static void Main(string[] args)
{
PublicLib.Class1 pc = new PublicLib.Class1();
Console.WriteLine("Total a + b : " + pc.Sum(1, 2));
InternalLib.Class1 ic = new InternalLib.Class1();
Console.WriteLine("Total a + b : " + ic.Sum(1, 2));
}
static void Main(string[] args)
{
PublicLib.Class1 pc = new PublicLib.Class1();
int sum = pc.Sum(1, 2);
Console.WriteLine(sum);
InternalLib.Class1 ic = new InternalLib.Class1();
sum = ic.Sum(1, 2);
Console.WriteLine(sum);
}