# C# Classes ,Objects and Methods.

A class in C# is a blueprint of an object that  is made up of behaviors known as methods. For example a person can be a class and a person walks or talks that's the behavior of the person in this case a method. 
Classes in C# are represented by the **class** keyword.
```
class Person{
public string name;
public string gender;
public int age;
}
``` 

A method describes the behavior of a class .Add () at the end to represent the method
For example:

```
walk()
Talk()
``` 
** Object** is an instance of a class. In the class Person we could have personA or PersonB with the attributes name , gender and age from the person class.
Objects are instantiated by the** new **keyword. To access the fields in a class in this case (*name,gender,age*) use the dot notation(.) .

```
var personA = new Person();
```
> acess the fields in the class use the dot notation
``` 
personA.name ="Mary";
personA.gender="female";
personA.age = 23;
```
> Create another object of personB
```
var personB = new Person();
personB.name ="John";
personB.gender="male";
personB.age = 29;
``` 



```
using System;
					
public class Program
{
	public static void Main()
	{
		 var personB = new person();
   personB.name ="John";
personB.gender="male";
personB.age = 29; 
	 
	  Console.WriteLine($"Hi my name is { personB.name} I am {personB.age} years old");
	}
	class person{
	public string name;
 public string gender;
  public int age;
	}
}
```