-
Storage Class and Storage Variables
What is Storage Class?
What are Storage Variables?nikhil verma
- Sep 2nd, 2010
Value of the variables stored in some physical location in memory or
register, on the basis of this storage class is defined in 4 ways:
1. Automatic storage class
2. External storage class
3. Static storage class
4. Register storage class
-
Read the following code# define MAX 100# define MIN 100 .... ....if(x>MAX)x=1;else if(x<MIN)x=-1;x=50;if the initial value of x=200,what is the value after executing this code?A. 200B. 1C. -1D. 50
vasu0040
- Aug 31st, 2010
200>100 true first the answer is 1 but compiler jumps to x=50;
so the final value is 50
because the else part has no paranthasis{ } -
What is the difference between declaring a variable and defining a variable?
Declaring a variable means describing its type to the compiler but not allocating any space for it. Defining a variable means declaring it and also allocating space to hold the variable. You can also initialize a variable at the time it is defined.
anandkumarjha
- Aug 31st, 2010
As far as declaration of variable is concerned it only shows the properties of variable and we declare the data type which are to be used by that variable but when it comes to the definition of variab...
prabhu
- May 5th, 2007
Int num;This statement is declaration and also defination since it also allocates memory for variable num.But when you use following statementextern int num;It is only declaration since you are not allocating memory here.
-
'9'A. intB. charC. stringD. float
Sivakumar
- Mar 20th, 2006
'9' is a charecter constant
-
Which of the following about the C comments is incorrect ?a.commentscan go over multiple linesb.comments can start any where in the linec.a line can contain comments with out any language statementsd.comments can occur within comments
C
-
}
plz simplify the statement the 2 .when i run program gives undefined symbol p..but in a/c mcq that is correct ..say collect address of i ..how?? ">1)what is RTTI in c++?2)main(){ int i=10; int &p=i; //statement 2printf("%d %d"i,p);}plz simplify the statement the 2 .when i run program gives undefined symbol p..but in a/c mcq that is correct ..say collect address of i ..how??
Sukumar Paul
- Aug 2nd, 2010
Hello anuj, This program should compile and run in Turbo C++3.0 Anyway, here you have declared and defined a integer variable 'i' initially its value is 10. Then you are declaring a reference ...
abhimanipal
- Jan 21st, 2010
There is no error in the program. The program compiles perfectly. when he writes int &p =i; p is a reference variable and it points to i. So there is no problem as such
-
What is the difference between "overloading" and "overridding"?
nebudotcom
- Aug 5th, 2010
Overloading:Using more than one function with the same name but with different signatures Overriding:* Two functions having same name located in two different classes* When an object is created for subclass, it will override the baseclass ie the subclass function will get evoked.
SUVI_1990
- Jun 13th, 2009
Overloading, an assignment operator is overloaded in a base class, it cannot be inherited in a derived class. And overriding is to create a new class using derived class.
-
++q; }
for(j=0;j<5;j++){
printf(" %d ",*p);
++p; }
}
What is the Output of the above program.">Main(){ int c[ ]={2.8,3.4,4,6.7,5}; int j,*p=c,*q=c; for(j=0;j
vidyadaundkar
- Dec 15th, 2008
Out put is 2 2 2 2 2 2 8 3 4 4 the o/p of first printf statement is 2 2 2 2 2o/p of second printf statement is 2 8 3 4 4
-
How to break cycle in circular single link list?
Sukumar Paul
- Aug 1st, 2010
There is a very wellknown algorithm (created by Robert W. Floyd).This algorithm is called Floyd's cycle finding algorithm.It uses 2 pointers moving at different speeds to walk the linked list. Onc...
alley
- Jul 2nd, 2007
There's an algorithm called Floyd-cycle finding algorithm.Briefly, start from a node and traverse the list in steps of one and two using two pointers. Eventually, both the pointers will coincide if there exists a cycle in the linked list.
-
Pointer to Unsingned int
Why it is not possible to create pointer to unsingned int?
geek Jack
- Aug 2nd, 2010
Try this, it is working... in C#include<stdio.h>main(){unsigned int *p;int m=7;p=&m;printf("%d",*p);}
kbjarnason
- Jul 1st, 2010
Unsigned int *ptr;Voila; a pointer to unsigned int. What language was being discussed which supposedly prevents this? Certainly not C.
