通過Fast2test你可以獲得最新的關於Apple App-Development-with-Swift-Certified-User 認證考試的練習題和答案。請早點擁有它把，它能讓你通過你的第一次參加的Apple App-Development-with-Swift-Certified-User 認證考試。目前最新的Apple App-Development-with-Swift-Certified-User 認證考試的考試練習題和答案是Fast2test獨一無二擁有的。
| Section | Objectives |
|---|---|
| Topic 1: App Logic and Data Handling | - Data management in apps
|
| Topic 2: App Lifecycle and Deployment Concepts | - Understanding app structure
|
| Topic 3: User Interface Development | - Building iOS interfaces
|
| Topic 4: Introduction to App Development with Swift | - Swift programming fundamentals
|
>> App-Development-with-Swift-Certified-User題庫分享 <<
我們Fast2test Apple的App-Development-with-Swift-Certified-User考試 的問題包含了完整的無限制的轉儲，所以你很容易的通過考試，不管你是通過你的產品合格證或是其他當今流行的身份驗證，完美的展現Fast2test Apple的App-Development-with-Swift-Certified-User考試培訓資料的長處，這不僅僅是依靠，也是指導，這其實是最好的，你可以使用Fast2test Apple的App-Development-with-Swift-Certified-User考試 培訓資料裏的問題和答案通過考試，獲得Apple的App-Development-with-Swift-Certified-User考試認證。
問題 #36
You are creating or updating human resource records for your employees. For each identifier, select whether it is a Constant or a Variable Note: You will receive partial credit for each correct answer.
答案：
解題說明：
Explanation:
* age - Variable
* birthDate - Constant
* socialSecurityNumber - Constant
* salary - Variable
* currentDepartment - Variable
This question belongs to Swift Programming Language , specifically the objective on demonstrating when to use constants and variables . In Swift, a constant is declared with let and is used for values that should not change after they are set. A variable is declared with var and is used for values that may change over time.
Birth date is a constant because a person's date of birth does not change. Social security number is also a constant because it is intended to be a fixed identifier for that employee record. By contrast, age is a variable because it changes over time. Salary is a variable because compensation can be adjusted. Current department is also a variable because an employee may transfer to another department.
This matches Swift best practice: use let for fixed data and var for mutable data. So in a human resources record, identifiers that are permanent should be constants, while values that can change during employment should be variables.
問題 #37
Review the code snippet.
The " faces " dictionary contains emojis and their descriptions.
Which code will create an array named " emo)is " that will copy all the emojis from the " faces " dictionary?
答案：B
解題說明：
This question belongs to Swift Programming Language , specifically the objective on managing data using collection types , including dictionaries and arrays . In the dictionary shown, the emojis are the keys and the text descriptions are the values . Swift provides a keys property on dictionaries that returns a collection containing all dictionary keys. To convert that keys collection into an array, you use the Array(...) initializer.
Therefore, the correct code is let emojis = Array(faces.keys). Apple documents both the Dictionary.keys property and the Array type used to store a sequence of values of the same type.
Option B is incorrect because faces.values would return the descriptions like " grinning " , " thinking " , and " happy " , not the emoji keys. Options A and C are incorrect because List is a SwiftUI view type, not the correct collection type for creating an array from dictionary contents. Also, the dictionary interface uses properties like .keys and .values, not method calls like .keys() or .values(). Apple's dictionary documentation makes clear that keys is a property returning a collection of the dictionary's keys.
問題 #38
Which code correctly creates a size 300 rectangular Image View with rounded corners that displays the entire image, regardless of size?
答案：B
解題說明：
This question belongs to View Building with SwiftUI , specifically the objective on positioning and laying out a single SwiftUI view with standard views and modifiers.
The correct answer is D because it uses the right combination of SwiftUI image modifiers for all three requirements:
* the image is made resizable with .resizable()
* it is given rounded corners with .clipShape(RoundedRectangle(cornerRadius: 50))
* it displays the entire image with .aspectRatio(contentMode: .fit)
* it is sized with .frame(width: 300)
The key part is .aspectRatio(contentMode: .fit) . In SwiftUI, .fit scales the image so the whole image remains visible inside the available frame. That matches the requirement "displays the entire image, regardless of size." By contrast, .fill may crop part of the image, so options using .fill do not satisfy the requirement.
Why the others are wrong:
* Option A uses .fill, so the full image may not remain visible.
* Option B uses invalid modifiers such as .sizablc() and .size(width: 300), and also uses Rectangle (cornerRadius: 50), which is not the correct rounded-rectangle shape syntax.
* Option C also uses invalid syntax and .fill, which can crop the image.
* Option D uses valid SwiftUI syntax and the correct content mode.
So the correct choice is D , because it is the only option that correctly creates a 300-width image with rounded corners while ensuring the entire image is shown.
問題 #39
Review the code snippet.
The code snippet does not compile.
Which two actions will fix the errors? (Choose 2.)
答案：A,E
解題說明：
This question belongs to Swift Programming Language , especially the domains covering basic Swift types
, operators , and constants versus variables .
There are two compile problems in the snippet. First, unitPrice and shipping are inferred as Double, while quantity is inferred as Int. In Swift, arithmetic operands must have compatible types; Swift does not automatically mix Int and Double in one arithmetic expression. So unitPrice * quantity fails unless quantity is changed to Double or explicitly converted. That makes A a correct fix.
Second, the line totalCost += ... uses the compound assignment operator +=, which stores a new value back into the left-hand side. Swift requires the left-hand side of += to be mutable, so totalCost must be declared with var, not let. That makes D the second correct fix.
The other choices do not solve the actual compile issues. B is unnecessary because totalCost is already explicitly declared as Double, so 0 is valid there. C would still leave shipping as Double, so the mixed-type arithmetic problem remains. E is irrelevant because shipping is never reassigned. Therefore, the two correct answers are A and D
問題 #40
When you press ' Show Button ' on your app. a modal View appears.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct answer.
答案：
解題說明：
Explanation:
This question belongs to View Building with SwiftUI , specifically the domain on creating a multi-view app with navigation stacks, links, and sheets .
To present a modal view in SwiftUI when a Boolean state changes, the correct modifier is .sheet . The matching sheet API for a Boolean binding is:
sheet(isPresented: $showInfo) {
// modal content
}
So the first blank must be .sheet , and the second blank must be (isPresented: .
The logic works like this:
* @State stores the local Boolean that controls presentation.
* Pressing the button calls showInfo.toggle(), changing the value from false to true.
* When that Boolean becomes true, the .sheet(isPresented:) modifier presents the modal view.
* When the modal is dismissed, SwiftUI updates the Boolean back as needed.
There is also a typing issue in the screenshot: the state variable appears as ShowInfo, while the button and binding use showInfo. Swift is case-sensitive, so those names must match. The corrected code should use the same identifier consistently, such as:
@State var showInfo = false
Therefore, the correct dropdown selections are:
sheet
(isPresented:
問題 #41
......
有很多方法，以備你的 Apple的App-Development-with-Swift-Certified-User的考試，本站提供了可靠的培訓工具，以準備你的下一個Apple的App-Development-with-Swift-Certified-User的考試認證，我們Fast2test Apple的App-Development-with-Swift-Certified-User的考試學習資料包括測試題及答案，我們的資料是通過實踐檢驗的軟體，我們將滿足所有的有關IT認證。
App-Development-with-Swift-Certified-User認證指南: https://tw.fast2test.com/App-Development-with-Swift-Certified-User-premium-file.html