Saturday, December 19, 2009
Projects of C/C++
Twin Prime Numbers
{
public static void main(String[] args)
{
int LastPrime = 1;
for (int n = 0; n < 1000; n++)
{
if (isPrime(n)) // We only care about prime numbers
{
if ((n - LastPrime) == 2) // If the difference between this prime and the last prime is 2
{
System.out.println((n - 2) + " and " + n + " are twin primes"); // We have a twin prime
}
LastPrime = n; // Store the last prime so we can compare it to the next one
}
}
}
public static boolean isPrime(int n)
{
if (n <= 1) // Not prime
return false;
if (n == 2) // Prime
return true;
if (n % 2 == 0) // Divisible by 2 means it's always not a prime
return false;
// For all other numbers, test by checking the divisibility of the square root of the number
int m = (int)Math.round(Math.sqrt(n));
for (int i = 3; i <= m; i += 2)
{
if (n % i == 0)
{
return false;
}
}
return true;
}
}
Prime NUmbers
class PrimeNumber {
public static void main(String[] args) throws Exception{
int i;
BufferedReader bf = new BufferedReader(
new InputStreamReader(System.in));
System.out.println("Enter number:");
int num = Integer.parseInt(bf.readLine());
System.out.println("Prime number: ");
for (i=1; i < num; i++ ){
int j;
for (j=2; j < i; j++){
int n = i%j;
if (n==0){
break;
}
}
if(i == j){
System.out.print(" "+i);
}
}
}
}
Aotomorphic Numbers
main (int argc, char **argv)
{
long inx, num, n, ns, r1, r2;
num = atol(argv[1]);
printf("num=%ld\n", num);
for (inx = 1; inx < num; inx++)
{
n = inx;
ns = n*n;
while (n > 0)
{
r1 = n%10;
r2 = ns%10;
if (r1 != r2) break;
n = n/10;
ns = ns/10;
}
if (n == 0)
{
printf("%ld is automorphic\n", inx);
}
}
}
Project Video Lib Management
/*--------------------------------------------------------------------*/
/*--------------------------------------------------------------------*/
/*--------------------------------------------------------------------*/
/* VIDEO LIBRARY MANAGEMENT SYSTEM */
/*--------------------------------------------------------------------*/
/*--------------------------------------------------------------------*/
/*--------------------------------------------------------------------*/
#include stdio.h
#include conio.h
#include dos.h
#include string.h
#include graphics.h
#define PATH ".gi"
#define TBG textbackground(WHITE);textcolor(BLUE)
typedef struct customer
{
long id;
char name[20];
char pn[12];
char address[40];
char category;
int doj[3];
}cust;
typedef struct movie
{
long id;
char title[25];
int copy;
int cponshelf;
int issue;
char sid[20];
int loc;
}mov;
typedef struct transaction
{
long invoice;
int doi[3];
int dor[3];
char title[25];
int fine;
long cid;
char cname[20];
int copies;
int rent;
int tam;
}transaction;
cust ctr;
mov mv;
transaction tran;
FILE *fc,*fm,*ft,*tmp;
long int size;
int days,k=0;
struct date d;
void main_menu()
{
char *menu[]={"CUSTOMER SECTION",
"MOVIE SECTION",
"TRANSACTION SECTION",
"EXIT"};
char ch;
int gd=DETECT,gm,i,choice=0;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
title("MAIN MENU",180);
status();
box(0,menu[0]);
box(1,menu[1]);
box(2,menu[2]);
box(3,menu[3]);
selectbox(choice,menu[choice]);
//72 up
//80 down
//75 left
//77 right
//13 enter
//49 1
//71 Home
//79 End
//73 PgUp
//81 PgDown
//27 Escape
while((ch=getch())!=13)
{
switch(ch)
{
case 80:
case 81:
choice++;
if(choice==4)
choice=0;
selectbox(choice,menu[choice]);
for(i=0;i<=3;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
break;
case 72:
case 73:
choice--;
if(choice==-1)
choice=3;
selectbox(choice,menu[choice]);
