Methods 1 - The Restaurant

The Restaurant

Void Methods with Parameters

Important Reminder:

For this assignment, all functions are VOID functions. You should not be using the word return at all.

As you can no doubt tell, in his younger days Mr. Couprie was a big hit with the ladies. This assignment is dedicated to the good old days when he would spend nights out with friends and would work his magic on the women he would meet.

Create a new Java file called Assign3_Restaurant.

The RUN Method

The exact run() method you must use is copied below. You may NOT deviate from this set up except where it specifically gives you the option to do so. Note that much of the code is commented out. Get each method working (described further down) before uncommenting the next one.

class Assign3_Restaurant {

public static void run() {

double mainSubtotal;

int numPeople;

String firstName;

String phoneNumber;

System.out.println("Welcome to Cafe Couprie, what is your first name so that I may check your reservation?");

firstName = Library.wordscan.nextLine();

System.out.println("Thank you. What is your phone number?");

phoneNumber = Library.wordscan.nextLine();

System.out.println("And how many people are in your party?");

numPeople = Library.numscan.nextInt();

System.out.println("Thank you " + firstName + ". Please enjoy our meal." );

System.out.println();

System.out.println("I hope you enjoyed your meal?");

System.out.println("What is the subtotal?");

mainSubtotal = Library.numscan.nextDouble();

//splitBill(mainSubtotal, numPeople);

//sing(firstName) //this was wrong in original version

hitOn(firstName, phoneNumber);

//int weight;

//System.out.println("Um, that’s your boyfriend/girlfriend!? How much does he/she weigh?");

//weight = Library.numscan.nextInt();

//apologize(weight);

}//end run

//your methods go here.

}//end class

You will notice that there are 5 variables in main

mainSubtotal - This number represents the amount of the bill before tax and tip. You will be passing it as a parameter when appropriate.
numPeople - This is the number of people in your party.
firstName - Your name
phoneNumber - Your phone number
weight - This will be explained later

Once you have copied in the main method, test that the scanners are working.

Method 1: Split Bill

public static void splitBill(double amount, int numPeople){ }

Notice that this void method takes in the total of a bill as a DOUBLE parameter AND the number of people at the table.
Write the inside of the method so that it then divides the total up evenly, stating how much each has to pay. It assumes everyone pays an equal share.
The only thing the user should see is a printout like the following:

Each person in your party owes $___

Method 2: Sing (aka Happy Birthday)

public static void sing (String name){ }

Notice that this void method takes in the name of the user as a parameter.
Write the inside of the method so that it sings (prints) the entire Happy Birthday song, using their name in the usual place.

Happy Birthday to you. Happy Birthday to you.

Happy Birthday dear Jerry.

Happy Birthday to you.

Method 3: HitOn (Asking the waiter/waitress for a date)

public static void hitOn(String name, String phone){ }

Notice that this void method takes in the two STRING parameters: a name and a phone number.
Remember that these are the user’s name, not the waiter/waitress’ name.
Write the inside of the method so that it prints your best pickup lines using these parameters.
For example, if your name is Bob and your phone number was 555-5555, it prints something like the following:

Well hello there handsome (or insert your best pick up line here)

My name is Bob and you should call me at 555-5555.

Method 4: Apologize

public static void apologize(int pounds){ }

Oh no! Hitting on the waiter/waitress was a bad idea as her partner is here!
Notice that this void method takes in one parameter: the boyfriend’s or girlfriends weight in pounds.
Write the inside of the method so that using a FOR loop, it says SORRY the equivalent number of times. (200 pounds prints SORRY 200 times)
Notice that the run method already has code to ask for the weight of the boyfriend/girlfriend.
Need a hint? Try to figure it out on your own but if you need a hint, scroll down to the end of this doc.

Final 10% - Add a Tip Calculator

Create a method that takes in the subtotal and number of people as parameters
Within the method, asks and scans for a tip percentage. (Note, you do this inside the method not back in main).
Calculates the tip each person owes.
Use this method at an appropriate time in your program by calling it from run().

Here is a sample run imagining 4 people and a $200 bill.

What percentage do you want to tip?

Your total tip is $30. Each person owes $7.50 for the tip.

Hint for Apologize Method:

You only need 2 lines inside the function. One is a FOR loop. The other is a println that says Sorry.

The trick is figuring out what the FOR loop needs to look like.

Teacher use only

//100% - Methods are properly declared and called. Good coding throughout.

//Quality pick up line used

//95% - Methods are properly declared and called. Minor lapses in good coding cost you full marks.

//90% - Methods are properly declared and called. Multiple lapses in good coding cost you top marks.

//Quality pick up line used

//80% - Only three of four methods completed. Good coding throughout.

//70% - Only three of four methods completed. Multiple lapses in good coding cost you marks.

//Poor pick up line used. You better up your game or you will lead a lonely life.