Answer Posted / vishaka

The class shoul be made abstract to stop it from being
derived or inherited. To make a class abstract, it should
have atleast one pure virtual function.

#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

---

How to handle exception in c++, For example in a functions i am assigning memory to some variables and also in next instructions in am dividing one variable also. If this functions generates a error while allocating memory to those variable and also while dividing the variable if i divide by zero then catch block how it will identify that this error has cone from perticular instruction

2185

---

What is constructor overloading in oop?

1184

---

What is interface in oop?

1187

---

What is encapsulation with real life example?

1091

---

What is the oops and benefits of oops programming?

1034

---

How do you achieve polymorphism?

1137

---

What makes a language oop?

1133

---

What is encapsulation in oops?

1074

---

What is object in oops?

1125

---

Why do we use inheritance?

1195

---

Explain the concepts involved in Object Oriented programming.

1317

---

to find out the minimum of two integer number of two different classes using friend function

2186

---

Are polymorphisms mutations?

1217

---

What is constructor in oop?

1176

---