help with C++ Class, very easy question
 

Like I wrote before, I got very little time to learn and understand C++, so I'm doing as hard as possible when I'm not at work, so if you can help me to make this code compileable I'd thank you alot :]



I've made a class so I can practise it a bit... couldn't find more compiling errors since I don't understand it much...
But I hope you can help me to fix my code...

This code is a Window, that you can change size, print size, print x,y, print a sentance on it, etc.
here's the compiling errors :
Or maybe I didn't do it good at all? I don't know, I'd be happy if you can help me.

Thanks!!! :study:

Seems like you mixed up the class and its instance. window is an instance of Window, so what you need is window.changesize(15,15) for example.

thanks but it seems that I messed it up more


The NEW COMPILING ERROR (Much worse?)

What shall I do now?
Thanks

Sorry, but there are quite a number of flaws in that code. For example:

• You want to use instance variables x,y, and you probably also want to use these in the constructor. Then you must not declare the variables in the constructor.
• What do you want window.size to do with its arguments? Just compute the product and return the result? Without using the instance variables or anything like that?
• Remove the ";" after "window.size(typex,typey)" twice.
• You probably want to use "char s_word[20];"
• window.message and window.printsize don't return anything, so there's nothing you can pass to cout.
• window.~Window();

... and I'm sure that's not all.

Thanks spirit
Now, the only thing I need after this compiles, it to make it work correctly like I wanted lol
It's not doing what I wanted :(

but it does compile, and it's a start.

did you read "spirit receiver"'s post?
also you want message() to say:
also printsize() doesn't do anything with its arguments, it might as well not have them

#include <iostream>
using namespace std;

class Window {

public:
Window(int m_x=0, int m_y=0) {
y = m_y;
x = m_x;
}
~Window() { x = 0;
y = 0;
}
int x,y;
int size(int x,int y) {
return x*y; }



int changesize(int m_x, int m_y)
{
x = m_x;
y = m_y;
return 0;
}
int message(char mes[20]) {
cout << mes << endl;
return(0);
}
int printsize(int m_x, int m_y) {
cout << "x is " << x <<
endl;
cout << "y is " << y <<
endl;
return(0);

}

};

int main() {
int typex=0, typey=0;
Window window(10,10);
cout << "Window Size Function : size check is : " <<
window.size(typex,typey) << endl;
window.changesize(15,15);
cout << "Window Changed Size Function size check is:";
cout<<window.size(typex,typey) << endl;
char s_word[20];
cout << "Enter a line ";
cin >> s_word;
cout << endl;
cout << "Window Message says : " <<
window.message(s_word) << endl;
cout << "Window Printsize (x and y sizes) " <<
window.printsize(typex, typey);
return(0);
}

This should work. I dont know if exactly you know what you are doing. But this should make output