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Find prime numbers in C Language

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Prime numbers in C Language

Write a prime numbers in C Language program to generate prime numbers between 1 and n. User has to enter range of prime numbers and then program will print the prime numbers Between 1 to n.

prime numbers in C

We can find infinitely many prime numbers. Another way of saying this is that the sequence

2, 3, 5, 7, 11, 13, 17 ,19 and so on …… So you can find infinite number of prime Numbers.

Prime numbers in C Language Code

#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
int i=0,j=0,c=0,n;
printf(“\nenter range for prime numbers:”);
scanf(“%d”,&n);
printf(“\n The prime numbers between 1 to %d are: \n”,n);
for(i=1;i<=n;i++)
{
for(j=1;j<=i;j++)
{
if(i%j==0)
c++;
}
if(c<=2)
printf(“%d “,i);
c=0;
}
getch();
}

 

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GCD of two integers Code in C Language

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GCD of two integers Code in C Language

Write a GCD of two integers program in C to compute the GCD of the given two integers .User need to enter two numbers a and b,which needs to be use to find GCD of two numbers.

You can take the example, the GCD(greatest common divisor) of 8 and 12 is 4.

GCD of two Numbers

GCD of two integers Code 

#include<stdio.h>
int gcd(int a, int b);
int gcd_recurse(int a, int b);
int main()
{
int a,b;
clrscr();
printf(“\nenter two nos to caluculate GCD:”);
scanf(“%d%d”,&a,&b);
printf(“\nGCD(%2d,%2d) = [%d]“, a,b, gcd(a,b));
printf(“\nGCD(%2d,%2d) = [%d]“, a,b, gcd_recurse(a,b));
getch();
return(0);
}

int gcd(int a, int b)
{
int temp;
while(b)
{
temp = a % b;
a = b;
b = temp;
}
return(a);
}

int gcd_recurse(int a, int b)
{
int temp;
temp = a % b;
if (temp == 0)
{
return(b);
}
else
{
return(gcd_recurse(b, temp));
}
}

 

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Banking project in c language source code

by 2 Comments

Banking  project in C Language

 

Statement : Develop a Banking  project in c language which will implement following features or functionality in the program .

 

  • Account Creation
  • Deposit Amount
  • Withdraw Amount
  • View Details
  • Foreign Exchange
  • Exit program

 


