Homework Help is Here – Start Your Trial Now!
Engineering
Computer Engineering
App Exercise - Workout or Nil | Note These exercises reinforce Swift concepts in the context of a fitness tracking app. Have you ever accidentally tapped a button in an app? It's fairly common. In your fitness tracking app, you decide that if a user accidentally taps a button to start a workout and then ends the workout within 10 seconds, you simply don't want to create and log the workout. Otherwise the user would have to go delete the workout from the log. Create a Workout struct that has properties startTime and endTime of type Double. Dates are difficult to work with, so you'll be using doubles to represent the number of seconds since midnight, i.e. 28800 would represent 28,800 seconds, which is exactly 8 hours, so the start time is 8am. Write a failable initializer that takes parameters for your start and end times, and then checks to see if they are fewer than 10 seconds apart. If they are, your initializer should fail. Otherwise, they should set the properties accordingly. Try to initialize two instances of a Workout object. Unwrap each of them and print its properties. One of them should not be initialized because the start and end times are too close together. The other should successfully initialize a Workout object.

App Exercise - Workout or Nil | Note These exercises reinforce Swift concepts in the context of a fitness tracking app. Have you ever accidentally tapped a button in an app? It's fairly common. In your fitness tracking app, you decide that if a user accidentally taps a button to start a workout and then ends the workout within 10 seconds, you simply don't want to create and log the workout. Otherwise the user would have to go delete the workout from the log. Create a Workout struct that has properties startTime and endTime of type Double. Dates are difficult to work with, so you'll be using doubles to represent the number of seconds since midnight, i.e. 28800 would represent 28,800 seconds, which is exactly 8 hours, so the start time is 8am. Write a failable initializer that takes parameters for your start and end times, and then checks to see if they are fewer than 10 seconds apart. If they are, your initializer should fail. Otherwise, they should set the properties accordingly. Try to initialize two instances of a Workout object. Unwrap each of them and print its properties. One of them should not be initialized because the start and end times are too close together. The other should successfully initialize a Workout object.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
See similar textbooks
icon
Related questions
Question

App Exercise - How do I do this practice exercise using Swift code? Please find an image attached.

 

App Exercise - Workout or Nil Note These exercises reinforce Swift concepts in the context of a fitness tracking app. Have you ever accidentally tapped a button in an app? It's fairly common. In your fitness tracking app, you decide that if a user accidentally taps a button to start a workout and then ends the workout within 10 seconds, you simply don't want to create and log the workout. Otherwise the user would have to go delete the workout from the log. Create a Workout struct that has properties startTime and endTime of type Double. Dates are difficult to work with, so you'll be using doubles to represent the number of seconds since midnight, i.e. 28800 would represent 28,800 seconds, which is exactly 8 hours, so the start time is 8am. Write a failable initializer that takes parameters for your start and end times, and then checks to see if they are fewer than 10 seconds apart. If they are, your initializer should fail. Otherwise, they should set the properties accordingly. Try to initialize two instances of a Workout object. Unwrap each of them and print its properties. One of them should not be initialized because the start and end times are too close together. The other should successfully initialize a Workout object.
Transcribed Image Text:App Exercise - Workout or Nil Note These exercises reinforce Swift concepts in the context of a fitness tracking app. Have you ever accidentally tapped a button in an app? It's fairly common. In your fitness tracking app, you decide that if a user accidentally taps a button to start a workout and then ends the workout within 10 seconds, you simply don't want to create and log the workout. Otherwise the user would have to go delete the workout from the log. Create a Workout struct that has properties startTime and endTime of type Double. Dates are difficult to work with, so you'll be using doubles to represent the number of seconds since midnight, i.e. 28800 would represent 28,800 seconds, which is exactly 8 hours, so the start time is 8am. Write a failable initializer that takes parameters for your start and end times, and then checks to see if they are fewer than 10 seconds apart. If they are, your initializer should fail. Otherwise, they should set the properties accordingly. Try to initialize two instances of a Workout object. Unwrap each of them and print its properties. One of them should not be initialized because the start and end times are too close together. The other should successfully initialize a Workout object.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY
SEE MORE TEXTBOOKS