Object-Orientation Concepts Interview Questions

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Answered by: Rohan

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Member Since Nov-2005 | Answered On : Feb 18th, 2006

#include <stdio.h>
#include <conio.h>
#include <string.h>

void main()
{
   char *str;
   int i,len;

  //not using any temp variable and assume we can use only string array and   length

   printf("Enter String : ");
   scanf("%s",str);
   len=strlen(str)-1;
   for(i=0;i<strlen(str)/2;i++)
   {
         str[i]+=str[len];
         str[len]=str[i]-str[len];
         str[i]=str[i]-str[len--];
   }
   printf("Reverse String is : %s",str);
   getch();
}

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Answered by: BA_Apprentise

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Member Since Apr-2013 | Answered On : Apr 18th, 2013

In laymans term walk-through is nothing but running thru the requirements while review is making an analysis of the progress and if the case may be a change has to be recommended

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Jul 4th, 2012

Raster data is a set of horizontal lines composed of individual pixels, used to form an image on a CRT or other screen.Raster data makes use of matrix of square areas to define where features are located. These squares are typically of uniform size, and their size determines the detail that can be maintained in the dataset.Raster data represent square areas, they describe interiors rather than boundaries. Vector data use X and Y coordinates to define the locations of points, lines, and areas (polygons) that correspond to map features, vector data tend to define centers and edges of features.They are excellent for capturing and storing spatial details

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Jul 4th, 2012

The basic elements of a picture in volume graphics is voxel.

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Apr 17th, 2012

CRM application cluster is a software that ranges in size and complexity making it possible for an organization to select the type of software needed the most. It consists of how a customer is related to sales,marketing and fulfillment,customer service and support,retention and loyalty program and contact and account management.

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Apr 17th, 2012

Stack supports four major computing areas,they are 1.expression evaluation 2.subroutine return address storage 3.dynamically allocated local variable storage and 4.subroutine parameter passing.

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Apr 17th, 2012

use the formulae X(i,j)=Base+w[n(i-1)+(j-1)] where m=7 ,n =9 ,i=2 ,j=3 hence 3000+8*[9(2-1)+(3-1)] =3000+8*(9+2) =3000+8*11=3088

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Apr 17th, 2012

Constructor does not support virtual functions because we need an object to invoke a virtual method in the first place and more over constructors are used to initializing objects,which is a static type.Virtual functions are invoked on the dynamic type of the object,hence the object may not be properly initialized when a constructor call is made.Since the derived part of the object would not be initialized during the execution of base class constructor,hence calling any virtual method from base class constructor does not work well.

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Answered by: Sandhya.Kishan

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Member Since Mar-2012 | Answered On : Apr 17th, 2012

A race around condition is a fault in the process or a system where the output or the result of the process is critically and unexpectedly dependent on the timing of other events. Race condition especially occurs in multithreaded or in distributed systems.

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Answered by: clickankit4u

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Member Since Feb-2009 | Answered On : Aug 3rd, 2011

Thinks of a situation where you need to do some work just once in a function irrespective of how many times that function is invoked then u can have a static variable which will keep a track of it. eg int main () { static int once = 0; if (!once) { once++; /*code need to be executed once*/ } /*reset of the code*/ }

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Answered by: Lecks

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Member Since Feb-2010 | Answered On : Feb 21st, 2010

I agree it is correct to say that Java is platform independent, but it is due to the Java Virtual Machine. Java programs are only intermediately compiled, which allows adaptation to the given environment it needs to run in later.

An example of a portability issue is the creation of Unix. The first version was not portable. It was specific only to that computer's architecture. Unix became portable when it was rewritten in C. The new version written in C was portable because C served as a "translator", if you will, between what underlying architecture or devices were physically in the computer and what unix wanted them to do.

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Answered by: kunal kaushal

No! we can not run any simple program with out using any interface such as operatin systen or System software. but in some cases like Machine level languge or firmware run without any software because it directlly communicate with hardware and makes the hardware active so other program can run using his platform.

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Answered by: Ankur

Buffer is something that is used to hold the data temporarly.
Ex-
If we are watching any thing online,then buffering of data takes place i.e for sometime data get stored in buffer then processed.

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Answered by: amitverma

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Member Since Nov-2007 | Answered On : Nov 14th, 2007

The major difference between the response time between a client & server is of - response time.
Usually client response time is lesser in comparison to the server response time.

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Answered by: saradalincoln

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Member Since Jun-2007 | Answered On : Jul 17th, 2007

hi,

1. Take 2 empty stacks.
2. Fill the 1st stack with some items (eg: input 100, 101, 102, 103)
3. Now read the items from 1st stack in LIFO order and write to 2nd stack.
    (By this the 2nd stack will get the items in the order .. 103, 102, 101, 100)
4. Now read the items from 2nd stack in LIFO order i.e. the output will be
    100, 101, 102, 103. 
    (this is the queue order FIFO with respect to the actual items entered in 1st
     stack.)


Thanks,
Sarada.

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Answered by: PKayanan

A database is an organized collection of information.  It is structured so you can jump to the information by using a key, and find related infromation by navigating a path.  A sequential (flat)  file is not considered a database. 

A relational database contains one-to-many relationships.

A networked database contains one-to-many and many-to-many relationships.

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Answered by: Gurvinder Singh

OSI is Open System Interface Model. It is a concept which is used to make data transfer in steps. There are 7 layers and each layer interact with its counterpart. earlier a product made by any abc co was able to communicate with the same company product. to communicate with different co's products it was created. as it's name shows "OPEN System Interface"

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Answered by: Harshit Mistry

Hi,Desktop application runs on a single machine. It could be a part of network. But Application and database resides on same machine. And only one user can access it at a time.Enterprise application is generally a multi-tier application. Many a concurrent users can access data and application at a time.

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Answered by: Hitesh

Linux supports virtual memory, that is, using a disk as an extension of RAM so that the effective size of usable memory grows correspondingly. The kernel will write the contents of a currently unused block of memory to the hard disk so that the memory can be used for another purpose. When the original contents are needed again, they are read back into memory. This is all made completely transparent to the user; programs running under Linux only see the larger amount of memory available and don't notice that parts of them reside on the disk from time to time. Of course, reading and writing the hard disk is slower (on the order of a thousand times slower) than using real memory, so the programs don't run as fast. The part of the hard disk that is used as virtual memory is called the swap space

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Answered by: kalayama

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Member Since Sep-2006 | Answered On : Dec 8th, 2006

There will be a lot of changes in fact. First of all, all the variables the function was suing needs to be pushed into the stack. (we need all these variables when we return from the other function). The Program counter will be pushed to stack too... (When the "return" of second function occurs we should know where to 'return' to)These are the basics which are bound to happen when a function calls another.