 #include<stdio.h>  
 #include<dos.h>  
 #include<conio.h>  
 #include<string.h>  
 #include<graphics.h>  
 #include<process.h>  
 struct bank // Bank Structure  
 {int accno;  
 char name[20];  
 float bal;  
 }b;  
 void main()  
 {int ch;  
 clrscr();  
 b:printf("\n\t\t\t\t Welcome to Aarthi Banking Corporation \n\n\n\t Please select your appropriate option...");  
 printf("\n 1. New customer \n 2. Existing customer \n 3. Exit");  
 scanf("%d",&ch);  
 switch (ch)  
 { case 1:  
      {FILE*ff;  
      ff=fopen("customer.dat","a");  
      clrscr();  
      printf("\n Welcome to Aarthi Banking Corporation (ABC.Ltd).\n It is a pleasure to have you here \n Please enter your name without spaces :");  
      scanf("%s",&b.name);  
      clrscr();  
      printf("\n Welcome %s, please enter a suitable account number",b.name);  
      scanf("%d",&b.accno);  
      printf("\n Please mention the initial deposit... Rs: ");  
      scanf("%f",&b.bal);  
      printf("\n Congratulations... Your account has been created.\nTo deposit please login as existing customer");  
      fwrite(&b,sizeof(b),1,ff);  
      fclose(ff);  
      getch();  
      clrscr();  
      goto b;  
      }break;  
 case 2:  
      {     int num,count=0,n,ch,flag;  
  int a,c,t;  
  float amount,value,temp;  
  FILE *fp;  
   clrscr();  
   printf("\n Welcome once again to Aarthi Banking Corporation (ABC)... ");  
   printf("\n\n Please Enter your Account Number");  
   scanf("%d",&num);  
   fp=fopen("customer.dat","r+");  
   rewind(fp);  
   while(!feof(fp)&&count==0)  
  { fread(&b,sizeof(b),1,fp);  
   if (b.accno==num)  
   {  count=1;  }   }  
   if(count==0)  
   {     printf("\n Wrong account number... No such user");  
   getch();  
   goto b;  }  
  else  
   { int m;  
   clrscr();  
   printf("\n Welcome %s, What service would you like to avail",b.name);  
   printf("\n 1. Deposit Amount ");  
   printf("\n 2. Withdraw Amount ");  
   printf("\n 3. View Details ");  
   printf("\n 4. Foreign Exchange");  
   printf("\n 5. Exit program");  
   printf("\n Please Enter your choice : ");  
   scanf ("%d",&m);  
   switch(m)  
   {case 1:  
   {clrscr();  
    printf("\n\n\n Dear %s, please enter the amount you wish to deposit : ",b.name);  
    scanf("%f",& amount);  
    b.bal=b.bal+amount;  
    printf("\n Your current available bank balance is %f", b.bal);  
    n=sizeof(b);  
    fseek(fp,-n,SEEK_CUR);  
    fwrite(&b,n,1,fp);  
    fclose(fp);  
    getch();  
    }break;  
    case 2:  
   {clrscr();  
    printf("\n\n\n Dear %s, please enter the amount you wish to withdraw : ",b.name);  
    scanf("%f",& amount);  
    if(b.bal-amount<=0)  
    {printf("\n Sorry, You dont have enough money in your account");  
    fclose(fp);  
    getch();  
    goto b;  
    }  
    else  
    {b.bal=b.bal-amount;  
    printf("\n Your current available bank balance is %f", b.bal);  
    getch();  
    n=sizeof(b);  
    fseek(fp,-n,SEEK_CUR);  
    fwrite(&b,n,1,fp);  
    fclose(fp);  
    goto b;  
    }  
    }break;  
    case 3:  
    { clrscr();  
    printf("\n Your Account Details are as folows...");  
    printf("\n\n Name : %s",b.name);  
    printf("\n\n Account Number : %d ",b.accno);  
    printf("\n\n Available Balance :%f ",b.bal);  
    fclose(fp);  
    printf("\n Press any key to continue...");  
    getch();   clrscr();  
    goto b;  
    }break;  
    case 4:  
    {int x;  
    float y,z;  
    clrscr();  
    printf("\n Welcome to the foreign exchange convertor section \n Select the currency you wish to convert.");  
    printf("\n 1. US Dollar");  
    printf("\n 2. Euro");  
    printf("\n 3. Pound");  
    scanf("%d",&x);  
    switch(x)  
    {  
    case 1:  
    {   printf("\n Please enter the amount of rupees you wish to convert");  
    scanf("%f",&y);  
    z=45/y;  
    printf("\n The converted rate is $ %f",z);  
    getch();  
    goto b;  
    }break;  
    case 2:  
    {   printf("\n Please enter the amount of rupees you wish to convert");  
    scanf("%f",&y);  
    z=75/y;  
    printf("\n The converted rate is euro %f",z);  
    getch();  
    goto b;  
    }break;  
    case 3:  
    {printf("\n Please enter the amount of rupees you wish to convert");  
    scanf("%f",&y);  
    z=60/y;  
    printf("\n The converted rate is pound %f",z);  
    getch();  
    goto b;  
    }break;  
    default:  
    exit(0);  
   }  }break;}}}}}

 

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Cricket Database Project

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 Cricket Database in C++

 

