- Can a derived class pointer point to a base class object?
- What is method hiding?
- Which method Cannot be overridden?
- Can static class have constructor?
- Can a outer class be static?
- Which is the mechanism of static polymorphism?
- Which of the following is not the member of class?
- When should you make a class static?
- What are static members of a class?
- Is static function member of class?
- What is correct about the static data member of a class?
- Why we Cannot override static method?
- When would you use a static method?
- What is non static member?
- Can we override static method?
Can a derived class pointer point to a base class object?
A derived pointer cannot be assigned a pointer to a base type without casting simply because it cannot tell if the base pointer is of the Derived type or one of its children..
What is method hiding?
Method hiding means subclass has defined a class method with the same signature as a class method in the superclass. In that case the method of superclass is hidden by the subclass. It signifies that : The version of a method that is executed will NOT be determined by the object that is used to invoke it.
Which method Cannot be overridden?
A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot be overridden. A subclass within the same package as the instance’s superclass can override any superclass method that is not declared private or final.
Can static class have constructor?
A static class cannot contain instance members and constructors. var cannot be used to define static members. You must specify a type of member explicitly after the static keyword. Static classes are sealed class and therefore, cannot be inherited.
Can a outer class be static?
We can’t declare outer (top level) class as static because the static keyword is meant for providing memory and executing logic without creating Objects, a class does not have a value logic directly, so the static keyword is not allowed for outer class.
Which is the mechanism of static polymorphism?
Discussion ForumQue.Which of the following is a mechanism of static polymorphism?b.Function overloadingc.Templatesd.All of the aboveAnswer:All of the above1 more row
Which of the following is not the member of class?
Out of the following, which is not a member of the class? Explanation: Friend function is not a member of the class. They are given the same access rights as the class member function have but they are not actual members of the class. 5.
When should you make a class static?
Use a static class as a unit of organization for methods not associated with particular objects. Also, a static class can make your implementation simpler and faster because you do not have to create an object in order to call its methods.
What are static members of a class?
When we declare a member of a class as static it means no matter how many objects of the class are created, there is only one copy of the static member. A static member is shared by all objects of the class. All static data is initialized to zero when the first object is created, if no other initialization is present.
Is static function member of class?
Static Member Functions in C++ Since static member variables are class properties and not object properties, to access them we need to use the class name instead of the object name.
What is correct about the static data member of a class?
What is correct about the static data member of a class? A static member function can access only static data members of a class. A static data member is shared among all the object of the class. A static data member can be accessed directly from main().
Why we Cannot override static method?
Static methods cannot be overridden because they are not dispatched on the object instance at runtime. The compiler decides which method gets called. Static methods can be overloaded (meaning that you can have the same method name for several methods as long as they have different parameter types).
When would you use a static method?
You should use static methods whenever,The code in the method is not dependent on instance creation and is not using any instance variable.A particular piece of code is to be shared by all the instance methods.The definition of the method should not be changed or overridden.More items…•
What is non static member?
A non-static member function is a function that is declared in a member specification of a class without a static or friend specifier.
Can we override static method?
Can we override a static method? No, we cannot override static methods because method overriding is based on dynamic binding at runtime and the static methods are bonded using static binding at compile time. So, we cannot override static methods.