<iostream> or <iostream.h> ??

when i compile a c++ program using <iostream.h> i get the following warning

C:\Program Files\CodeBlocks\MinGW\bin\..\lib\gcc\mingw32\3.4. 5\..\..\..\..\include\c++\3.4.5\backward\backward_ warning.h|32|warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated.|
||=== Build finished: 0 errors, 1 warnings ===|

but when i replace it by <iostream> it shows the error:

C:\Documents and Settings\Machine\Desktop\Untitled1.cpp||In function `int main()':|
C:\Documents and Settings\Machine\Desktop\Untitled1.cpp|5|error: `cout' was not declared in this scope|
C:\Documents and Settings\Machine\Desktop\Untitled1.cpp|5|error: `endl' was not declared in this scope|
||=== Build finished: 2 errors, 0 warnings ===|

i am using codeblocks. what should i do?
to be more specific can anyone tell why the compiler cant accept <iostream> though it suggests to do so.

It works with <iostream>

I'm 100% sure that you haven't put the line..

Code:

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using namespace std;

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before using the standard library objects..
The other option is to use

Code:

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std::cout

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Code:

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std::cin

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etc ..everywhere..

ya that was the fault, lots of thanks..

Welcome..Abbas..
C++ koto'ta sekha holo ? C'er theke bhalo lagche na baje?