CBSE Class 12 Computer Science Sample Paper Set 06

1. (a) When will you make function inline and why

(b)Write the names of the header files which are necessary to execute the following C++ code 

void main()

{ char c, String[ ] = " System Design ";

for(int i=0; String[i]!='\0' ;i++)

if(String[i]= = ' ')

cout<<endl;

else

{

c=toupper(String[i]);

cout<<c;

}

}

(c)Rewrite the following program after removing the syntactical error(s),if any .Under line  each correction .

#include<iostream.h>

#include<stdio.h>

void main()

{

struct emp

{

char emp_name[15];

char emp_no;

int salary = 5000;

}EMPLOYEE;

gets(emp_name);

gets(emp_no);

}

(d) Find the output of the following program 3

#include<iostrem.h>

#include<ctype.h>

void main()

{

char Text[ ] = “Mind@Work!”; 

for(int i=0 ; Text[i]!=’\0’ ; i++) 

{ 

if(!isalpha(Text[i])) 

Text[i]= ‘*’; 

else if (isupper(Text[i]))

Text[ i]=Text[i]+1; 

else 

Text[i]=Text[i+1]; 

} 

cout<<Text; 

} 

(e) Give the output of the following program

#include<iostream.h> 

int global = 10; 

void func(int &x, int y) 

{ 

x = x-y; y = x * 10; 

cout<< x <<' , ' << y << "\n"; 

} 

void main() 

{

 int global = 7; 

func(:: global, global); 

cout<<global<<' , '<<::global<<"\n"; 

func(global, ::global); 

cout<<global<<' , '<<::global<<"\n"; 

} 

(f). Find the correct possible out put(s)  

#include<stdlib.h> 

#include<iostream.h> 

void main() 

{ 

randomize(); 

char city[ ]={“PKD”, “EKM”, ”TVM”, “KOL”, “CAL”}; 

int ZEN; 

for(int i=0;i<3;i++); 

{ 

ZEN=random(2)+1; 

cout<<city[ZEN]<<”@”; 

} 

}

 (i) PKD@ EKM @TVM@ 

(ii) EKM @TVM@ EKM @ 

(iii) TVM@KOL@CAL@ 

(iv) TVM@ EKM @TVM@ 

2.  (a).What do you mean by a temporary instance of a class ? What is its use? how is it created? 

Please refer to attached file for CBSE Class 12 Computer Science Sample Paper Set B