create new class in c# code example

Example 1: class in c#

public class Car
{  
    // fields
    public bool isDriving = false;
    
    // constructor
    public Car( string make )
    {
        Make = make;
    }
	
    // properties
    private string _make = string.Empty;
    public string Make
    {
        get { return _make; }
        set { _make = value; } 
    }
    
    // methods
    public void drive()
    {
        if( isDriving )
        {
			// Car is already moving
        }
        else
		{
            // start driving the car
            isDriving = true;
    	}        
    }

    public void stop()
    {
		if( isDriving )
		{
			// stop the car 
			isDriving = false;
		}
        else
        {
			// car is already not moving
        }        
    }      
}

// ---
// An example of using this class in a console app

using System;
					
public class Program
{
	public static void Main()
	{		
        // construct a new class of type Car and set the Make
      	// property to "VW" using the constructor.
		Car newCar = new Car( "VW" );
		
      	// display the make of our new car
		Console.WriteLine( newCar.Make );
		
      	// call the drive method of the car class
		newCar.drive();		
		
      	// display the value of the isDriving property to
		Console.WriteLine( newCar.isDriving );
		
      	// call the stop method of the car class
		newCar.stop();
		
      	// display the value of the isDriving property
		Console.WriteLine( newCar.isDriving );
	}
}

// the class 
public class Car
{  
    // fields
    public bool isDriving = false;
    
    // constructor w
    public Car( string make )
    {
        Make = make;
    }
	
    // properties
    private string _make = string.Empty;
    public string Make
    {
        get { return _make; }
        set { _make = value; } 
    }
    
    // methods
    public void drive()
    {
        if( isDriving )
        {
        		// Car is already moving
        }
        else
		{
            // start driving the car
            isDriving = true;
    	}        
    }

    public void stop()
    {
		if( isDriving )
		{
			// stop the car 
			isDriving = false;
		}
        else
        {
			// car is already not moving
        }        
    }      
}

Example 2: c# class declaration

//[access modifier] - [class] - [identifier]
public class Customer
{
   // Fields, properties, methods and events go here...
}