more class problems C++

BossArky

Am I doing something reall stupid and wrong here?

These are the errors I'm getting...I'm looking on the web and cannot find any reason for my errors.

---

Configuration: practice_classes - Win32 Debug

---

Compiling...
practice_classes.cpp
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(14) : error C2599: 'get_input' : local class member functions must be defined within the class
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(14) : see declaration of 'get_input'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(15) : error C2599: 'display_input' : local class member functions must be defined within the class
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(15) : see declaration of 'display_input'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(18) : error C2144: syntax error : missing ')' before type 'void'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(18) : error C2352: 'main::info::get_input' : illegal call of non-static member function
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(14) : see declaration of 'get_input'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(18) : error C2059: syntax error : ')'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(19) : error C2143: syntax error : missing ';' before '{'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(20) : error C2065: 'character' : undeclared identifier
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(21) : error C2065: 'integer' : undeclared identifier
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(24) : error C2144: syntax error : missing ')' before type 'void'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(24) : error C2352: 'main::info::display_input' : illegal call of non-static member function
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(15) : see declaration of 'display_input'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(24) : error C2059: syntax error : ')'
C:\Program Files\Microsoft Visual Studio\MyProjects\practice_classes\practice_classes.cpp(25) : error C2143: syntax error : missing ';' before '{'
Error executing cl.exe.

---

#include<iostream.h>
#include<conio.h>
int main()
{


class info
{
private:
char character;
int integer;

public:
get_input(void);
display_input(void);
};

info::get_input(void)
{
cin>>character;
cin>>integer;
}

info::display_input(void)
{
cout<<character;
cout<<integer;
}

getch();
return 0;
}

seamus

You have your class within your main method. That's not the way it works

Your main method is what is executed when you run the program. A class is a set of parameters and functions that allow you to do stuff to an object *within* the main method.

In the main method you want to execute instructions in a sequential order, and produce some output. When you write a class, you are declaring *how* functions operate, and *how* to produce your output, but you're not actually doing it.

If that makes any sense.

BossArky

Agh, ok nice one, it works now

another questions...when I use getch() it often works correctly...however in the program below it doesn't wait for a keystroke...I suppose this is because it is after main's return 0;....but I had it before the return 0; initially and waited for a keystroke..then output the data and quit rapidly without giving me time to observe the screen.

Where exactly should I put getch() in a program like this?

---

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



class info
{
private:
char character;
int integer;

public:
get_input(void);
display_input(void);
};

int main()
{

info stuff;
stuff.get_input();
stuff.display_input();


return 0;
getch();
}


info::get_input(void)
{
cout<<"Enter char"<<endl;
cin>>character;
cout<<"Enter int"<<endl;
cin>>integer;
}

info::display_input(void)
{
cout<<"\nChar was: ";
cout<<character;
cout<<"\nInt was: ";
cout<<integer;
}

Enygma

The getch() in the above code won't be executed as it's after the return 0;

You could do something like this:

char dummy;

.
.
.
int main()
{
.
.
// code to be executed
cin >> dummy; // waits for input

return 0;
}