for(i=0;i<=3;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
}
}
pressbutton(choice,menu[choice]);
switch(choice)
{
case 0:
size=sizeof(ctr);
customer();
break;
case 1:
movie();
break;
case 2:
transactions();
break;
case 3:
closegraph();
restorecrtmode();
exit(0);
}
}
customer()
{
char *menu[]={
"ADD CUSTOMER",
"MODIFY CUSTOMER",
"DELETE CUSTOMER",
"LIST CUSTOMER",
"BACK TO MAIN MENU",
"EXIT"
};
char ch;
int gd=DETECT,gm;
int i,choice=0;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
title("CUSTOMER MENU",130);
status();
box(0,menu[0]);
box(1,menu[1]);
box(2,menu[2]);
box(3,menu[3]);
box(4,menu[4]);
box(5,menu[5]);
selectbox(choice,menu[choice]);
//72 up
//80 down
//75 left
//77 right
//13 enter
//49 1
//71 Home
//79 End
//73 PgUp
//81 PgDown
//27 Escape
while((ch=getch())!=13)
{
switch(ch)
{
case 80:
case 81:
choice++;
if(choice==6)
choice=0;
selectbox(choice,menu[choice]);
for(i=0;i<=5;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
break;
case 72:
case 73:
choice--;
if(choice==-1)
choice=5;
selectbox(choice,menu[choice]);
for(i=0;i<=5;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
}
}
pressbutton(choice,menu[choice]);
closegraph();
restorecrtmode();
clrscr();
if((fc=fopen("c:customer.txt","rb+"))==NULL)
fc=fopen("c:customer.txt","wb+");
switch(choice)
{
case 0:
addcus();
break;
case 1:
rewind(fc);
modify();
break;
case 2:
delete();
break;
case 3:
listcust();
break;
case 4:
fclose(fc);
main_menu();
break;
case 5:
fclose(fc);
exit(1);
}
}
movie()
{
char *menu[]={
"ADD MOVIE",
"LIST MOVIES",
"SEARCH MOVIE",
"BACK TO MAIN MENU",
"EXIT"
};
char ch;
int gd=DETECT,gm;
int i,choice=0;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
title("MOVIE MENU",165);
status();
box(0,menu[0]);
box(1,menu[1]);
box(2,menu[2]);
box(3,menu[3]);
box(4,menu[4]);
selectbox(choice,menu[choice]);
//72 up
//80 down
//75 left
//77 right
//13 enter
//49 1
//71 Home
//79 End
//73 PgUp
//81 PgDown
//27 Escape
while((ch=getch())!=13)
{
switch(ch)
{
case 80:
case 81:
choice++;
if(choice==5)
choice=0;
selectbox(choice,menu[choice]);
for(i=0;i<=4;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
break;
case 72:
case 73:
choice--;
if(choice==-1)
choice=4;
selectbox(choice,menu[choice]);
for(i=0;i<=4;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
}
}
pressbutton(choice,menu[choice]);
closegraph();
restorecrtmode();
clrscr();
/*textcolor(4);*/
fm=fopen("c:movie.txt","rb+");
if(fm==NULL)
fm=fopen("c:movie.txt","wb+");
switch(choice)
{
case 0:
addmov();
break;
case 1:
listmov();
break;
case 2:
searchmov();
break;
case 3:
main_menu();
break;
case 4:
fclose(fm);
exit(1);
}
}
transactions()
{
char *menu[]={
"NEW TRANSACTION",
"CLOSE TRANSACTION",
"LIST TRANSACTIONS",
"SEARCH MOVIE",
"BACK TO MAIN MENU",
"EXIT"
};
char ch;
int gd=DETECT,gm,i,choice=0;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
title("TRANSACTION MENU",100);
status();
box(0,menu[0]);
box(1,menu[1]);
box(2,menu[2]);
box(3,menu[3]);
box(4,menu[4]);
box(5,menu[5]);
selectbox(choice,menu[choice]);
//72 up
//80 down
//75 left
//77 right
//13 enter
//49 1
//71 Home
//79 End
//73 PgUp
//81 PgDown
//27 Escape
while((ch=getch())!=13)
{
switch(ch)
{
case 80:
case 81:
choice++;
if(choice==6)
choice=0;
selectbox(choice,menu[choice]);
for(i=0;i<=5;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
break;
case 72:
case 73:
choice--;
if(choice==-1)
choice=5;
selectbox(choice,menu[choice]);
for(i=0;i<=5;i++)
{
if(i==choice) continue;
box(i,menu[i]);
}
}
}
