1. When user create an instance from a class, which of following is called first?

Main method

Constructor

Instantiate Method

Destructor

2. Enumeration is a set of constants, and all the integer types could be used for the enum type. If the type is left out, which type will be used by default?

uint

byte

long

int

3. Which of the following towards value type and reference type is FALSE?

Class is reference type, and struct is value type.

Both reference type and value type can be assign value of null.

String is reference type

Variable of value type is copied when passing through function.

4. Which of the following towards List class is FALSE?

List is a generic class.

The capacity of the List can be changed.

The Length property can be used to get the number of elements in the List.

The RemoveAt Method can be used to delete an element in a certain index in the List.