Basic C# Questions

Front 1

What are the three types of comments in C#?

Back 1

Answers:

1.Single line (//)

2.Multi (/* */)

3.Page/XML Comments (///).

Front 2

What is Serialization?

Back 2

Answer:
Serialization is the process of converting an object into a stream of bytes.

Front 3

What is De-serialization?

Back 3

Answer:

De-serialization is the process of creating an object from a stream of bytes.

Front 4

What does Public mean?

Back 4

Answer:

Public declared variables or methods are accessible anywhere in the application.

Front 5

What does Static mean?

Back 5

Answer:

The keyword static declares that the variables or methods are globally accessible without creating an instance of the class.

Front 6

What does Void mean?

Back 6

Answer:

The keyword void is a type modifier that states that the method or variable does not return any value.

Front 7

Is C# managed or unmanaged code?

Back 7

Answer:

C# is managed code.

Front 8

What is an Interface?

Back 8

Answer:
An interface is a file that can hold method declarations, but nothing else. They can be inherited from, and the child class can implement its methods.

Front 9

Does C# support Multiple Inheritence?

Back 9

Answer:

With C#, you may inherit from multiple interfaces, but you may only inherit from one class.

Front 10

What is a Delegate?

Back 10

Answer:

A Delegate allows you to pass a method of one class to objects of another class that can call these methods. Think C++ function pointers;

Front 11

What is an ArrayList?

Back 11

Answer:

An ArrayList is a dynamic array of elements. Think C++ Vectors.

Front 12

What is a Sealed Class?

Back 12

Answer:

Using the "Sealed" keyword on a class prevents that class from being derived from.

Front 13

What is the difference between the Stack and the Heap?

Back 13

Answers:

The Stack is a Static block of memory, used to store parameters, local variables, etc. The Stack fluctuates in size as functions enter and exit the stack.

The Heap is a Dynamic block of memory that is used to store objects, such as static fields, constants, etc. The Heap takes care of the creation and storage of objects.