Классы и обьекты

#pragma hdrstop
 
#include <tchar.h>
#include<conio.h>
//---------------------------------------------------------------------------
 
#pragma argsused
struct Lib
{
 char Name;
 char Author;
 char Factory;
 char City;
 int Year;
}
class HomeLibrary
{
public:
HomeLibrary();
Lib HL;
int n;
void poisk();
void dobavit();
void udalit();
void sortirovka();
};
main()
{
int n;
printf("Programma raboti s klassom Biblioteka.");
getch();
printf("Viberite odnu is trebuemih operatsiy");
getch();
printf("1.smotert vse knigi biblioteki");
printf("2.poisk knigi po avtoru");
printf("3.dobavit knigu");
printf("4.sortirovat")
switch(a)
{
case 1:{}break;
case 2:{}break;
case 3:{}break;
case 4:{}break;
}
 
 
}

#pragma hdrstop
 
#include <tchar.h>
#include<conio.h>
#include <stdio.h>
#include<stdlib.h>
//---------------------------------------------------------------------------
 
#pragma argsused
int menu();
void Dobav();
void Udalenie();
void Poisk();
void Vivod();
void Sort();
class Homelib
{
public:
 char name[50];
 char author[50];
 int year[50];
};
Homelib A[20];
 
 
 
main()
{
int n;
 
menu();
switch(n)
{
case 1:Vivod();break;
case 2:Poisk();break;
case 3:Dobav();break;
case 4:Udalenie();break;
case 5:Sort(); break;
}
return 0;
getch();
}
 
 
 
 
void Dobav()
{
printf("Dobavlenie knigi v biblioteku\n");
getch();
int i;
for(i=0;i<20;i++)
{
printf("Vvedite nazvanie knigi\n");
A[i].name=getchar();
printf("Vvedite avtora knigi");
A[i].author=getchar();
printf("Vvedite god vipuska");
scanf("%d",A[i].year);
}
}
 
void Udalenie()
{
printf("Vvedite nazvanie knigi kotoruyu hotite udalit");
char v;
int i;
v=getchar();
for(i=0;i<20;i++)
{
if(A[i].name==v)
{
A[i].name=" ";
A[i].author=" ";
A[i].year=" ";
}
}
}
void Poisk()
{
char g;
int i;
printf("Vvedite slovo poiska");
for (i = 0; i <20; i++)
{
if((A[i].name==g)||(A[i].author==g)||(A[i].year==g))
{
printf("%c  ",A[i].name );
 printf("%c  ",A[i].author );
 printf("%d  \n",A[i].year );
}
}
}
void Vivod()
{
int i;
for (i = 0; i < 20; i++)
{
printf("%c  ",A[i].name );
 printf("%c  ",A[i].author );
 printf("%d  \n",A[i].year );
}
}
void Sort()
{
int *year=0,i;
for (i = 0; i < 20; i++)
{
 if(A[i+1].year<A[i].year)
 {
 *year=A[i].year;
 N[i].year=A[i+1].year;
 N[i+1].year=*year
 printf("%d  ",A[i].year );
 printf("%c  ",A[i].name );
 printf("%c  \n",A[i].author );
}
}
}
 
int menu()
{
int n;
printf("Programma raboti s klassom Biblioteka.\n");
getch();
printf("Viberite odnu is trebuemih operatsiy\n");
getch();
printf("1.smotert vse knigi biblioteki\n");
printf("2.poisk knigi po avtoru\n");
printf("3.dobavit knigu\n");
printf("4.udalit\n");
printf("5.sortirovka po godu\n");
n=getchar();
return n;
}