Answer Posted / srinivas

by using c++,we can increase program efficiency and easily
trace the program.by using the classes and objects we can
easily access the variables.

How do you achieve polymorphism?

1136

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Plese get me a perfect C++ program for railway/airway reservation with all details.

3955

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Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.

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what are the ways in which a constructors can be called?

2203

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What are the benefits of interface?

1118

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What is static in oop?

1120

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why reinterpret cast is considered dangerous?

2450

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What are constructors in oop?

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#include #include #include #include void insert(struct btreenode **, int); void inorder(struct btreenode *); struct btreenode { struct btreenode *leftchild; struct btreenode *rightchild; int data; }; main() { struct btreenode *bt; bt=(struct btreenode *)NULL; int req,i=1,num; clrscr(); printf("Enter number of nodes"); scanf("%d",&req); while(i<=req) { printf("Enter element"); scanf("%d",&num); insert(&bt,num); i++; } inorder(bt); } void insert(struct btreenode **sr, int num) { if(*sr==NULL) { *sr=(struct btreenode *)malloc (sizeof(struct btreenode)); (*sr)->leftchild=(struct btreenode *)NULL; (*sr)->rightchild=(struct btreenode *)NULL; (*sr)->data=num; return; } else { if(num < (*sr)->data) insert(&(*sr)->leftchild,num); else insert(&(*sr)->rightchild,num); } return; } void inorder(struct btreenode *sr) { if(sr!=(struct btreenode *)NULL) { inorder(sr->leftchild); printf("\n %d",sr->data); inorder(sr->rightchild); } else return; } please Modify the given program and add two methods for post order and pre order traversals.

3830

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Describe these concepts: Polymorphism, Inheritance and Abstraction.

1247

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What is the difference between a constructor and a destructor?

1345

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How is class defined?

1209

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What is difference between pop and oop?

1237

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What is byval and byref? What are differences between them?

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What is an advantage of polymorphism?

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