C/C++

Answer The Following Questions:

Q1: What is the Output of Following Program?

            main ()

 {

                        char str={'H','E','L','L','O','\0'}

                        printf("%s/n",str+1);

 }

            (a)prints ELLO

            (b)prints HELLO

            (c)prints ILLO (i.e.'H' is incremented by 1)

            (d)None of the Above

Q2: What is the Output of the following Program?

            main()
            {
                        int counter=1;
                        for(;;)
                        {
                                     counter++;
                                     if(counter>9)
                                     break;
                                     }

            }
            in the above program
            (a)error b'coz for should have parameters
            (b)error bcoz 2 semicolons in a for loop are invalid
            (c)no error,loop is executed once
            (d) no error ,loop is executed 10 times

Q3:What is the output of the Following Program?

#define int INTEGER/*line1*/
#define INTEGER int/*line 2*/
 main()                                                                                                                            
   {
 INTEGER p=10;/*line 5*/
 printf("%d",p);
  }
o/p?
 (a) compiler error at line 1
 (b) compiler error at line 2
 (c) compiler error at line 5
 (d) No error,prints 10

Q4: Which of the following is illegal
            (a)void v;
            (b)void *v;
            (c)void **v;
            (d)all are legal

Q5: A question on malloc

int *p;
p=malloc(sizeof(int)*5);
 if malloc returned the address 1000;the value of p+1 is
  (a)1002
  (b)1004
  (c)1008
  (d)100F

Q6: What is the o/p?
            main()
            {

 char arr[5]={'a','a','b','c','d','e'};
printf("%s",arr);

 } 

Q7: What is the o/p of following Program?

#define f(x,y)  x=x+y;y=x-y;x=x-y;
main()
{

int  a=10,b=5;
f(a,b);
printf(“ The values of a and b are, %d, %d”,a,b);

}
a) 10 5  b) 5 10 c) 5 5 d) 10 10

Q8: what is the out put of following Program?

main()
{

void *ptr;
int  i=1;
ptr=&i;
ptr++;

}
a) the size of ptr incremented by 1 byte
b) the size of ptr incremented by 2 bytes
c) the size of ptr incremented by 4 bytes
d) none

Q9:

main()
{

int  a=10,b=7,c=15,z;
z=?;
printf(“Biggest number is %d”, z);

}
Write the expression for z to print the biggest of three numbers using conditional operator.

Q10:

 if( condition)

{

printf(“Hello”);

}

else

{

printf(“ World”);

}

What should be the condition to display the output as “hello world”.

 All the above questions are collected from Different Websites Answers will be Update soon.