Page 211 - C++

PRACTICE PAPER -III

Max Marks: 70 Time: 3 Hrs

Q.1(a) What is the benefit of using default parameter/argument in a function ? Give suitable example to illustrate it using C++
code. [2]
(b)Observe the following C++ code and write the name(s) of the header file(s) , which will be essentially required to run it
in a C++ compiler :
void main( )
{ float Area , Side ;
cin>>Area ;
Side=sqrt(Area) ;
cout<<”One Side of the Square:”<<Side<<endl;
} [1]
(c) Observe the following C++ code carefully and rewrite the same after removing all the syntax error(s) present
in the code. Ensure that you underline each correction in the code. (Note: All desired header files
are already included, which are required to run the code. Correction should not change the logic
of the program.)
#define Change(A,B) 2*A+B;
void main( )
{
Float X,Y,F;
cin >> X>>Y;
F=Change[X,Y];
cout <<”Result:”<<F<<endline;
} [2]
(d) Observe the following C++ code carefully and obtain the output, which will appear on the screen after execution
of it.( Note: All desired header files are already included, which are required for it.)
void main( )
{
char *Text=”AJANTA”;
int *P, Num[ ]={1 , 5 , 7 , 9};
P=Num;
cout<<*P<<Text<<endl;
Text++;
P++ ;
cout <<*P<< Text<<endl;
} [2]

(e) Observe the following C++ code carefully and obtain the output, which will appear on the screen after execution of it.
#include <iostream.h>
class Mausam
{
int City , Temp , Humidity;
public:
Mausam(int C=1) {City=C; Temp=10; Humidity=63;}
void Sun(int T) {Temp+=T;}
void Rain(int H) {Humidity+=H;}
void CheckOut( )
{
cout<<City<<”:”<<Temp<<”&”<<Humidity<<”%”<<endl;
}
};
void main( )
{
Mausam M,N(2);
M.Sun(5);

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