Re: Gigantic Class

"Immortal Nephi" <Immortal_Nephi@hotmail.com> ha scritto nel messaggio
news:dcc957fe-3558-4f5b-a7a0-4c819a003d52@u1g2000pre.googlegroups.com...


....
i find the word "private" and "protected" not useful
like the word "const".
in my code where is the problem?
--------------------------------------------

there is someone that in few line of C++ code (that runs)
can show (or better make the debugger show)
the useful of that words?

it seems to understand the word "protected" could be
useful for not make happen wrong operator overloading
or something of that, right?

thanks
--------------------------------------------

#include <iostream>
#include <list>
#include <string>
#include <cstdio>

#define P printf
using namespace std;

class A
{public:
  A():a(1),b(2){}
 ~A(){}
 int a;
 int b;
};

class B : public A
{public:
 B():c(3),d(4){}
~B() {}
 int c;
 int d;
};
--------------
a=101
b 2
c=303
d=404
e=505
f=606
g=707
h=808
i=900
j=1000

class C : public B
{public:
 C():e(5),f(6){}
~C(){}
 int e;
 int f;
};

class D : public C
{public:
 D():g(7),h(8){}
~D() {}
 void Run()
 {a+=100;
  b+ 0;
  c+=300;
  d+=400;
  e+=500;
  f+=600;
  g+=700;
  h+=800;
 }
 int g;
 int h;
};

class E : public D
{public:
 E():i(9),j(10){}
~E(){}
 void Run()
 {D::Run();
  i = 900;
  j = 1000;
 }

 void print()
 {P("a=%d\n", a);
  P("b=%d\n", b);
  P("c=%d\n", c);
  P("d=%d\n", d);
  P("e=%d\n", e);
  P("f=%d\n", f);

  P("g=%d\n", g);
  P("h=%d\n", h);
  P("i=%d\n", i);
  P("j=%d\n", j);
 }

 int i;
 int j;
};

int main()
{E e; // object e is the interface
 e.Run(); // Run() is available to client.
 e.print();
 return 0;
}