pressbutton(choice,menu[choice]);
closegraph();
restorecrtmode();
clrscr();
ft=fopen("c: ransact.txt","rb+");
if(ft==NULL)
ft=fopen("c: ransact.txt","wb+");
switch(choice)
{
case 0:
addtran();
break;
case 1:
closetran();
break;
case 2:
listtran();
break;
case 3:
fm=fopen("c:movie.txt","rb+");
if(fm==NULL)
fm=fopen("c:movie.txt","wb+");
searchmov();
break;
case 4:
main_menu();
break;
case 5:
exit(0);
}
}
addcus()
{
char another='y';
fseek(fc,0,SEEK_END);
TBG;
while(another=='y'||another=='Y')
{
clrscr();
printf("******************** ADD CUSTOMER FORM ****************");
printf("CUSTOMER ID(NUMERIC) :");
printf("CUSTOMER NAME :");
printf("CUSTOMER PHONE NO :");
printf("CUSTOMER ADDRESS :");
printf("DATE OF JOINING :");
printf("CATEGORY(H/A/C/R/S/T) :");
gotorc(2,24);
customid();
gotorc(4,24);
fflush(stdin);
gets(ctr.name);
gotorc(6,24);
fflush(stdin);
gets(ctr.pn);
gotorc(8,24);
fflush(stdin);
gets(ctr.address);
gotorc(10,24);
fflush(stdin);
getdate(&d);
ctr.doj[0]=d.da_day;ctr.doj[1]=d.da_mon;ctr.doj[2]=d.da_year;
printf("%d/%d/%d",d.da_day,d.da_mon,d.da_year);
gotorc(12,24);
fflush(stdin);
ctr.category=getche();
gotorc(16,3);
printf("DO YOU WANT TO SUBMIT THIS FORM (Y/N)");
fflush(stdin);
another=getch();
if(another=='y'||another=='Y')
fwrite(&ctr,size,1,fc);
gotorc(18,3);
printf("DO YOU WANT TO ADD ANOTHER CUTOMER(Y/N)");
fflush(stdin);
another=getch();
}
fclose(fc);
customer();
}
customid()
{
rewind(fc);
if(fread(&ctr,sizeof(ctr),1,fc)!=1)
ctr.id=1;
else
{
while(fread(&ctr,sizeof(ctr),1,fc)==1);
ctr.id++;
}
printf("%ld",ctr.id);
}
modify()
{
char another='y',choice,name[20],flag='n';
long id;
TBG;
while(another=='y'||another=='Y')
{
clrscr();
rewind(fc);
printf(" SEARCH BY NAME : PRESS 1 SEARCH BY ID : PRESS 2 ");
fflush(stdin);
choice=getchar();
if(choice=='2')
{
printf("ENTER CUSTOMER ID : ");
scanf("%ld",&id);
while(fread(&ctr,size,1,fc)==1)
{
if(ctr.id==id)
{
new();
flag='y';
break;
}
}
}
if(choice=='1')
{
printf("ENTER CUSTOMER NAME : ");
fflush(stdin);
gets(name);
while(fread(&ctr,size,1,fc)==1)
{
if(strcmpi(ctr.name,name)==0)
{
new();
flag='y';
break;
}
}
}
if(flag=='n')
{
gotorc(15,3);
printf("CUSTOMER NOT FOUND............ !");
}
gotorc(18,3);
printf("DO YOU WANT TO MODIFY ANOTHER CUTOMER(Y/N)");
fflush(stdin);
another=getch();
}
fclose(fc);
customer();
}
new()
{
char another='y';
clrscr();
TBG;
fseek(fc,-size,SEEK_CUR);
printf("CUSTOMER'S NEW NAME :");
printf("CUSTOMER'S NEW PHONE NO :");
printf("CUSTOMER'S NEW ADDRESS :");
printf("NEW DATE OF JOINING (DD<-|MM<-|YYYY<-|) :");
printf("NEW CATEGORY(H/A/C/R/S/T) :");
gotorc(1,43);
fflush(stdin);
gets(ctr.name);
gotorc(3,43);
fflush(stdin);
gets(ctr.pn);
gotorc(5,43);
fflush(stdin);
gets(ctr.address);
gotorc(7,43);
fflush(stdin);
scanf("%d",&ctr.doj[0]);
gotorc(7,45);
printf("%c",'/');
scanf("%d",&ctr.doj[1]);
gotorc(7,48);
printf("%c",'/');
scanf("%d",&ctr.doj[2]);
gotorc(9,43);
fflush(stdin);
ctr.category=getche();
gotorc(16,3);
printf("UPDATE THE CUSTOMER RECORD (Y/N)");
fflush(stdin);
another=getch();
if(another=='y'||another=='Y')
fwrite(&ctr,size,1,fc);
rewind(fc);
}
listcust()
{
int i=1,p=4;
clrscr();
TBG;
rewind(fc);
printf("******************** CUSTOMERS LIST ************");
gotorc(2,3);
printf("ID");
gotorc(2,8);
printf("NAME");
gotorc(2,22);
printf("PHONE NO");
gotorc(2,35);
printf("ADDRESS");
gotorc(2,55);
printf("D.O.J");
gotorc(2,68);
printf("CATEGORY");
while(fread(&ctr,size,1,fc)==1)
{
gotorc(p,3);
printf("%ld",ctr.id);
gotorc(p,8);
printf("%s",strupr(ctr.name));
gotorc(p,22);
