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coz at the run time object is provided memory , that's why object is called run time entity .

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What is RTTI?

RTTI means run time type identification. It is the process of identifying the type of an identifier or an object during runtime which is not known during compile time. Through this, we can hide the implementation details of a particular identifier or an object at the user level during programming so that it ca be distinguished during runtime and used further.Object persistency is acheived through RTTI


What are methods in programming?

A method is simply a name we often use when referring to a virtual function in object oriented programming. We can define virtual functions for any class method which we expect to be overridden by a derivative of the class. Even if the exact runtime type of an object is not known but we hold a reference or pointer to one of its base classes, and unless we specify otherwise, implicitly invoking any method of that base class will invoke the most-derived override of that method, thus objects behave according to type even when that type is not known at compile time. This is known as runtime polymorphism.


Where to use polymorphism?

Polymorphism is used whenever you wish to achieve specific behaviour from a generic object, where the object's actual type may not be known or would be impossible to determine at compile time. By declaring virtual methods in the generic type (the base class), and overriding them in the derived type, you ensure that the derived object does "the right thing" regardless of its actual type, and regardless of whether the method is called directly or indirectly via the base class. With polymorphism, there is no need to determine the actual runtime type of the object, you get that for free simply by calling the appropriate virtual methods.


Can weak entity be converted into strong entity?

The primary key of a weak entity set is formed by taking the primary key of the strong entity set on which its existence depends (see Mapping Constraints) plus its discriminator. A strong entity set has a primary key. All tuples in the set are distinguishable by that key. A weak entity set has no primary key unless attributes of the strong entity set on which it depends are included. Tuples (a particular row) in a weak entity set are partitioned according to their relationship with tuples in a strong entity set. Tuples within each partition are distinguishable by a discriminator, which is a set of attributes.


The base class of an object is known as which one what?

a

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What is RTTI?

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What is execution time error in C programming?

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What type of account would be personal in Accounting?

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