift 4 Program for
    Example of variable length arguments
*/
class VariableLengthArgs
{
	func example(_ number :Int...)
	{
		// Get the length of parameter list
		let n: Int = number.count;
		print("\nGiven ", n ," paramter is ");
		var i: Int = 0;
		// Execute loop through by parameter length
		while (i < n)
		{
			// Display parameter value
			print(number[i]);
			i += 1;
		}
	}
}
func main()
{
	let task: VariableLengthArgs = VariableLengthArgs();
	// Test
	task.example(1, 2, 3);
	task.example(4, 6, 2, 6, 2, 88, 45);
}
main();

Output

Given  3  paramter is
1
2
3

Given  7  paramter is
4
6
2
6
2
88
45
/*
    Kotlin Program for
    Example of variable length arguments
*/
class VariableLengthArgs
{
	fun example(vararg number: Int): Unit
	{
		// Get the length of parameter list
		val n: Int = number.count();
		print("\nGiven " + n + " paramter is \n");
		var i: Int = 0;
		// Execute loop through by parameter length
		while (i < n)
		{
			// Display parameter value
			println(number[i]);
			i += 1;
		}
	}
}
fun main(args: Array < String > ): Unit
{
	val task: VariableLengthArgs = VariableLengthArgs();
	// Test
	task.example(1, 2, 3);
	task.example(4, 6, 2, 6, 2, 88, 45);
}

Output

Given 3 paramter is
1
2
3

Given 7 paramter is
4
6
2
6
2
88
45
Last updated on by Kalkicode




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