Workbook 4.2

From the Java Bootcamp Resources, launch the Workbook 4.2 folder.

Tip the waiter.

Your bill was $53.50. It's polite to tip the waiter 15% of your bill.

Task 1 - Write a function

You will write a function that does this task.

• Function name: tipTheWaiter. It calculates a tip and prints it.

/**
 *  Function name: tipTheWaiter - calculates a tip and prints it. <-----
 *  @param bill (double).
 *
 * Inside the function:
 *  1. Calculates a tip that's 15 percent of the bill you paid.
 *  2. Prints: your service was wonderful! Please, accept this tip: $<tip>
 *
 */

• Parameters: The function takes one parameter named bill of type double.

/**
 *  Function name: tipTheWaiter - calculates a tip and prints it.
 *  @param bill (double). <-----
 *
 *  Inside the function:
 *   1. Calculates a tip that's 15 percent of the bill you paid.
 *   2. Prints: your service was wonderful! Please, accept this tip: $<tip>
 *
 */

• Return value: the comment says nothing about a return value. So, you can assume the function is void.

• Inside the function, implement the following logic:

/**
 *  Function name: tipTheWaiter - calculates a tip and prints it.
 *  @param bill (double).
 *
 *  Inside the function:   <-----
 *   1. Calculates a tip that's 15 percent of the bill you paid.
 *   2. Prints: your service was wonderful! Please, accept this tip: $<tip>
 *
 */

Task 2 - Call the function

Call the function from main().

Run your code.

Waiter: I hope you enjoyed your meal!

Thank you!
Your service was wonderful! Please, accept this tip: $8.025

Visualizing the Runtime

After you solve this workbook, I still recommend watching the video solution on Udemy.

It will show you how to visualize the runtime using Visual Studio Code.

Associated Course: The Complete Java Development Bootcamp

Related Course: The Complete Spring Boot Development Bootcamp – Become a Java Web Developer