Print numbers from 1 to n using recursion in swift

Swift program for Print numbers from 1 to n using recursion. Here mentioned other language solution.

import Foundation
// Swift 4 program for
// Print numbers from 1 to n using recursion
class Numbers
{
	func printNumber(_ num: Int)
	{
		if (num >= 1)
		{
			// Reduce the number and try again 
			// Until n is greater than zero
			self.printNumber(num - 1);
			// Display calculated result
			print(num, terminator: " ");
		}
	}
	static func main()
	{
		let task: Numbers = Numbers();
		// Test A (1..10)
		var num: Int = 10;
		print("\n (1 to",num,") ", terminator: ": ");
		task.printNumber(num);
		// Test B (1..20)
		num = 20;
		print("\n (1 to",num,") ", terminator: ": ");
		task.printNumber(num);
	}
}
Numbers.main();

Output

 (1 to 10 ) : 1 2 3 4 5 6 7 8 9 10
 (1 to 20 ) : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


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