Swift Program to read integer from user and print (Type 2)

Program

print("Enter an Integer Number:")
let inputNumber = Int(readLine()!)
var a:Int = 0
if let inputNumber = inputNumber {
    a = inputNumber
}
print("Value entered by user:\t\(a)")

Output

$ swift read_integer_from_user.swift 
Enter an Integer Number:
58
Value entered by user:  58