Swift program to convert a string into a number using Int() function

Program/Source Code:

The source code to convert a string into a number is given below. The given program is compiled and executed successfully.

// Swift program to convert a string 
// into a number

import Swift

var strCode:String = "108"

if let num = Int(strCode) {
    print("Number is: ",num)
}

Output:

Number is:  108

...Program finished with exit code 0
Press ENTER to exit console.

Explanation:

In the above program, we imported a package Swift to use the print() function using the below statement,

import Swift;

To use mathematics and some standard functions, we need to import the foundation package using the below statement,

import Foundation;

Here, we created a numeric string strCode with the initial value "108". Then we converted the string using Int() function and printed the result on the console screen.