printf("%s",ctr.pn);
gotorc(p,35);
printf("%s",strupr(ctr.address));
gotorc(p,55);
printf("%d/%d/%d",ctr.doj[0],ctr.doj[1],ctr.doj[2]);
gotorc(p,70);
printf("%c",toupper(ctr.category));
if(i%15==0)
{
gotorc(40,3);
printf("PRESS ANY KEY TO CONTINUE.....");
getch();
clrscr();
p=4;
}
p+=2;
i++;
}
printf(" PRESS ANY KEY TO BACK TO CUSTOMER MENU");
getch();
customer();
}
delete()
{
char another='y',choice,name[20],flag='n';
long id;
tmp=fopen("c: emp.txt","wb");
rewind(fc);
TBG;
while(another=='y'||another=='Y')
{
clrscr();
printf(" DELETE BY NAME : 1 DELETE BY ID : 2 ");
fflush(stdin);
choice=getchar();
if(choice=='2')
{
printf("ENTER CUSTOMER ID : ");
scanf("%ld",&id);
clrscr();
while(fread(&ctr,size,1,fc)==1)
{
if(ctr.id!=id)
fwrite(&ctr,size,1,tmp);
else
flag='y';
}
}
if(choice=='1')
{
printf("
ENTER CUSTOMER NAME : ");
fflush(stdin);
gets(name);
clrscr();
while(fread(&ctr,size,1,fc)==1)
{
if(strcmpi(ctr.name,name)!=0)
fwrite(&ctr,size,1,tmp);
else
flag='y';
}
}
fclose(fc);
fclose(tmp);
remove("c:customer.txt");
rename("c: emp.txt","c:customer.txt");
if(flag=='n')
printf("
CUSTOMER NOT FOUND.... !");
printf("
DO YOU WANT TO DELETE ANOTHER CUTOMER(Y/N)");
fflush(stdin);
another=getch();
}
fclose(fc);
customer();
}
addmov()
{
char another='y';
TBG;
fseek(fm,0,SEEK_END);
while(another=='y'||another=='Y')
{
clrscr();
printf("*****************ADD MOVIE FORM*****************");
printf("MOVIE ID(NUMERIC) :");
printf("MOVIE NAME :");
printf("NO OF COPIES :");
printf("SUPPLIER ID :");
printf("LOCATION :");
gotorc(1,24);
movid();
gotorc(2,24);
fflush(stdin);
gets(mv.title);
gotorc(3,24);
fflush(stdin);
scanf("%d",&mv.copy);
mv.cponshelf=mv.copy;
mv.issue=0;
gotorc(4,24);
fflush(stdin);
gets(mv.sid);
gotorc(5,24);
fflush(stdin);
scanf("%d",&mv.loc);
fwrite(&mv,sizeof(mv),1,fm);
printf("DO YOU WANT TO ADD ANOTHER MOVIE(Y/N)");
fflush(stdin);
another=getch();
}
fclose(fm);
printf("PRESS ANY KEY TO BACK TO MOVIE MENU");
movie();
}
movid()
{
rewind(fm);
if(fread(&mv,sizeof(mv),1,fm)!=1)
mv.id=1;
else
{
while(fread(&mv,sizeof(mv),1,fm)==1);
mv.id++;
}
printf("%ld",mv.id);
}
listmov()
{
int i=1,p=4;
textbackground(WHITE);
textcolor(BLUE);
clrscr();
rewind(fm);
printf("******************** MOVIE LIST *****************");
gotorc(2,1);
printf("ID");
gotorc(2,5);
printf("TITLE");
gotorc(2,25);
printf("TOT_CP");
gotorc(2,35);
printf("CP_O_SHELF");
gotorc(2,48);
printf("TOT_ISSUES");
gotorc(2,59);
printf("SUPPLIER ID");
gotorc(2,71);
printf("LOCATION");
while(fread(&mv,sizeof(mv),1,fm)==1)
{
gotorc(p,1);
printf("%ld",mv.id);
gotorc(p,5);
printf("%s",strupr(mv.title));
gotorc(p,28);
printf("%d",mv.copy);
gotorc(p,40);
printf("%d",mv.cponshelf);
gotorc(p,52);
printf("%d",mv.issue);
gotorc(p,59);
printf("%s",mv.sid);
gotorc(p,74);
printf("%d",mv.loc);
if(i%10==0)
{
printf("
PRESS ANY KEY TO CONTINUE.....");
fflush(stdin);
getch();
clrscr();
p=4;
}
i++;
p+=2;
}
printf("PRESS ANY KEY TO BACK TO MOVIE MENU");
getch();
fclose(fm);
movie();
}
searchmov()
{
char mname[20],another;
TBG;
clrscr();
rewind(fm);
gotorc(5,5);
printf("ENTER MOVIE TITLE : ");
fflush(stdin);
gets(mname);
while(fread(&mv,sizeof(mv),1,fm)==1)
{
if(strcmpi(mv.title,mname)==0)
{
gotorc(7,12);
textcolor(0);
cprintf("MOVIE FOUND..");
textcolor(4);
gotorc(9,5);
printf("MOVIE TITLE : %s",mv.title);
gotorc(11,5);
printf("TOTAL NO OF COPIES : %d",mv.copy);
gotorc(13,5);
printf("NO OF COPIES AVAILABLE : %d",mv.cponshelf);
gotorc(15,5);
printf("SUPPLIER ID : %s",mv.sid);
gotorc(17,5);
