Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

undefined Question 5 5 pts Given the following in Swift: struct Kilometers { var kilometers: Double init(from Miles miles: Double) { kilometers = miles *

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedundefined

Question 5 5 pts Given the following in Swift: struct Kilometers { var kilometers: Double init(from Miles miles: Double) { kilometers = miles * 1.60934 } init(from Meters meters: Double) { kilometers = meters / 1000.0 } } Which of the following is the correct way to create an instance of the struct if the known distance is in miles? let distance = Kilometers(from Miles: 2.5) let distance = Kilometers(miles: 2.5) let distance = new Kilometers(from Miles: 2.5) Olet distance = new Kilometers(miles: 2.5) let distance =Kilometers(2.5 as miles) Given: struct Circle { var radius = 0.0 var x = 0.0 var y = 0.0 } Which of the following is the correct line of Swift code for creating an instance of a Circle with a radius of 5.0 and a position of x = 2.3 and y = 7.1? let circle = new Circle(5.0, 2.3, 7.1) let circle = new Circle(radius: 5.0, x: 2.3, y: 7.1) let circle = Circle(5.0, 2.3, 7.1) let circle = Circle(radius: 5.0, x: 2.3, y: 7.1) Question 12 5 pts Objects are comprised of data variables and functions. The data variables and functions are referred to as class members. Which of the following is the name used for data variables in an object? methods O optionals O properties O characteristics Question 13 5 pts Which of the following is the correct way in Swift to define a class Dog that inherits from Pet? class Dog extends Pet { } class Dog, Pet class Dog : Pet {} class Dog as Pet { } Question 18 5 pts Given: struct Size { var width = 0.0, height = 0.0 } let size1 = Size() Is the following allowed? size1.width = 12.4 No Yes Question 19 5 pts Given: struct Point { var x = 0.0, y = 0.0 } var point1 = Point() Which of the following is used to set the x property of point1 to 7.1 in Swift? point1->x = 7.1 point1.x = 7.1 point1.setX(7.1) point1["x"] = 7.1 Question 20 5 pts In order to make any changes made to a parameter persist after a function has returned, the parameter must be declared using the keyword. Parameters passed to a function that are declared without the keyword cannot have their values changed by the function

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Microsoft Visual Basic 2005 For Windows Mobile Web Office And Database Applications Comprehensive

Authors: Gary B. Shelly, Thomas J. Cashman, Corinne Hoisington

1st Edition

0619254823, 978-0619254827

More Books

Students also viewed these Databases questions