7.2_Working with Varargs

Question 1

What position should a varargs parameter take?

Answer 1

Varargs parameter must be the last element in a method’s parameter list.

Question 2

How many varargs can we have in a parameter list?

Answer 2

You are allowed to have only one varargs parameter per method.

Question 3

What possibilities do we have when calling a method with varargs?

Answer 3

• > We can pass in an array

- > or we can list the elements of the array and let Java create it for us.

Question 4

⚠️🤯️ What happens when no elements/array/null are passed as the varargs argument?

Answer 4

• > Java will create an empty array if no parameters are passed for a vararg. (An array of length 0)
• > However, it is still possible to pass null explicitly -> This could throws a NPE

Question 5

How to access a varargs parameter?

Answer 5

Accessing a varargs parameter is just like accessing an array.