printf("LOCATION : %d",mv.loc);
gotorc(20,5);
printf("DO YOU WANT TO SEARCH MORE MOVIES(Y/N)");
fflush(stdin);
another=getchar();
if(another=='y'||another=='Y')
searchmov();
fclose(fm);
movie();
}
}
gotorc(7,5);
textcolor(4);
cprintf("MOVIE NOT FOUND.....!");
textcolor(4);
gotorc(12,5);
printf("DO YOU WANT TO SEARCH MORE MOVIES(Y/N)");
fflush(stdin);
another=getchar();
if(another=='y'||another=='Y')
searchmov();
fclose(fm);
movie();
}
addtran()
{
char another='y',rec;
TBG;
fseek(ft,0,SEEK_END);
while(another=='y'||another=='Y')
{
clrscr();
printf("***************** TRANSACTION****************");
printf("INVOICE NO(NUMERIC) :");
printf("MOVIE TITLE :");
printf("COPIES AVAILABLE :");
printf("CUSTOMER ID :");
printf("CUSTOMER NAME :");
printf("NO. OF COPIES :");
printf("DATE OF ISSUE :");
gotorc(2,24);
invoice();
gotorc(4,24);
fflush(stdin);
gets(tran.title);
gotorc(6,24);
avail();
gotorc(8,24);
fflush(stdin);
scanf("%ld",&tran.cid);
custcheck();
gotorc(12,24);
fflush(stdin);
scanf("%d",&tran.copies);
if(tran.copies>mv.cponshelf)
{
gotorc(18,3);
printf("TRANSACTION NOT POSSIBLE : REQUIRED NO OF COPIES NOT
AVAILABLE");
printf("PRESS ANY KEY TO BACK TO TRANSACTION MENU");
getch();
transactions();
}
gotorc(14,24);
fflush(stdin);
getdate(&d);
tran.doi[0]=d.da_day;tran.doi[1]=d.da_mon;tran.doi[2]=d.da_year;
printf("%d/%d/%d",d.da_day,d.da_mon,d.da_year);
tran.dor[0]=0;
tran.rent=0;
gotorc(18,4);
printf("DO YOU WANT TO RECORD THIS TRANSACTION(Y/N)");
rec=getchar();
if(rec=='y'||rec=='Y')
{
update();
fwrite(&tran,sizeof(tran),1,ft);
}
printf("DO YOU WANT TO ADD ANOTHER TRANSACTION(Y/N)");
fflush(stdin);
another=getch();
}
fclose(ft);
printf("PRESS ANY KEY TO BACK TO TRANSACTION MENU");
transactions();
}
custcheck()
{
if((fc=fopen("c:customer.txt","rb"))==NULL)
fc=fopen("c:customer.txt","wb+");
rewind(fc);
while(fread(&ctr,sizeof(ctr),1,fc)==1)
{
if(ctr.id==tran.cid)
{
gotorc(10,24);
printf("%s",ctr.name);
strcpy(tran.cname,ctr.name);
fclose(fc);
return;
}
}
fclose(fc);
gotorc(18,4);
printf("INVALID CUSTOMER ............!");
gotorc(21,4);
printf("PRESS ANY KEY TO BACK TO TRANSACTION MENU");
getch();
transactions();
}
invoice()
{
rewind(ft);
if(fread(&tran,sizeof(tran),1,ft)!=1)
tran.invoice=1;
else
{
while(fread(&tran,sizeof(tran),1,ft)==1);
tran.invoice++;
}
printf("%ld",tran.invoice);
}
avail()
{
fm=fopen("c:movie.txt","rb+");
if(fm==NULL)
fm=fopen("c:movie.txt","wb+");
while(fread(&mv,sizeof(mv),1,fm)==1)
{
if(strcmpi(tran.title,mv.title)==0)
{
printf("%d",mv.cponshelf);
fclose(fm);
return;
}
}
gotorc(18,3);
printf("%s","MOVIE NOT FOUND...!");
gotorc(21,3);
printf("PRESS ANY KEY TO RETURN");
getch();
fclose(fm);
transactions();
}
update()
{
long msize;
msize=sizeof(mv);
fm=fopen("c:movie.txt","rb+");
if(fm==NULL)
fm=fopen("c:movie.txt","wb+");
while(fread(&mv,sizeof(mv),1,fm)==1)
{
if(strcmpi(tran.title,mv.title)==0)
{
mv.cponshelf=mv.cponshelf-tran.copies;
mv.issue=mv.issue+tran.copies;
fseek(fm,-msize,SEEK_CUR);
fwrite(&mv,sizeof(mv),1,fm);
break;
}
}
fclose(fm);
return;
}
listtran()
{
int i=1;
TBG;
clrscr();
rewind(ft);
while(fread(&tran,sizeof(tran),1,ft)==1)
{
printf(" INVOICE NO(NUMERIC) : %ld ",tran.invoice);
printf("CUSTOMER ID : %ld ",tran.cid);
printf("CUSTOMER NAME : %s ",tran.cname);
printf("MOVIE TITLE : %s ",tran.title);
printf("NO. OF COPIES : %d ",tran.copies);
printf("DATE OF ISSUE : %d/%d/%d
",tran.doi[0],tran.doi[1],tran.doi[2]);
if(tran.dor[0]!=0)
{
printf("DATE OF RETURN : %d/%d/%d
",tran.dor[0],tran.dor[1],tran.dor[2]);
