HOME WORK- 04 "XI C ++" COMPUTER SCIENCE 2014-15
//CRACK TOUGH NUTS IN
c++ Test your skills in C++ PART-1
1.Write the Smallest Program in C++ ?
2.Identify the errors if any (Give
explanation also ):
[A]
main(){
return 5;}
[B]
int main(){
return 5;}
[C]
int main(){
return; }
[D]
void main(){
return;}
[E]
char main(){
char c=65;
return c;}
[F]
int main(){
char c=65;
return c;
}
[G]
main(){
char c=65;
return c;}
[H]
main(){
char c=65;
return 0.6;}
[I]
int main(){
return int(5.8999);
}
[J]
int main(){
return 5.8999;}
3. Write a C ++
Program To Display Hello Without Using Semicolon (Explain each line of code
also)
4. find out the errors in the below
given code :
#include<iostream.h>
#include<conio.h>
main()
{int _______________x=10,____________1111=20,1;
//MULTIPLE UNDERSCORES are
use as name of variable here
cout<<
_______________x<<____________1111;
getch();}
5. Find out the output and explain it
also line by line
#include<iostream.h>
#include<conio.h>
main()
{
int y;
//comma operator use
y=(10,20,30,40);
cout<<y;
y=10,20,30,40;
cout<<y;
int x =600;
y=(x/10+20,x*5+30,x-50/5);
cout<<y;
y=x/10+20,x*5+30,x-50/5;
cout<<y;
getch();}
Q6.Find the output and explain the
ouput …
#include<iostream.h>
#include<conio.h>
void main()
{
unsigned char i;
i=260; //0----- 255
cout<<int(i);
getch();}
Q7.Find the output and explain the
ouput …
#include<iostream.h>
#include<conio.h>
void main(){
signed char i;
i= -130;
cout<<int(i);
getch();}
Q8.Find the output and explain the
ouput …
void main(){
short i;
i= -32770;
cout<<i;
getch();}
Q9.Find the output and explain the
ouput …
#include<iostream.h>
#include<conio.h>
void main(){
int i=4;
cout<<"\n NOTE : <<
output operator inserts value from left to right to the cout
object. \n"
"
\n but...Expressions/values to be inserted for display are executed/evaluated
from right to left direction \n\n";
cout <<"\n Final
value of i = "<<i
<<"\n Value
of cout<<++i<<i<<++i<<i++ = "<<++i<<i<<++i<<i++
<<"\n Starting
value of i= "<<i;
getch();}
Q10.Find output and explain it also.s
#include<iostream.h>
#include<conio.h>
void main(){
int
i=4;
int
x=i++ + i++;
int
y=++++++++i;
int
z =++++i + ++++++i; //copiler gets mad---:-) performs
left to right
cout<<"\n x "<<x<<" y
= "<<y<<" z "<<z<<" i
="<<i;
int
a,b,c,d;
a=i++
+ i++;
b=++i
+ ++i; //++ perform right to left--correct as per precedence rule
c=++i
+ i++;
d=i
+ ++i;
cout<<"\n a "<<a<<" b
= "<<b<<" c "<<c<<" d "<<d<<" i
="<<i;
getch();}
// *******************THE
END**PART-1*******************///* It is a HOME ASSIGNMENT FOR
"XI C++" COMPUTER SCIENCE 2014-15 Submit it on Home work book on or
before 1ST SEPTEMBER 2014. */