-
The questions are as follows: 1. Write a 'c' program to read the age of 100 persons and count the number of persons in the age group 50 to 60.use for loop and continue statements.(10 marks)2. Write a program to read a positive integer and print its binary equivalent.(10 marks)3. Given two one dimensional arrays a and b which are sorted in ascending order. write a program to merge them into a single sorted array ,c that contains every item from arrays a and b, in ascending order.(10 marks)4. Write a function in c that would traverse a linear singly linked list in reverse and write out the contents in reverse order.(10 marks)5. Write a program to read a set of integers and to separate all odd and even numbers. write all even numbers in ascending order.(10 marks)6. Write a program to read a real number x and find the even number nearest to x.(10 marks)7. Write a program to multiply two matrices of order m*n and n*p respectively.(10 marks)8. Write a program in'c' to implement k-map simplification technique.(10 marks)
Sukumar Paul
- Aug 1st, 2010
Answer to Question 4.Here I am giving the full program which should run without any warning and error in Turbo C++ 3.0<-------------------------------------------------------------------------...
econos
- May 7th, 2008
#include <stdio.h>#include <math.h>#include <stdlib.h>int main(void){ int x,y,ref; int numbits=0; printf("Input the desired...
-
Following declarations are different from one anotherconst char *const s; char const *const s;
A) TrueB) False
Sukumar Paul
- Aug 1st, 2010
Yes, there is no difference between two declaration, both are same.1) const char *const s; &nb...
melukotahari
- Mar 12th, 2009
There is no difference between the two.Both are Constant pointer s to a constant characters
-
If the following program (myprog) is run from the command line as myprog monday tuesday wednesday thursday What would be the output? main(int argc, char *argv[]) { while(--argc >0) printf("%s",*++argv); }
A) myprog monday tuesday wednesday thursdayB) monday tuesday wednesday thursdayC) mondaytuesdaywednesdaythursdayD) myprog tuesday thursday
Sukumar Paul
- Aug 1st, 2010
Yes the correct ans is (C). There will not be any spaces.Whenever we are entering command line argument and giving sapace between monday & tuesday that to push different pointer to string in agrv....
neetu
- Mar 6th, 2006
Sorry, it would be Cmondaytuesdaywednesdaythursday
-
Point out error, if any, in the following program main() { int i=1; switch(i) { case 1: printf("nRadioactive cats have 18 half-lives"); break; case 1*2+4: printf("nBottle for rent -inquire within"); break; } }
A) No errorB) Runtime errorC)
Sukumar Paul
- Aug 1st, 2010
Yes, the ans is A) i.e. No Error.In switch case we can place any constant (only integer or character not any floating point number). Here 1*2+4 is an expression and the value of the expression is 6 i.e constant which is applicable in switch case.
-
Why don\'t we add null pointer at the end of array of integer?How can we calculate the length of array of integer?
poojayadav12
- Jul 28th, 2010
In case of array of characters we need a null pointer because after we get the output we press the enter key which takes 1 ASCII character value and as a result we need the null character.But in case ...
pratikgotal
- Apr 4th, 2010
No Ali null is not equal to '' it was nul. NULL is a macro defined in for the null pointer. NUL is the name of the first character in the ASCII character set. It corresponds to a zero value. There's n...
-
}
">#define SQR(x) x * xmain(){ printf("%d", 225/SQR(15));}
A) 15B) 225C) 1D) none of the above
Sukumar Paul
- Jul 24th, 2010
Yes the answer will be 225/15*15. As / and * has the same precedednce and associativity is from left to right so it will give 225(225/15*15 => 15*15 => 225).
yba
- Jul 10th, 2007
In algebra * has higher precedence than /, but in C they have the same precedence, and are left-associative, meaning the operations are performed left to right.So 225 / 15 * 15 gives (225/15)*15 or 22...
-
}
">Main(){ int i = 0xff ; printf("n%d", i
A) 1020B) 512C) 4D) 1024
Sukumar Paul
- Jul 24th, 2010
Here decimal eqivalent of OXFF is 255. Assuming integer is 16 bit, binary representation of OXFF will be: 0000000011111111 Next come to the i<<2, this left shift operator will shift the 2 bits l...
-
How we increment a value without using operator'+'.q2?what is single tone class. thanks
Hemendra Jain
- Mar 27th, 2007
Consider data is in HEX. Right shift the data till 0 is encountered AND increment the count. The position where 0 is encountered , change it to 1 and all bits to 0 for all ...
-
How we print alphabets using while loop?
sivaraju.sateesh
- Jul 20th, 2010
#include<stdio.h>main(){int i=65;while(i<123){if(i<91||i>96)printf("%c",i);i++;}}
-
Write a program to print nos between 100 and 500 which should print nos having 3 different digitsfor eg:it should print :123,159,342 etc all have different digits...but not 121, 122,333, see here atleast 2 digits are equal
sivaraju.sateesh
- Jul 20th, 2010
#include<stdio.h>main(){int num=101,temp,t,t1,t2;while(num>100&&num<500){temp=num;t=temp%10;temp=temp/10;t1=temp%10;temp=temp/10;t2=temp%10;temp=temp/10;if((t==t1)||(t1==t2)||(t2==t)){num++;continue;//num++;}else{printf("%dn",num);num++;}}}
criticalboot
- Feb 29th, 2008
#include<stdio.h>int main(){ int a,b,c; for(a=1;a<5;a++) for(b=0;b<10;b++) for...
C Interview Questions
Ans