Using checked and unchecked. : Checked : Data Type C# Examples

    
using  System;  
  
class  MainClass  {    
    public  static  void  Main()  {    
        byte  a,  b;  
        byte  result;  
  
        a  =  127;  
        b  =  127;  
    
        try  {    
            result  =  unchecked((byte)(a  *  b));  
            Console.WriteLine("Unchecked  result:  "  +  result);  
  
            result  =  checked((byte)(a  *  b));  //  this  causes  exception  
            Console.WriteLine("Checked  result:  "  +  result);  //  won't  execute  
        }    
        catch  (OverflowException  exc)  {    
            //  catch  the  exception    
            Console.WriteLine(exc);  
        }    
    }    
}