> For the complete documentation index, see [llms.txt](https://ios-course.cornellappdev.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ios-course.cornellappdev.com/course-content/week-2-or-uikit-mvc-and-control/monday-or-uikit.md).

# Monday | UIKit

<details>

<summary>Classes Demo Code</summary>

```swift
class Student {
    // Properties
    var name: String
    var major: String
    var age: Int

    // Initializer
    init(name: String, major: String, age: Int) {
        self.name = name
        self.major = major
        self.age = age
    }
}

// Creating an instance of Student
let jay = Student(name: "Jay", major: "CS", age: 67)
// Access properties like below
jay.name
jay.major
jay.age

// NOTE: the super class of `EngineeringStudent` is `Student`
class EngineeringStudent: Student {
    // Inherits all properties and function from 'Student'
    // Define more properties
    var doesShower: Bool

    init(name:String, major:String, age: Int, doesShower: Bool) {
        self.doesShower = doesShower // Initalize property specific to this class
        super.init(name: name, major: major, age: age) // Call the super class's initializer
    }
}

// Creating an instance of EngineeringStudent
let asen = EngineeringStudent(name: "Asen", major: "CS", age: 22, doesShower: false)
asen.doesShower // This works fine since asen is an EngineeringStudent
jay.doesShower  // This DOESN'T work since jay is a Student. `doesShower` 
                //    is a property of EngineeringStudent but not Student
```

</details>

<details>

<summary>UIKit Follow-Along</summary>

{% embed url="<https://github.com/intro-to-ios/lec2-uikit>" %}
If you prefer to download the ZIP, go to Code > Download ZIP in the Github Repository website.
{% endembed %}

## Using git in Terminal

#### 1. Clone the Repository

<pre class="language-sh"><code class="lang-sh"><strong>git clone https://github.com/intro-to-ios/lec2-uikit
</strong></code></pre>

#### 2. Checkout Branches

* **If you fall behind during demo**
  * **restore** using "git restore ."&#x20;
    * or stash using "git stash"
  * then checkout a completed code to start the next demo

```zsh
## Completed UI Label Code
git checkout 1-uilabel
```

```zsh
## Completed UIImageView Code
git checkout 2-uiimageview
```

</details>

### Lecture Slides

{% embed url="<https://docs.google.com/presentation/d/1hfOS2ko47X6RBvBHj7pUiCPKQtwjQBRwtKTQtitcn04/edit?usp=sharing>" %}

### Spring 2026 Lecture Video

{% embed url="<https://www.youtube.com/watch?list=PLjf6nsEcF5KN3xI48VwrmWMPmlmuAxU2x&v=Iu_1z976niU>" %}