Methods Practice

Complete the following exercises in a main.cs file.

Reference

Remember the syntax for defining and calling methods:

Defining

public static <<returntype>> <<methodname>>(<<parameters>>)
{

}

Example

public static string MyMethodName(string myInput)
{

}

Calling

<<methodname>>(<<arguments>>);

Example

string myString = "StringVal";

MyMethodName(myString);

Complete the following exercises to practice using methods!

Print Hat

1. Define a new method named PrintHat in the main.cs file
   • The method should take in no parameters
   • The method should return void (nothing)
2. In the body of the PrintHat method, use 6 Console.WriteLine statements to print the following ASCII hat:

       .--------.
      /          `.
     |         .-. .
     |         |  `.|
     |_________|   <|>
    (___________)
   

3. In the body of the Main method, call the PrintHat method a few times to see multiple hats appear!

Inches to Centimeters

1. Define a new method named InToCm in the main.cs file
   • The method should take in no parameters
   • The method should return a double (the value in centimeters)
2. In the body of the InToCm method, ask the user for a measurement in inches using Console.ReadLine
   • Convert the number to a double type using Convert.ToDouble
   • Store the double in a new variable named inches
3. Define a new double variable named centimeters, and set its value to the value of inches multiplied by 2.54
4. Return the new centimeters variable at the end of the method
5. In the body of the Main method, call the InToCm method
6. Store the returned value in a new variable named centimeters
   • Note that this centimeters variable and the centimeters variable from the InToCm method are different
7. Display a message to the user saying the value in centimeters
   • Ex: If the user entered 2, display "5.08 cm"
   • Ex: If the user entered 2.1, display "5.334 cm"

Hi Name

1. Define a new method named HiName in the main.cs file
   • The method should take in no parameters
   • The method should return a string (the message)
2. In the body of the HiName method, ask the user to input their name, and store their input in a variable
3. Return a greeting of "Hi, {name}"
   • Ex: If the user enters "Alice", return "Hi, Alice"
   • Ex: If the user enters "Alex", return "Hi, Alex"
4. Call the HiName method from within the MainMethod, and store the returned message in a variable
5. Display the returned message to the user

Password Check

1. Define a new method named PasswordCheck in the main.cs file
   • The method should take in a string (the password to check) as a parameter
   • The method should return void (nothing)
2. In the body of the PasswordCheck method, use an if statement to check if the password is equal to your password
3. If the password is correct, print a message saying "Correct Password"
4. Otherwise, if the password is incorrect, print a message saying "Incorrect Password"
5. In the Main method, ask the user to enter their password, and store their input in a variable
6. Call the PasswordCheck method on the user's input to see if it is correct or incorrect!

(CHALLENGE) Coupon Code

The goal of this method is to calculate the final price of a service depending on a coupon code.

1. Define a new method named CouponCode in the main.cs file
   • The method should take in a double (the initial price) and a string (the coupon code) as parameters
   • The method should return a double (the final price)
2. In the body of the CouponCode method, check if the value of the coupon code is "PUNCH"
   • If it is, return the initial price with a 15% discount applied
3. Check if the value of the coupon code is "HANDBOOK"
   • If it is, return the initial price with a 25% discount applied
4. Check if the value of the coupon code is "FREE"
   • If it is, return the initial price with a 100% discount applied
5. In body of the Main method, ask the user to input their initial price
   • Convert the string value to a double and store it in a variable
6. In Main, under the initial price, ask the user to input their coupon code
   • Store it in a variable
7. Call the CouponCode method, passing in the initial price and coupon code
   • Store the returned value in a new double variable
8. Display a message to the user with the final price after the coupon

Extra Challenge

In the body of the CouponCode method, instead of using if statements, use a switch!

Reference: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/switch