new B: classes

I am working on a trasition from JAVA to C++

I was wondering if it would be possible to call classes which are in other files.... for example:

FILE 01

Code:

class no1
int multiply(int num)
{
   return (num * num);
}

FILE 02

Code:

class no2
void main()
{
   no1.multiply(numbah);   <-- or something like that
}

Maybe JAVA is just too simplified and weak... *sigh*

Any help or tips would be reeeeeally appreciated, thanx!

(all of this happens inside the same project, mind you)

I was wondering if it would be possible to call classes which are in other files.... for example:

Yes, just write the class-implementation in a file e.i. file1.cpp and the corresponding class-declaration in file1.h

Then just include the correct header. Also check up the keyword extern.

Uhm , I have no idea of what you just wrote....

he says, that you have to include the file, which includes your class



#include "classfile.hpp"

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YOUR CODE

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E.i
Put this in your header-file file1.h (prefix *.h is compiler dependent, se documentation for your´s compiler)

Code:

//This is called the declaration for the class
class Test
{
public:
Test(int pNumber);
int getNumber() const;
private:
int mnumber;
};

and this in file.cpp

Code:

//Respectivly this is called the implementation of the class
Test::Test(int pNumber)
{
mnumber = pNumber;
}

int Test::getNumber() const
{
return mnumber;
}

And if you want to use this class in main()

Code:

#include <iostream>
//Now you can use the class Test
#include "file1.h"

int main()
{
Test anobject(10);
return 0;
}

Thank you...
I will attempt to put this newfound knowledge to good use.

Once again, thank you!