 #include  
 #include  
 #include  
 #include  
 #include  
 #include  
 #include  
 #include  
 #include  
 /*------------------base class--------------------------------------*/  
 class player  
 {  
   float strate,btavg,blavg;  
   int runs,wic,hiscr,bbol,overs,balls,innings,r1,w1,o1,b1,hcen,cen,i1;  
   public:  
   int mat;  
   char name[10];  
   char country[10];  
   player();  
   void getdata();  
   void update();  
   void showdata();  
   void calculation();  
   void search();  
   void modify();  
   void updatetest();  
   void menu();  
 };  
 /*----------------------constructor-------------------------------------*/  
 player::player()  
 {  
   strcpy(name," ");  
   strcpy(country," ");  
   strate=0;  
   btavg=0;  
   innings=0;  
   balls=0;  
   overs=0;  
   blavg=0;  
   runs=0;  
   wic=0;  
   mat=0;  
   hiscr=0;  
   bbol=0;  
   cen=0;  
   hcen=0;  
 }  
 /* -----------------------------fun for calculation ----------------------------*/  
 void player::calculation()  
 {  
   strate=(float)(runs/balls)*100;  
   btavg=(float)runs/innings;  
   blavg=(float)overs/wic;  
 }  
 /*---------------------- scan data from user ----------------------------------*/  
 void player::getdata()  
 {  
   cleardevice();  
   settextstyle(1,0,1);  
   outtextxy(100,50," ENTER DATA ");  
   settextstyle(0,0,1);  
   //cout<<"\n\t\t ENTER INFORMATION: \n\n";  
   cout<<"\n\n\n\t\t Name: ";  
   gets(name);  
   cout<<"\n\t\t Country: ";  
   gets(country);  
   cout<<"\n\t\t Matches: ";  
   cin>>mat;  
   cout<<"\n\t\t Innings: ";  
   cin>>innings;  
   cout<<"\n\t\t Runs: ";  
   cin>>runs;  
   cout<<"\n\t\t Balls Played: ";  
   cin>>balls;  
   cout<<"\n\t\t Fifties: ";  
   cin>>hcen;  
   cout<<"\n\t\t Hundreds: ";  
   cin>>cen;  
   cout<<"\n\t\t Overs Bowled: ";  
   cin>>overs;  
   cout<<"\n\t\t Wickets: ";  
   cin>>wic;  
   cout<<"\n\t\t Best Batting Performance: ";  
   cin>>hiscr;  
   cout<<"\n\t\t Best Bowling Performance: ";  
   cin>>bbol;  
 }  
 /*------------------------------ fun used for modification -------------------------*/  
 void player::update()  
 {  
   //cout<<"\n\n\t\t ENTER DATA OF LAST MATCH\n";  
   cleardevice();  
   settextstyle(1,0,1);  
   outtextxy(100,50," ENTER DATA OF LAST MATCH");  
   settextstyle(0,0,1);  
   cout<<"\n\n\n\t\t Runs: ";  
   cin>>r1;  
   if(r1>100)  
     cen++;  
   if(r1>50&&r1<100)  
     hcen++;  
   runs+=r1;  
   cout<<"\n\t\t Wickets: ";  
   cin>>w1;  
   wic+=w1;  
   mat++;  
   cout<<"\n\t\t OUT/NOTOUT(y/n): ";  
   char ch=getche();  
   if(ch=='y')  
     innings++;  
   cout<<"\n\t\t Overs Bowled :";  
   cin>>o1;  
   overs+=o1;  
   cout<<"\n\t\t Balls Played";  
   cin>>b1;  
   balls+=b1;  
   if(hiscr<r1) <br="">     hiscr=r1;  
   if(bbol<w1) <br="">     bbol=w1;  
 }  
 /*------------------------------------- fun for displaying the data ---------------------*/  
 void player::showdata()  
 {  
   int x=50;  
   char str[20];  
   cleardevice();  
   rectangle(50,150,610,250);  
   line(50,200,610,200);  
   for(int i=0;i<6;i++)  
   {  
     x+=80;  
     line(x,150,x,250);  
   }  
   outtextxy( 60,170,"MATCHS");  
   outtextxy(140,170,"RUNS");  
   outtextxy(220,170,"WICKETS");  
   outtextxy(300,170,"AVG(BAT)");  
   outtextxy(380,170,"AVG(BOL)");  
   outtextxy(460,170,"100`s");  
   outtextxy(540,170,"50`s");  
   outtextxy( 50,280,"BEST PERFORMANCE IN A MATCH ::");  
   outtextxy( 50,300,"RUNS : ");  
   outtextxy( 50,320,"WICKETS :");  
   sprintf(str,"%d",mat);  
   outtextxy(60,220,str);  
   sprintf(str,"%d",runs);  
   outtextxy(140,220,str);  
   sprintf(str,"%d",wic);  
   outtextxy(220,220,str);  
   sprintf(str,"%f",btavg);  
