Ask any Question About C++ here!

[SufyanGujar]

bhai mujhey ap sey aik sawal puchna hai C aur c++ k barey m

bhai bht hi basic sawal hai
wo yh keh
header files kya hain
aur kya har program k lye difrent header file use karni parti hai
iski mujhey samajh nahi aa rahi plz explain here
i am waiting for ur answer

Bhai header file include karna zaroori nahi,
agar aap basic learner ho to leave it for now,

Header file mein aap functions and classes ki
declaration code save kar sakte ho aur source
file se us code ko call kar sakte ho, lekin abhi
k liye aap ko us ki zaroorat nahi pare gi,

Is LAungage Ko Seekhne ki Basic requirement Ki HAi
Kiya Kiya KArna PAre Ga Or is k Liye Kisi Software Ki Zaroorat hoti hai

bhai koi bhi seekh sakta hai, koi requirement nahi,
just aap ko basic calculation ani chahye aur meaning
of words ka pata hona chahye. Baqi aap basic level
se start kar do,
Aap ko apna code compile aur run karne ke liye
compiler ki zaroorat parye gi,
App different compilers free haasil kar sakte hain,
for example: Micrsoft Visual C++ express edition is
free to download. There is, Dev-C++, Borland-C++ etc

Bhai aap koi book le kar seekhna suru kar do,
book ke 1st chapter mein aap ko in cheeson ke
bare mein tafseel sa bataya jaye ga.

-Saif

[FritZie]

Bhai header file include karna zaroori nahi,
agar aap basic learner ho to leave it for now,

Header file mein aap functions and classes ki
declaration code save kar sakte ho aur source
file se us code ko call kar sakte ho, lekin abhi
k liye aap ko us ki zaroorat nahi pare gi,



bhai koi bhi seekh sakta hai, koi requirement nahi,
just aap ko basic calculation ani chahye aur meaning
of words ka pata hona chahye. Baqi aap basic level
se start kar do,
Aap ko apna code compile aur run karne ke liye
compiler ki zaroorat parye gi,
App different compilers free haasil kar sakte hain,
for example: Micrsoft Visual C++ express edition is
free to download. There is, Dev-C++, Borland-C++ etc

Bhai aap koi book le kar seekhna suru kar do,
book ke 1st chapter mein aap ko in cheeson ke
bare mein tafseel sa bataya jaye ga.

-Saif

AGar Aap Book Ki Link Dete To Behtar Tha

[SufyanGujar]

AGar Aap Book Ki Link Dete To Behtar Tha

bhai mein zaroor deta, infact mein ne link paste bhi kia
tha lekin remove kar diya, mein sirif English Books ke
links janta hoon, aur aap urdu perna chahien ge, dats
y mein ne link nahi diya, lekin agar aap ko english se
problem nahi hai to i got the best book for a learner
like you, this book explains everythn in detail, perfectly,
Here is link: Sams Teach Yourself C++ in 21 Days! (6th Edition)
This is the latest edition of this book, realy awesome book,
-Saif.

[stillawolf]

Aslamoalikum,
bhai meri bhi help kr do please..yar aj he reply kr do jaldi se

this is my programe

#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
void main()
{
clrscr();
double r, n1=132.364, n2=26.91;
r=n1/n2;
cout<<r<<endl;
cout<<setprecision(5)<<r<<endl;
cout<<setprecision(4)<<r<<endl;
cout<<setprecision(3)<<r<<endl;
cout<<setprecision(2)<<r<<endl;
cout<<setprecision(1)<<r<<endl;
getch();
}

and jb compile krta hoon to 10 error atay hn

jo kahta hai

Fatal..\include\iomanip.h: must use C++ for the io stream manipulators directives error
help me please

[knowldge_hunter]

yeh errors i think so progrms key nahi balkey my computer mein jis drive mein apne c++ save ki hoi hay os mein headrefiles key folder mein setting thek nahi hay jhan tak mujy maloom hay.

baqi sufyan bahi janty hunge baehter

[SufyanGujar]

Guys be patience; i am still in college, let me get home and i will sort dat out, i cant
compile dat code here, cuz there is no such software installed on college machines.

[stillawolf]

thanks bhai jaan ab rat hogai hai... i hope ap bata den gay kal tk

[SufyanGujar]

Here you go, took me 30 seconds to do dat;
I aint gona explain everythn; just compare
both codes and search for mistakes if u want:

Compilable Code:

#include<iostream>
#include<conio.h>
#include<iomanip>

using namespace std;

void main()
{
system("CLS");
double r, n1=132.364, n2=26.91;
r=n1/n2;
cout<<r<<endl;
cout<<setprecision(5)<<r<<endl;
cout<<setprecision(4)<<r<<endl;
cout<<setprecision(3)<<r<<endl;
cout<<setprecision(2)<<r<<endl;
cout<<setprecision(1)<<r<<endl;
getch();
}

I do apologise for keep you waiting, but cant
do much in college;

-Saif

[stillawolf]

let me check

[stillawolf]

bhai nahi ho raha yar ye complete paste kia hai phir bhi nahi hota..
yar ap mind na kren to dobara bata den..
or zara ghor se daykhen..
k apnay
#include<iostream> likha hai jo k galat hai still kafi sari galtian hai
jb ye galti remove krta hoon to 4 reh jati hn
esi trhan jb iomanip ko jb #include<iomanip.h> krta hoon to 12 galtian ho jati hn : /
yar ap ek kam kren apne ye programe jahan pe save kia hai mj wo library files notepad wali he copy kr k paste kr den.. agr wo theek run howa hai..
i am still confuse ye nahi ho raha..
helppppppppppp saif bhai help ........

[adee143]

to kya bhai mein har program k lye <stdio.h> use kar sakta hun???

[SufyanGujar]

bhai nahi ho raha yar ye complete paste kia hai phir bhi nahi hota..
yar ap mind na kren to dobara bata den..
or zara ghor se daykhen..
k apnay
#include<iostream> likha hai jo k galat hai still kafi sari galtian hai
jb ye galti remove krta hoon to 4 reh jati hn
esi trhan jb iomanip ko jb #include<iomanip.h> krta hoon to 12 galtian ho jati hn : /
yar ap ek kam kren apne ye programe jahan pe save kia hai mj wo library files notepad wali he copy kr k paste kr den.. agr wo theek run howa hai..
i am still confuse ye nahi ho raha..
helppppppppppp saif bhai help ........

here is more relible code; try this, and get some better compiler;
get Microsoft Visual C++ (Express Edition) or Dev-C++,

#include<iostream>
#include<conio.h>
#include<iomanip>

using namespace std;

int main()
{
system("CLS");
double r, n1=132.364, n2=26.91;
r=n1/n2;
cout<<r<<endl;
cout<<setprecision(5)<<r<<endl;
cout<<setprecision(4)<<r<<endl;
cout<<setprecision(3)<<r<<endl;
cout<<setprecision(2)<<r<<endl;
cout<<setprecision(1)<<r<<endl;
getch();
return 0;
}

idk why you think iostream is header file; its input output library;
that means you dont need to include .h at the end of it, and the code
i post is working perfectly with Microsoft Visual Studio as well as Dev-C++,
try it, if it still dont work i cant do much cuz its your compiler, i use different
compilers.

Some compiler dont have some libraries installed, you need to manually
install extra featurs.

-Saif