printf("RENT : %d ",tran.rent);
printf("FINE : %d ",tran.fine);
printf("TOTAL AMOUNT : %d",tran.tam);
}
printf("........................................");
if(i%2==0)
{
printf("
PRESS ANY KEY TO CONTINUE.....");
getch();
clrscr();
}
i++;
}
fclose(ft);
printf("
PRESS ANY KEY TO BACK TO TRANSACTION MENU");
getch();
transactions();
}
closetran()
{
long id,sz;
TBG;
clrscr();
sz=sizeof(tran);
printf("
ENTER INVOICE NO: ");
scanf("%ld",&id);
clrscr();
while(fread(&tran,sz,1,ft)==1)
{
if(tran.invoice==id)
{
if(tran.dor[0]!=0)
{
gotorc(4,4);
printf("THIS TRANSACTION IS ALL READY CLOSED...!");
gotorc(7,4);
printf("PRESS ANY KEY TO BACK TO TRANSACTION MENU......");
getch();
transactions();
}
fseek(ft,-sz,1);
getdate(&d);
tran.dor[0]=d.da_day;tran.dor[1]=d.da_mon;tran.dor[2]=d.da_year;
difference();
tran.rent=tran.copies*25;
if(k==0)
tran.fine=0;
else
tran.fine=tran.copies*(k-1)*5;
tran.tam=tran.rent+tran.fine;
printf("INVOICE NO(NUMERIC) : %ld ",tran.invoice);
printf("CUSTOMER ID : %ld ",tran.cid);
printf("CUSTOMER NAME : %s ",tran.cname);
printf("MOVIE TITLE : %s ",tran.title);
printf("NO. OF COPIES : %d ",tran.copies);
printf("DATE OF ISSUE : %d/%d/%d
",tran.doi[0],tran.doi[1],tran.doi[2]);
printf("DATE OF RETURN : %d/%d/%d
",tran.dor[0],tran.dor[1],tran.dor[2]);
printf("RENT : %d ",tran.rent);
printf("FINE : %d ",tran.fine);
printf("TOTAL AMOUNT : %d ",tran.tam);
updateclose();
fwrite(&tran,sz,1,ft);
fclose(ft);
}
}
printf("PRESS ANY KEY TO BACK TO TRANSACTION MENU");
getch();
transactions();
}
difference()
{
int t,m1,m2,y1,y2,d1,d2;
d1=tran.doi[0];
d2=tran.dor[0];
m1=tran.doi[1];
m2=tran.dor[1];
y1=tran.doi[2];
y2=tran.dor[2];
t=m1;
if(y2>y1)
{
while(y2>y1)
{
while(m1<=12)
{
check(m1,y1);
if(m1==t)
k=days-d1;
else
k=k+days;
m1=m1+1;
}
m1=1;y1++;
}
while(m1
check(m1,y1);
k=k+days;
m1++;
}
k=k+d2;
}
else
{
if(m1!=m2)
{
while(m1
check(m1,y1);
if(m1==t)
k=days-d1;
else
k=k+days;
m1=m1+1;
}
k=k+d2;
}
else
k=d2-d1;
}
}
check(int m1,int y1)
{
if(m1==1||m1==3||m1==5||m1==7||m1==8||m1==10||m1==12)
days=31;
else
{
if(m1!=2)
days=30;
else
{
if(y1%4==0)
days=29;
else
days=28;
}
}
}
updateclose()
{
long msize;
msize=sizeof(mv);
fm=fopen("c:movie.txt","rb+");
if(fm==NULL)
fm=fopen("c:movie.txt","wb+");
while(fread(&mv,sizeof(mv),1,fm)==1)
{
if(strcmpi(tran.title,mv.title)==0)
{
mv.cponshelf=mv.cponshelf+tran.copies;
fseek(fm,-msize,SEEK_CUR);
fwrite(&mv,msize,1,fm);
break;
}
}
fclose(fm);
return;
}
gotorc(int r,int c)
{
union REGS i,o;
i.h.ah=2;
i.h.bh=0;
i.h.dh=r;
i.h.dl=c;
int86(16,&i,&o);
}
screen1()
{
int gd=DETECT,gm;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
setfillstyle(SOLID_FILL,WHITE);
bar(15,15,625,465);
setfillstyle(SOLID_FILL,RED);
bar(30,30,610,450);
settextstyle(1,0,8);
setcolor(WHITE);
outtextxy(190,35,"VIDEO");
setfillstyle(SOLID_FILL,LIGHTGRAY);
bar3d(180,140,385,130,20,20);
outtextxy(160,150,"LIBRARY");
bar3d(140,255,440,245,20,20);
outtextxy(165,270,"SYSTEM");
bar3d(145,375,440,365,20,20);
/* sleep(4); */
getch();
closegraph();
restorecrtmode();
}
screen2()
{
int gd=DETECT,gm;
initgraph(&gd,&gm,PATH);
setfillstyle(SOLID_FILL,RED);
bar(0,0,640,480);
setfillstyle(SOLID_FILL,WHITE);
bar(15,15,625,465);
setfillstyle(SOLID_FILL,RED);
bar(30,30,610,450);
setfillstyle(SOLID_FILL,LIGHTGRAY);
bar3d(180,100,420,300,25,25); /*members bar*/
settextstyle(1,1,10);
setcolor(WHITE);
outtextxy(10,55,"IIMS");
setfillstyle(SOLID_FILL,LIGHTGRAY);
bar3d(180,50,420,70,20,20); /*project members bar*/
bar3d(50,350,570,420,25,25); /*project guide bar*/
setcolor(BLUE);
