2. What data type would you use to allow a function to receive an Int or nil value as its parameter? func display(num: ____ ) { if num == nil { print("Not a number") } else { print(num) } } display(num: 5) display(num: nil)
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2. What data type would you use to allow a function to receive an Int or nil value as its parameter?
func display(num: ____ ) {
if num == nil { print("Not a number")
} else {
print(num) }
}
display(num: 5)
display(num: nil)
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- _________ arguments are passed to parameters automatically if no argument is provided in the function call.Lowest Score Drop Write a program that calculates the average of a group of test scores, where the lowest score in the group is dropped. It should use the following functions: void getScore() should ask the user for a test score, store it in a reference parameter variable, and validate it. This function should be called by main once for each of the five scores to be entered. void calcAverage() should calculate and display the average of the four highest scores. This function should be called just once by main and should be passed the five scores. int findLowest() should find and return the lowest of the five scores passed to it. It should be called by calcAverage, which uses the function to determine which of the five scores to drop. Input Validation: Do not accept test scores lower than 0 or higher than 100.my_func is a function as follows. What is the value of a at the end of the code beneath? function a = my_func (a) a = a + 1; end a = 0; for i = 1:3 my func (a); end a = my_func (a);
- Fill-in-the-Blank When used as parameters, _________ variables allow a function to access the parameter’s original argument.____ are declared within the body of a function. (A) Variables (B) Local variables (C) Main functions (D) ArraysUsernames An online company needs your help to implement a program that verifies the username chosen by a new user. Their rules is described below: Username MUST contain at least 6 characters; Username cannot start with a number; Username can only contain letters or numbers. If valid, the username may be resgistered if it doesn't already exist in the system. You should not use built-in functions to determine the character type such as isnumeric() or islower(). Use the strings given alphabet and numeric to determine if each character is valid. Use the list registered to help you determine if the username is already registered. Don't forget to execute the cell below to use these strings # run this cell to create these variablesalphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'numeric = "0123456789"registered = ["john87", "topmage", "light4ever", "username2"] Write a function nameValidation which receives a String argument name. This function: has name String…
- Usernames An online company needs your help to implement a program that verifies the username chosen by a new user. Their rules is described below: Username MUST contain at least 6 characters; Username cannot start with a number; Username can only contain letters or numbers. If valid, the username may be resgistered if it doesn't already exist in the system. You should not use built-in functions to determine the character type such as isnumeric() or islower(). Use the strings given alphabet and numeric to determine if each character is valid. Use the list registered to help you determine if the username is already registered. Don't forget to execute the cell below to use these strings # run this cell to create these variablesalphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'numeric = "0123456789"registered = ["john87", "topmage", "light4ever", "username2"]Void functions do not return any value when they are called.Usernames An online company needs your help to implement a program that verifies the username chosen by a new user. Their rules is described below: Username MUST contain at least 6 characters; Username cannot start with a number; Username can only contain letters or numbers. If valid, the username may be resgistered if it doesn't already exist in the system. You should not use built-in functions to determine the character type such as isnumeric() or islower(). Use the strings given alphabet and numeric to determine if each character is valid. Use the list registered to help you determine if the username is already registered. Don't forget to execute the cell below to use these strings # run this cell to create these variablesalphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'numeric = "0123456789"registered = ["john87", "topmage", "light4ever", "username2"] Write a function registerName which receives a String username and it returns a string message. This…
- Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Write the following functions in the program: • calc_average-This function should accept five test scores as arguments and return the average of the scores. • determine_grade-This function should accept a test score as an argument and return a letter grade for the score based on the following grading scale: Score Letter Grade 90-100 A 80-89 B 70-79 60-69 D Below 60 F A sample run is as follows: Enter test score 1: 75.0 Enter test score 2: 95.0 Enter test score 3: 80.0 Enter test score 4: 90.0 Enter test score 5: 85.0 Your grades are as follows: Test 1: C Test 2: A Test 3: B Test 4: A Test 5 : BCode in Visual basic Write a function named Quotient with 2 Integer parameters (originally from textboxes) and a Double return type. The function should calculate the first parameterdivided by the second and return the resultTest Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Write the following functions in the program: calc_average. This function should accept five test scores as arguments and return the average of the scores. determine_grade. This function should accept a test score as an argument and return a letter grade for the score based on the following grading scale: Score Letter Grade 90–100 A 80–89 B 70–79 C 60–69 D Below 60 F Write the following functions: getTestScore(): This function prompts user for five test scores and returns test score to the caller. calcAverage(): This function accepts five test scores as arguments and returns the average of the five test scores. determineGrade(): This function accepts an average as an argument and returns a letter grade for the score based on the grading scale. displayData(): This method displays all five…