Home ยป Updates ยป Learn C++ Tutorial 8

Today we have to discuss about input and output function. By using these function we must declare header file which name iostream.

If You use iostream.h in dev c++ there must be an error during the compilation of the program.

So I suggest you to use #include<iostream> and then using namespace std.

Simple program of Dev c++.


using namespace std;

int main(){

cout<<“Hello World”


This gives Hello world output IDE.

Now we talk about the input function which means to take the value from the user and display on-screen by using cin function.

Now we discuss a simple program in which takes a number from user and print on the screen by using cin.



using namespace std;

int main(){

int num;

cout<<“Please Enter the Number”;


cout<<“You enter :”<<num;


Hopefully this tutorial is helpful for your learning process.

Must watch the video to learn more.

Click Here to Watch the Video


Download DEV C++ by This Link


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