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using System;
					
public class Program
{
	public static void Main()
	{
		TestCastingFromObjectToDouble();
	}
	
	public static void TestCastingFromObjectToDouble()
	{
		
		Log("The purpose of this test is to show how an object holding an int value can be cast to a double.");
		Log();
		
		int int_a = 5;
		Log("The original int we're working with is int_a = " + int_a);
		
		double dbl_intCastedToDouble = (double)int_a;
		Log("We can easily cast this int to a double: " + dbl_intCastedToDouble);
		Log();
		
		object obj_intCastedToObject = (object)int_a;
		Log("We can easily also cast an int to an object: " + obj_intCastedToObject);
		Log();
		
		Log("If we can cast an int to a double, can we cast the object to a double?");
		Log("No. We can't just do double d = (double)obj. If you try you get an System.InvalidCastException.");
		Log("Why? Because the object is not a double. It's actually an int.");
		//double dbl_objectCastedToDouble = (double)obj_intCastedToObject; // 'System.InvalidCastException'
		Log();
		
		double dbl_objectCastedFirstToIntThenDouble = (double)(int)obj_intCastedToObject;
		Log("What we can do though is first cast it to an int, then cast it to a double!");
		Log("Like this: double dbl_objectCastedFirstToIntThenDouble = (double)(int)obj_intCastedToObject;");
		Log("double dbl_objectCastedFirstToIntThenDouble is now " + dbl_objectCastedFirstToIntThenDouble);
		Log();
		
		Log("Alternatively instead of casting we could use: Convert.ToDouble(obj_intCastedToObject);");
	}
	
	public static void Log(string msg)
	{
		Console.WriteLine(msg);
	}
	
	
	public static void Log()
	{
		Console.WriteLine();
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        TestCastingFromObjectToDouble();
    }
    
    public static void TestCastingFromObjectToDouble()
    {
        
        Log("The purpose of this test is to show how an object holding an int value can be cast to a double.");
        Log();
        
        int int_a = 5;
        Log("The original int we're working with is int_a = " + int_a);
        
        double dbl_intCastedToDouble = (double)int_a;
        Log("We can easily cast this int to a double: " + dbl_intCastedToDouble);
        Log();
        
        object obj_intCastedToObject = (object)int_a;
        Log("We can easily also cast an int to an object: " + obj_intCastedToObject);