Problem Set 4

Problem Set 4 challenges your ability to declare and use simple variables and mathematical operators available in JavaScript.

Getting Started

To get started, you'll need to create a GitHub repository to store your Problem Set 4 code. After cloning my skeleton repository, you'll need to setup a remote to push your code to your repository instead of mine. Steps to accomplish this are outlined below.

Setup

1. Login to your GitHub account and create a new repository named problem-set-4.
2. In GitBash, navigate to your APCSP folder.
3. Clone my skeleton repository from GitHub. This will make a copy of my repository and store it locally.

git clone [email protected]:rwilson-ucvts/principles-pset-4-skeleton.git

4. The cloning process will have created a folder named principles-pset-4-skeleton. Rename this folder to pset4.

mv principles-pset-4-skeleton pset4

5. Change directories to get into your pset4 folder.

cd pset4

6. Originally, the remote will be pointing at my repository. We need to overwrite this.

git remote rename origin upstream

7. Lastly, we need to add a new remote that points at the repository you created earlier. Make sure you replace YOUR-USERNAME with your actual username.

git remote add origin [email protected]:YOUR-USERNAME/problem-set-4.git

8. Launch Atom and select File > Add Project Folder....
9. Navigate to your pset4 directory and click Open.

Exercises

Problem Set 4 contains 10 exercises, each of which will be written in separate functions. There are several segments of code that should not be modified. They will help you to implement and test your solutions.

Exercise 1 (Hello.)

Write a function to display Hello, AP Computer Science Principles! in the paragraph provided in the HTML template file. There should be no user input for this exercise. Test your code by clicking the Hello button.

Exercise 2 (Hello, Again.)

Write a function to ask the user to enter his or her name, and display a message in the paragraph provided in the HTML template file. The message should read Hello, <NAME>!, where <NAME> is the name the user entered. Test your code by clicking the Hello, Again button.

Exercise 3 (Celsius.)

Write a function to convert a randomly generated Celsius temperature to an equivalent Fahrenheit temperature. The Celsius temperature will be within the range [-100, 1000], and will be rounded to 2 decimals. Your converted Fahrenheit temperature should also be rounded to 2 decimals. Test your code by clicking the Celsius button.

Exercise 4 (Fahrenheit.)

Write a function to convert a randomly generated Fahrenheit temperature to an equivalent Celsius temperature. The Fahrenheit temperature will be within the range [-100, 1000], and will be rounded to 2 decimals. Your converted Celsius temperature should also be rounded to 2 decimals. Test your code by clicking the Fahrenheit button.

Exercise 5 (Inches.)

Write a function to convert a number of inches into an equivalent number of miles, yards, feet, and inches. Use a greedy algorithm, meaning you should use as many of the larger units of distance as you can (i.e., miles, yards, feet, and inches, in that order). Report each unit's value on its own line. Test your code by clicking the Inches button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Exercise 6 (Centimeters.)

Write a function to convert a number of centimeters into an equivalent number of kilometers, meters, and centimeters. Use a greedy algorithm, meaning you should use as many of the larger units of distance as you can (i.e., kilometers, meters, and centimeters, in that order). Report each unit's value on its own line. Test your code by clicking the Centimeters button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Exercise 7 (Fluid Ounces.)

Write a function to convert a number of fluid ounces into an equivalent number of gallons, quarts, pints, cups, and fluid ounces. Use a greedy algorithm, meaning you should use as many of the larger units of volume as you can (i.e., gallons, quarts, pints, cup, and fluid ounces, in that order). Report each unit's value on its own line. Test your code by clicking the Fluid Ounces button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Exercise 8 (Ounces.)

Write a function to convert a number of ounces into an equivalent number of tons, pounds, and ounces. Use a greedy algorithm, meaning you should use as many of the larger units of weight as you can (i.e., tons, pounds, and ounces, in that order). Report each unit's value on its own line. Test your code by clicking the Ounces button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Exercise 9 (Money.)

Write a function to convert a number of ounces into an equivalent number of tons, pounds, and ounces. Use a greedy algorithm, meaning you should use as many of the larger units of weight as you can (i.e., tons, pounds, and ounces, in that order). Report each unit's value on its own line. Test your code by clicking the Money button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Exercise 10 (Change.)

Write a function to ask the user for a dollar amount less 1.00 (leading zeroes are required, but dollar signs should be omitted). Display the fewest number of coins (quarters, dimes, nicks, and pennies) with which the change can be made. Test your code by clicking the Change button.

As a hint, you might find the built-in Math object helpful when solving this problem.

Deadline

Your Canvas submission is due at or before 11:59pm on Monday, November 19, 2018.

Submission Requirements

All that is required for submission is the public URL to your GitHub repository for this problem set. If you forgot how to create a public URL for your repository, reread the original instructions from Problem Set 3¾.