Answer Posted / p govind rao

if an object of a derived class is assigned to a base class
object,the compiler accepts it.but it copies only the base
portion of the object


#include<iostream>
using namespace std;

class base
{
public:
int i,j;
base(){i=2;j=3;}
virtual void show(){cout<<"i = "<<i<<endl<<"j = "<<j<<endl;}
};

class derived :public base
{
public :
int k;
derived(){k=4;}
void show() {
base::show();
cout<<"k = "<<k<<endl;
}
};

int main()
{
base b;
derived d;
d.show();
b=d;

b.show();

return 0;
}

OutPut is
i = 2
j = 3
k = 4
---------------
i = 2
j = 3

here b contains i and j where as d contains i,j&k.On
assignment only i and j of the d get copied into i and j of
b. k doesnot be copied. on the effect object d got sliced.

What is interface? When and where is it used?

2169

---

What are oops functions?

1035

---

What is the problem with multiple inheritance?

1170

---

How does polymorphism work?

1147

---

Is data hiding and abstraction same?

1048

---

hi all..i want to know oops concepts clearly can any1 explain??

2141

---

What is class and example?

1189

---

What do you mean by abstraction?

1075

---

Explain virtual inheritance?

1209

---

What does enum stand for?

1126

---

What is encapsulation in simple terms?

1042

---

What is encapsulation and abstraction? How are they implemented in C++?

1140

---

What does I oop mean?

1077

---

#include #include #include #include void insert(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); insert(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void insert(char *items, int count) { register int a, b; char t; for(a=1; a < count; ++a) { t = items[a]; for(b=a-1; (b >= 0) && (t < items[b]); b--) items[b+1] = items[b]; items[b+1] = t; } } design an algorithm for Insertion Sort

2628

---

What is the difference between inheritance and polymorphism?

1115

---