settextstyle(1,0,2);
outtextxy(193,48,"PROJECT MEMBERS");
outtextxy(193,130,"MANISH MISHRA");
outtextxy(193,170,"VISHAL YADAV");
outtextxy(193,210,"SHIV KUMAR RAI");
outtextxy(193,250,"DINESH YADAV");
outtextxy(235,351,"PROJECT GUIDE:");
settextstyle(1,0,5);
outtextxy(140,373,"MR. AMIT TANEJA");
/* sleep(4); */
getch();
closegraph();
restorecrtmode();
}
box(int i,char *p)
{
setfillstyle(SOLID_FILL,WHITE);
bar(179,108+55*i,409,138+55*i);
setfillstyle(SOLID_FILL,LIGHTGRAY);
bar(180,110+55*i,410,140+55*i);
setcolor(BLUE);
// setfillstyle(SOLID_FILL,BLUE);
settextstyle(1,0,2);
outtextxy(184,110+55*i,p);
/* getch();
setfillstyle(SOLID_FILL,WHITE);
bar(180,60,390,90);
setfillstyle(SOLID_FILL,RED);
bar(179,59,389,89); */
/* bar3d(180,100,420,300,-25,25);*/ /*members bar*/
/* closegraph();
restorecrtmode(); */
}
selectbox(int i,char *p)
{
setfillstyle(SOLID_FILL,WHITE);
bar(179,108+55*i,409,138+55*i);
setfillstyle(SOLID_FILL,9);
bar(180,110+55*i,410,140+55*i);
setcolor(WHITE);
// setfillstyle(SOLID_FILL,BLUE);
settextstyle(1,0,2);
outtextxy(184,110+55*i,p);
/* getch();
setfillstyle(SOLID_FILL,WHITE);
bar(180,60,390,90);
setfillstyle(SOLID_FILL,RED);
bar(179,59,389,89); */
/* bar3d(180,100,420,300,-25,25);*/ /*members bar*/
/* closegraph();
restorecrtmode(); */
}
pressbutton(int i,char *p)
{
setfillstyle(SOLID_FILL,WHITE);
bar(180,110+55*i,410,140+55*i);
setfillstyle(SOLID_FILL,9);
bar(179,108+55*i,409,138+55*i);
setcolor(CYAN);
settextstyle(1,0,2);
outtextxy(184,110+55*i,p);
delay(350);
}
title(char *title,int x)
{
setfillstyle(SOLID_FILL,9);
bar(0,0,640,50);
setcolor(BLACK);
settextstyle(1,0,5);
outtextxy(x,0,title);
}
status()
{
setfillstyle(SOLID_FILL,9);
bar(0,450,640,480);
setcolor(BLACK);
settextstyle(1,0,3);
outtextxy(30,450,"USE UP & DOWN ARROW KEYS TO SELECT AN OPTION");
}
void main()
{
screen1();
screen2();
main_menu();
}
WAP to print a msg in C++
Saturday, May 23, 2009
Loops
For
While
Do....while
for loop : we use for loop when we know in advance for how many number set of statements will repeat.
Friday, February 20, 2009
Operator precedence
The syntax of expressions in C and C++ is specified by a context-free grammar. The table given here has been inferred from the grammar.
A precedence table, while mostly adequate, cannot resolve a few details. In particular, note that the ternary operator allows any arbitrary expression as its middle operand, despite being listed as having higher precedence than the assignment and comma operators. Thus a ? b , c : d is interpreted as a ? (b, c) : d, and not as the meaningless (a ? b), (c : d). Also, note that the immediate, unparenthesized result of a C cast expression cannot be the operand of sizeof. Therefore, sizeof (int) * x is interpreted as (sizeof(int)) * x and not sizeof ((int) *x).
Operators
- Operators are represented by Symbols.
- Each operator has its predefine working
- Operator use operands to perform an operation.
- Operators are devided in following categorey
- Ariethmatic
- Relational
- Logical
Wednesday, January 21, 2009
Basic programing of C
So you want to learn C? We hope to provide you with an easy step by step guide to programming in C. The course is split up into several sections, or lessons, which include C example programs for you to demonstrate what has been taught. Although the ordering of the sections does not have to be strictly followed, the sections become progressively more involved and assume background knowledge attained from previous sections. Good Luck!
