Q1_OOP

A method in C# is primarily used to:

• Store data

• Encapsulate code to perform tasks

• Declare variables

• Format output

What’s the correct way to call a method named sayHello()?

• sayHello;

• sayHello()

• sayHello[]

• call sayHello()

In the simple sayHello() example, how many times is sayHello() called?

• 1

• 2

• 3

• 0

What keyword is used to make a method return a value?

• exit

• stop

• return

• yield

If add(int a, int b) returns the sum, what’s the return type?

• void

• int

• string

• float

Which of the following is an example of method overloading?

• Defining two methods with the same name but different parameters

• Using static and public modifiers together

• Calling a method from another method

• A method that returns another method

What happens when subtract(2, 5) is called in the example?

• Outputs 7

• Outputs -3

• Outputs 5

• Outputs 2

What will the makeName(string firstName, string lastName) method return when called with "David" and "SDPT"?

• "DavidSDPT"

• "SDPT David"

• "David SDPT"

• "David, SDPT"

What keyword indicates a method doesn’t return any value?

• void

• null

• empty

• none

When passing an array to a method like add(int[] number), what must the method likely do with that array?

• Iterate through it and sum elements

• Print each element individually

• Modify its length

• Convert it to a string