Use properties to set and get private members. : Properties : Class C# Examples

    
using  System;  
  
class  Shape  {  
    double  pri_width;    //  now  private  
    double  pri_height;  //  now  private    
  
    //  Properties  for  width  and  height.  
    public  double  width  {  
          get  {  return  pri_width;  }  
          set  {  pri_width  =  value;  }  
    }  
  
    public  double  height  {  
          get  {  return  pri_height;  }  
          set  {  pri_height  =  value;  }  
    }  
  
    public  void  showDim()  {  
        Console.WriteLine("Width  and  height  are  "  +  
                                              width  +  "  and  "  +  height);  
    }  
}  
  
class  Triangle  :  Shape  {  
    public  string  style;  //  style  of  triangle  
      
    public  double  area()  {  
        return  width  *  height  /  2;    
    }  
  
    public  void  showStyle()  {  
        Console.WriteLine("Triangle  is  "  +  style);  
    }  
}  
  
class  MainClass  {  
    public  static  void  Main()  {  
        Triangle  t1  =  new  Triangle();  
        Triangle  t2  =  new  Triangle();  
  
        t1.width  =  4.0;  
        t1.height  =  4.0;  
        t1.style  =  "isosceles";  
  
        t2.width  =  8.0;  
        t2.height  =  12.0;  
        t2.style  =  "right";  
  
        Console.WriteLine("Info  for  t1:  ");  
        t1.showStyle();  
        t1.showDim();  
        Console.WriteLine("Area  is  "  +  t1.area());  
  
        Console.WriteLine();  
  
        Console.WriteLine("Info  for  t2:  ");  
        t2.showStyle();  
        t2.showDim();  
        Console.WriteLine("Area  is  "  +  t2.area());  
    }  
}