Page 128 - C++

class marks: private personal
{
float m[5];
protected:
char grade[5];
public:
marks();
void mentry();
void mdisplay();
};
class result: public marks
{ float total, avg;
public:
result();
char finalgrade, comments[20];
void rcalculate();
void rdisplay();
};
i) Which type of inheritance is shown in the above example?

Ans: Multilevel inheritance
ii) Write the names of the data members which are directly accessible from

objects of class result.
Ans: finalgrade, comments
iii) Write the names of those data members, which can be directly accessible

from the mentry() function of class marks.
Ans: grade, m, name

iv) How many bytes will be required by an object belonging to class result?
Ans: 79

3. a) Define a function change(int a[20], int N) to repositions all elements of
array by shifting each of them to the next position and by shifting the last

element to the first position. 3

Ans: void change(int a[20], int n)
{
int t=a[n-1];
for( int i=0; i<n-1; i++)
a[i+1]=a[i];
a[0]=t;

}

XII / Comp. Sc. Page 7 of 17