Starting C++ - 01
To follow this perfectly you need:-
- A C++ Compiler
- Knowledge in programming is useful
Right, lets look at some code:
#include <iostream>
using namespace std;
// this is a comment, this is not read by the compiler.
// namespaces will be explained later.
int main() {
cout << "Hello World!" << endl;
return 0;
}
Okay, now, lets look at it line by line:-
#include <iostream>
Without this line, none of the code would work, this includes the C++ code that makes the C++ program work.
using namespace std;
As the comments below state, namespaces will be done in later articles
int main() {
This line, starts our program.
cout << "Hello World!" << endl;
This line, is the bit that displays the text onto the console window, this displays Hello World! And then as of endl; it takes a new line.
return 0;
This enters the text: Press any key to continue...
Then closes the program.
}
Ends main() {, and closes our program.
C++ Dictonary so far:
#include - includes a file to the C++ document
using namespace std; - Later articles
int main() { - Starts a C++ program
cout << "" - outputs a string to the console window, stands for console output
<< endl; - Takes a new line, stands for end line.
return 0; - Ends our console program.
Thats it for this tutorial, check back for more soon!