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What is the Basic nature of "cin" and "cout" and what concept or principle we are using on those two?
Basically "cin and cout" are INSTANCES of istream and ostream classes respectively.And the concept which is used on cin and cout is operator overloading. Extraction and Insertion operators are overloaded for input and ouput operations. Reference:: Object oriented programming in C++ By E.Balagurusamy
smart_coder
- Jan 25th, 2007
Cin and cout are both objects of iostream class which we use to get input from user and present output to user respectively' ' are overloaded operators in iostream classwhen you write : cout
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Explain "passing by value", "passing by pointer" and "passing by reference"
pramay
- Mar 10th, 2006
Pass By Value example:The function receives a copy of the variable. This local copy has scope, that is, exists only within the function. Any changes to the variable made in the function are not passed...
rahultripathi
- Sep 24th, 2005
There is major defference between these three are when we want to avoid making the copy of variable and we want to change value of actual argument on calling function. there are we use passing by pointer,passing the reference. We can not perform arithmentic operation on reference.
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What is framework in C++?A framework is a collection of classes and applications, libraries of SDKs and APIs to help the different components all work together
wanttochange
- Jan 10th, 2008
This question seems to be misterious...anyway......we have some library that we use for our workfor sdk we use win32apifor mfc we have wraped the win32api in to the classes wat frame work u taking about?can u clear the q?
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Design a class for car inventory . For every new car from the manufacturer there should be minimal changes to the code.
wanttochange
- Jan 10th, 2008
if you want to do minimal change always go for polymorphic classes..first find the services you need ...& designa interface class that contain all methodsvirtual....now we can have different cars....
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What is static array?and how it differs from char *ptr?
kalayama
- Dec 5th, 2006
A static array is an array with fixed number of dimentions and each dimention will have fixed length. You can not change the dimentions of the Static array during runtime.ex: int arr[10][20] It has Tw...
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"Given a MAKEFILE (yeah a makefile), design the data structure that a parser would create and then write code that iterates over that data structure executing commands if needed.
dilipiyer
- Jan 24th, 2007
In a makefile, the command starts with a . All we need to do is identify the line starting with the and execute it with popen() or system command. Each command line is preceded by its call name. eg:all: gcc hello.cSo when we call make all. it runs gcc hello.c.
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How to overload enum operator.
kalayama
- Dec 5th, 2006
Enum is not an operator. It is a datatype. Hence it can NOT be overloaded as an operator.You can define operations on enum datatypes and Overload operators for perfoming operations using enum though.I...
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What is an escaping variable
tehoclub
- Jan 22nd, 2008
Escaping variable uses when you want to break loop.int flag = 1; //flag is an escaping variablefor(...){ for(...) { flag = 1; ... if(..) { flag = 0; break; } } if(flag==0) break;}
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Difference between Frame, view, document in VC++
FastGeek
- Nov 23rd, 2007
Frame window houses the View window besides toolbar, menubar and status bar. Its a parent window to the view. View is a visual representation of the document ( data ) . Document is where you can store/retrive the data using Serialize function.
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Empty declaration of a class holds memory 1 byte
Why empty declaration of a class holds memory 1 byte. Explain briefly?
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What are the advantages of using Doc/View or SDI over DialogBox
wanttochange
- Jan 10th, 2008
IN docview ..acually weuse 3 tier architecture...we seperate the implementationin data,logic,view(GUI)so that if we can change these component independently......this all is to make the design extendi...
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Whar are C++ Template strength and weekness 5 items
puneet83
- Mar 30th, 2009
Templates are best used when the logic applied on a data is independent of the data type. eg. performing Swap of 2 data items, these data items can be of type in, double, class objects etc.But the ope...
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C++ palindrome Code
How to check the string in one file is palindrome or not? Print how many strings in that file are palindrome?
king003
- Jun 3rd, 2008
//Ranier De Leon//June 2008#include<iostream>#include<string>#include<cctype>using namespace std;void tryAgain(int);void input();void main(){ input();}void tryAgain...
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