C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. It has since spread to many other platforms. Although C was designed as a system implementation languageit is also widely used for applications. C has also greatly influenced many other popular languages, especially C++, which was originally designed as an extension to C.
Philosophy
C is an imperative (procedural) systems implementation language. Its design goals were for it to be compiled using a relatively straightforward compiler, provide low-level access to memory, provide language constructs that map efficiently to machine instructions, and require minimal run-time support. C was therefore useful for many applications that had formerly been coded in assembly language.
Despite its low-level capabilities, the language was designed to encourage machine-independent programming. A standards-compliant and portably written C program can be compiled for a very wide variety of computer platforms and operating systems with minimal change to its source code. The language has become available on a very wide range of platforms, from embedded microcontrollers to supercomputers.
Like most imperative languages in the ALGOL tradition, C has facilities for structured programming and allows lexical variable scope and recursion, while a static type system prevents many unintended operations. In C, all executable code is contained within functions. Function parameters are always passed by value. Pass-by-reference is achieved in C by explicitly passing pointer values. Heterogeneous aggregate data types (struct) allow related data elements to be combined and manipulated as a unit. C program source text is free-format, using semicolon as a statement terminator (not a delimiter).
C also exhibits the following more specific characteristics:
non-nestable function definitions, although variables may be hidden in nested blocks
partially weak typing; for instance, characters can be used as integers
low-level access to computer memory by converting machine addresses to typed pointers
function pointers allowing for a rudimentary form of closures and runtime polymorphism
array indexing as a secondary notion, defined in terms of pointer arithmetic
a preprocessor for macro definition, source code file inclusion, and conditional compilation
complex functionality such as I/O, string manipulation, and mathematical functions consistently delegated to library routines
around 30 reserved keywords
syntax divergent from ALGOL, often following the lead of C's predecessor B, for example using
{ ... } rather than ALGOL's begin ... end
the equal-sign for assignment (copying), much like Fortran
two consecutive equal-signs to test for equality (compare to .EQ. in Fortran or the equal-sign in BASIC)
&& and in place of ALGOL's and and or, which
are syntactically distinct from the bit-wise operators & and (used by B for both meanings)
never evaluate the right operand if the result can be determined from the left alone (short-circuit evaluation)
a large number of compound operators, such as +=, ++, etc.
The initial development of C occurred at AT&T Bell Labs between 1969 and 1973; according to Ritchie, the most creative period occurred in 1972. It was named "C" because many of its features were derived from an earlier language called "B", which according to Ken Thompson was a stripped down version of the BCPL programming language.
The origin of C is closely tied to the development of the Unix operating system, originally implemented in assembly language on a PDP-7 by Ritchie and Thompson, incorporating several ideas from colleagues. Eventually they decided to port the operating system to a PDP-11. B's lack of functionality to take advantage of some of the PDP-11's features, notably byte addressability, led to the development of an early version of the C programming language.
The original PDP-11 version of the Unix system was developed in assembly language. By 1973, with the addition of struct types, the C language had become powerful enough that most of the Unix kernel was rewritten in C. This was one of the first operating system kernels implemented in a language other than assembly. (Earlier instances include the Multics system (written in PL/I), and MCP (Master Control Program) for the Burroughs B5000 written in ALGOL in 1961.)
In 1978, Brian Kernighan and Dennis Ritchie published the first edition of The C Programming Language. This book, known to C programmers as "K&R", served for many years as an informal specification of the language. The version of C that it describes is commonly referred to as "K&R C". The second edition of the book covers the later ANSI C standard.
K&R introduced several language features:
standard I/O library
long int data type
unsigned int data type
compound assignment operators =op were changed to op= to remove the semantic ambiguity created by the construct i=-10, which had been interpreted as i =- 10 instead of the possibly intended i = -10
Even after the publication of the 1989 C standard, for many years K&R C was still considered the "lowest common denominator" to which C programmers restricted themselves when maximum portability was desired, since many older compilers were still in use, and because carefully written K&R C code can be legal Standard C as well.
During the late 1970s and 1980s, versions of C were implemented for a wide variety of mainframe computers, minicomputers, and microcomputers, including the IBM PC, as its popularity began to increase significantly.
In 1983, the American National Standards Institute (ANSI) formed a committee, X3J11, to establish a standard specification of C. In 1989, the standard was ratified as ANSI X3.159-1989 "Programming Language C." This version of the language is often referred to as ANSI C, Standard C, or sometimes C89.
In 1990, the ANSI C standard (with a few minor modifications) was adopted by the International Organization for Standardization (ISO) as ISO/IEC 9899:1990. This version is sometimes called C90. Therefore, the terms "C89" and "C90" refer to essentially the same language.
One of the aims of the C standardization process was to produce a superset of K&R C, incorporating many of the unofficial features subsequently introduced. However, the standards committee also included several new features, such as function prototypes (borrowed from C++), void pointers, support for international character sets and locales, and preprocessor enhancements. The syntax for parameter declarations was also augmented to include the C++ style