MisterTootor M.S., B.S., A.S., A.S.B
Basic "Hello World" stuff
print("Hello, World!")
Control the Flow
var temperature = 25
if temperature >= 30 {
print("It's hot!")
} else {
print("It's not hot.")
}
for i in 1...5 {
print(i)
}
Options
var optionalName: String? = "John"
if let name = optionalName {
print("Hello, \(name)!")
} else {
print("Hello, stranger!")
}
Error Handling
enum CustomError: Error {
case error1
case error2
}
func doSomething() throws {
throw CustomError.error1
}
do {
try doSomething()
} catch {
print("An error occurred: \(error)")
}
Arrays
var fruits = ["apple", "banana", "orange"]
print(fruits[0]) // Output: apple
A Swift program that computes the sum of two integers, and if the values are equal, it returns three times their sum:f (ChatGPT)
.import Foundation
func computeSum(_ a: Int, _ b: Int) -> Int {
let sum = a + b
if a == b {
return 3 * sum
} else {
return sum
}
}
// Example usage
let result1 = computeSum(3, 5)
print("Result 1: \(result1)") // Output: Result 1: 8
let result2 = computeSum(4, 4)
print("Result 2: \(result2)") // Output: Result 2: 24
Sample Output:
3
5
12
```
### Explanation:
1. The function `computeSum` takes two integers, `a` and `b`, as parameters.
2. It calculates their sum (`sum = a + b`).
3. If `a` and `b` are equal, it returns three times the sum (`3 * sum`).
4. Otherwise, it returns just the sum.
### Example:
- For inputs `3` and `5`, the program returns `8` (since they are not equal).
- For inputs `4` and `4`, the program returns `24` (since they are equal, it returns three times the sum).
How the swift programming language can be programmed for an Iphone (ChatGPT)
import UIKit
class ViewController: UIViewController {
// This action is connected to the button press
@IBAction func showAlert(_ sender: UIButton) {
// Create an alert
let alert = UIAlertController(title: "Hello!", message: "This is your first iOS app.", preferredStyle: .alert)
// Add an OK button to the alert
alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
// Present the alert
self.present(alert, animated: true, completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
// Additional setup after loading the view
}
}
Sample Output:
You'll see a "Hello!" message and an "OK" button when you tap on the button that pops up.
fA Swift program to compute and return the absolute difference of n and 61, if n is over 61 return double the absolute difference.(ChatGPT)
import Foundation
func computeAbsoluteDifference(n: Int) -> Int {
let difference = abs(n - 61) // Calculate the absolute difference
if n > 61 {
return 2 * difference // Double the difference if n is greater than 61
} else {
return difference // Return the absolute difference if n is less than or equal to 61
}
}
// Test the function with some examples
let result1 = computeAbsoluteDifference(n: 50)
print("Result 1: \(result1)") // Output: 11 (since 61 - 50 = 11)
let result2 = computeAbsoluteDifference(n: 70)
print("Result 2: \(result2)") // Output: 18 (since (70 - 61) * 2 = 18)
let result3 = computeAbsoluteDifference(n: 61)
print("Result 3: \(result3)") // Output: 0 (since the difference is 0)
Example Outputs:
-
For n = 50: The absolute difference is |50 - 61| = 11.
-
For n = 70: The absolute difference is |70 - 61| = 9, and since n > 61, the result is 9 * 2 = 18.
-
For n = 61: The absolute difference is |61 - 61| = 0.
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