public static void Demo()
{
Console.WriteLine($"Simple Inheritance");
Console.WriteLine();
BaseClass parent = new BaseClass();
parent.Method1();
parent.Method2();
ChildA childA = new ChildA();
childA.Method1();
childA.Method2();
childA.Method3();
ChildB childB = new ChildB();
childB.Method1(); //method hiding
childB.Method2(); //method override
BaseClass parent2 = (BaseClass)childB;
parent2.Method1(); // calling BaseClass method
parent2.Method2(); // derived method will run since it overrides BaseClass
Console.WriteLine($"------------------------");
Console.WriteLine();
}
public static void Demo()
{
Helpers.DisplaySectionTitle("Simple Inheritance");
BaseClass parent = new BaseClass();
parent.Method1();
parent.Method2();
ChildA childA = new ChildA();
childA.Method1();
childA.Method2();
childA.Method3();
ChildB childB = new ChildB();
childB.Method1(); //method hiding
childB.Method2(); //method override
BaseClass parent2 = (BaseClass)childB;
parent2.Method1(); // calling BaseClass method
parent2.Method2(); // derived method will run since it overrides BaseClass
Helpers.DisplaySectionEnd();
}
public static void Demo()
{
Console.WriteLine($"Interface Inheritance");
Console.WriteLine();
{
Console.WriteLine($"Type is class");
Console.WriteLine();
ChildA childA = new ChildA();
childA.Method1();
ChildB childB = new ChildB();
childB.Method2();
ChildAB childAB = new ChildAB();
childAB.Method1();
childAB.Method2();
}
{
Console.WriteLine();
Console.WriteLine($"Type is interface");
Console.WriteLine();
IInterfaceA childA = new ChildA();
childA.Method1();
IInterfaceB childB = new ChildB();
childB.Method2();
IInterfaceA childAB1 = new ChildAB();
childAB1.Method1();
// childAB.Method2(); cannot access Method2 because it is not defined in IInterfaceA
IInterfaceB childAB2 = new ChildAB();
// childAB2.Method1(); cannot access Method1 because it is not defined in IInterfaceB
childAB2.Method2();
}
Console.WriteLine($"------------------------");
Console.WriteLine();
}
public static void Demo()
{
Helpers.DisplaySectionTitle("Sealed");
BaseClass parent = new BaseClass();
parent.Method1();
parent.Method2();
ChildA childA = new ChildA();
childA.Method1();
childA.Method2();
ChildB childB = new ChildB();
childB.Method1();
childB.Method2(); // ChildA.Method2() will be shown since it cannot be further overriden
Helpers.DisplaySectionEnd();
}
public static void Demo()
{
Console.WriteLine($"Sealed");
Console.WriteLine();
BaseClass parent = new BaseClass();
parent.Method1();
parent.Method2();
ChildA childA = new ChildA();
childA.Method1();
childA.Method2();
ChildB childB = new ChildB();
childB.Method1();
childB.Method2(); // ChildA.Method2() will be shown since it cannot be further overriden
Console.WriteLine($"------------------------");
Console.WriteLine();
}