C# Programming - Inheritance - Discussion
Discussion Forum : Inheritance - General Questions (Q.No. 6)
6.
What will be the output of the C#.NET code snippet given below?
namespace IndiabixConsoleApplication
{
class Baseclass
{
public void fun()
{
Console.Write("Base class" + " ");
}
}
class Derived1: Baseclass
{
new void fun()
{
Console.Write("Derived1 class" + " ");
}
}
class Derived2: Derived1
{
new void fun()
{
Console.Write("Derived2 class" + " ");
}
}
class Program
{
public static void Main(string[ ] args)
{
Derived2 d = new Derived2();
d.fun();
}
}
}Discussion:
28 comments Page 2 of 3.
Mihi said:
1 decade ago
Since in derived classes for functions no access specifiers specified so those will not inherit. The final method that should inherit is Base class fun(). The output is "Base class"
Srinivas said:
1 decade ago
When ever if you have same method name in the parent (base) class and derived class, if you create an object for derived class then base class will be executed. If we want to execute both the methods to be executed we want to use 'virtual' key word in the base class and 'override key word in the derived class method.
Public virtual void fun1() in base class.
Public override void fun1() in derived class.
Public virtual void fun1() in base class.
Public override void fun1() in derived class.
Vapandian said:
1 decade ago
This is simple. Because other func() are not having public, only base class having public func() ; so this is only executed. If you provide public to derived 2 it will execute.
Amit said:
1 decade ago
Functions of class Derived1 and Derived2 are inaccessible due to its protection level i.e private (default access specifier) so it will access the function of Base Class because its public.
Ipsita said:
1 decade ago
What is new here?
Rajat said:
1 decade ago
Here the new keyword means derived class is calling the hidden function of base class.
Vidit Tyagi said:
1 decade ago
We need to use virtual keyword in base then we can hide the functionality of base class method with the help of new keyword :).
Hemant Jakkani said:
1 decade ago
Default access modifiers for member function of class is private.
Since no access modifiers is specified in derived class, it is private, So it is not accessible, so base class method will be called.
Since no access modifiers is specified in derived class, it is private, So it is not accessible, so base class method will be called.
Vaibhav M Nalwad said:
1 decade ago
When you add a new keyword for a property, variable, Method it is said to be Shadowing so the output would be "".
Rajesh k. said:
1 decade ago
New keyword : hides the members inherited from its parent class.
By default it will call its own class method , If we want to call method of parent class ,we can by base.<method_name>();
-Access modifier of method of Derived2 class is not mentioned i.e. it is private.
So, private methods are accessible from same class.
So, I think ans should be "Derived2".
By default it will call its own class method , If we want to call method of parent class ,we can by base.<method_name>();
-Access modifier of method of Derived2 class is not mentioned i.e. it is private.
So, private methods are accessible from same class.
So, I think ans should be "Derived2".
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers