What is polymorphism? C++

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Polymorphism is the idea that a base class can be inherited by several classes. A base class pointer can point to its child class and a base class array can store different child class objects.

2012-02-01, 3214👍, 0💬

Does c++ support multilevel and multiple inheritance?
Does c++ support multilevel and multiple inheritance? Yes. 2012-02-02, 3402👍, 0💬

What is public, protected, private? C++
What is public, protected, private? C++ Public, protected and private are three access specifiers in C++. Public data members and member functions are accessible outside the class. Protected data members and member functions are only available to derived classes. Private data members and member func... 2012-01-30, 3356👍, 0💬

Write a function that swaps the values of two integers, using int* as the argument type.
Write a function that swaps the values of two integers, using int* as the argument type. void swap(int* a, int*b) { int t; t = *a; *a = *b; *b = t; } 2012-01-31, 3343👍, 0💬

You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc()
You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc() Answer1 1.) “new and delete” are preprocessors while “malloc() and free()” are functions. [we dont use brackets will calling new or delete]. 2.) no need of allocate the m... 2012-02-06, 3279👍, 0💬

Write a short code using C++ to print out all odd number from 1 to 100 using a for loop
Write a short code using C++ to print out all odd number from 1 to 100 using a for loop for( unsigned int i = 1; i < = 100; i++ ) if( i & 0x00000001 ) cout << i << \",\"; 2012-01-30, 3221👍, 0💬

What is polymorphism? C++
What is polymorphism? C++ Polymorphism is the idea that a base class can be inherited by several classes. A base class pointer can point to its child class and a base class array can store different child class objects. 2012-02-01, 3215👍, 0💬

What is the difference between an ARRAY and a LIST?
What is the difference between an ARRAY and a LIST? Answer1 Array is collection of homogeneous elements. List is collection of heterogeneous elements. For Array memory allocated is static and continuous. For List memory allocated is dynamic and Random. Array: User need not have to keep in track of n... 2012-02-02, 3204👍, 0💬

Define a constructor - What it is and how it might be called (2 methods).
Define a constructor - What it is and how it might be called (2 methods). Answer1 constructor is a member function of the class, with the name of the function being the same as the class name. It also specifies how the object should be initialized. Ways of calling constructor: 1) Implicitly: automat... 2012-02-03, 3157👍, 0💬

Tell how to check whether a linked list is circular C++
Tell how to check whether a linked list is circular C++ Create two pointers, each set to the start of the list. Update each as follows: while (pointer1) { pointer1 = pointer1->next; pointer2 = pointer2->next; if (pointer2) pointer2=pointer2->next ;if (pointer1 == pointer2) { pri... 2012-01-31, 3157👍, 0💬

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