static void Main(string[] args)
{
Parent p1 = new child1();//upcasting
/* upcasting is done so that one parent obj can hold reference of any child classs obj,
* so we dont need to create more than one variable to hold references of more than one child class */
p1.Message();
//variable of parent can hold ref of child class objects but reverse is not true
//In overriding, system looks at the refernce type of p
Parent p2 = new child2();
//In hiding, system looks only at the type of p
p2.Message();
//child2 obj = p1;//Not possible ,child class obj cant hold ref of parent class
child1 obj = (child1)p1;//downcasting
obj.Message();
p1 = new ChildChild2();
p1.Message();
}
static void Main(string[] args)
{
baseclass[] bc = new baseclass[6];
bc[0] = new child1();
bc[1] = new child1();
bc[2] = new child1();
bc[3] = new child2();
bc[4] = new child2();
bc[5] = new child2();
for (int i = 0; i < 6; i++)
{
bc[i].method1("Subham");
}
}