   outtextxy(300,220,str);  
   sprintf(str,"%f",blavg);  
   outtextxy(380,220,str);  
   sprintf(str,"%d",cen);  
   outtextxy(460,220,str);  
   sprintf(str,"%d",hcen);  
   outtextxy(540,220,str);  
   settextstyle(1,0,1);  
   sprintf(str,"%s",country);  
   outtextxy(50,110,str);  
   sprintf(str,"%s",name);  
   outtextxy(50,90,str);  
   settextstyle(0,0,1);  
   sprintf(str,"%d",hiscr);  
   outtextxy(130,300,str);  
   sprintf(str,"%d",bbol);  
   outtextxy(130,320,str);  
   getch();  
 }  
 fstream file,file1,tfile,tfile1;  
 int ch1;  
 /*----------------------------- main ----------------------------------------*/  
 void main()  
 {  
   player p;  
   clrscr();  
   int ch,i=0,gm,gd=DETECT;  
   char st[10];  
   int x,y;  
   x=100;  
   y=100;  
   initgraph(&gd,&gm,"g:\\tc\\bgi");  
   char pname[10],cname[10],password[10]="",c;  
   setbkcolor(BLUE);  
   while(!kbhit())  
   {  
     settextstyle(1,0,6);  
     outtextxy(150,200,"CRICKETER`S");  
     outtextxy(170,270,"DATABASE");  
   }  
   settextstyle(0,0,1);  
   cleardevice();  
   setcolor(11);  
   settextstyle(1,0,1);  
   outtextxy(100,380,"LOADING...");  
   for(i=0;i<401;i++)  
   {  
     outtextxy(100+i,400,"#");  
     if(i<400&&i>370)  
     delay(40);  
    delay(10);  
   }  
   settextstyle(0,0,1);  
   cleardevice();  
   getch();  
   //cleardevice();  
   /*------------------ starting menu ------------------*/  
   int tag;  
   tag:  
   cleardevice();  
   settextstyle(1,0,2);  
   outtextxy(200,100," 1 :: ONE DAY") ;  
   outtextxy(200,130,"   2 :: TEST") ;  
   //cin>>ch1;  
   ch1=getche();  
   ch1=ch1-'0';  
   settextstyle(0,0,1);  
   if(ch1==1)  
   {  
     do  
     {  
       cleardevice();  
       //p.menu();  
       settextstyle(1,0,2);  
       outtextxy(200,100," 1 :: ADD RECORDS ") ;  
       outtextxy(200,130," 2 :: MODIFY RECORDS ") ;  
       outtextxy(200,160," 3 :: SEARCH RECORD (NAME)") ;  
       outtextxy(200,190," 4 :: SEARCH RECORD (COUNTRY)") ;  
       outtextxy(200,220," 5 :: LIST OF PLAYER OF ONE COUNTRY") ;  
       outtextxy(200,250," 6 :: BACK") ;  
       outtextxy(200,280," 7 :: EXIT") ;  
       //cin>>ch;  
       ch=getche();  
       ch=ch-'0';  
       settextstyle(0,0,1);  
       switch(ch)  
       {  
         /*----- ODI insert ----------------------*/  
         case 1:  
         cleardevice();  
         file.open("ODI.txt",ios::in|ios::out|ios::ate);  
         file.seekp(0,ios::end);  
         p.getdata();  
         p.calculation();  
         file.write((char*)&p,sizeof(p));  
         file.clear();  
         file.close();  
         c=getch();  
         break;  
         /*------- ODI name wise search --------------------*/  
         case 3:  
         cleardevice();  
         cout<<"\n\t\t Name For Search: ";  
         gets(pname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           //if(i>250&&i<300)  
            //  delay(40);  
           delay(10);  
         }  
         cleardevice();  
         int flag=0;  
         file.open("ODI.txt",ios::in|ios::out|ios::ate);  
         file.seekp(0,ios::beg);  
         while(file.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.name,pname))  
           {  
             flag=1;  
             cout<<"\n\n";  
             p.showdata();  
             break;  
           }  
         }  
         file.clear();  
         file.close();  
         if(flag==0)  
         cout<<"\n\t\t Record Not Found";  
         //cout<<"\n\n\t\t Enter Any Key To Cont.";  
         //cin>>c;  
         c=getch();  
         break;  
         /*-------------- ODI modification -------------------------*/  
         case 2:  
         cleardevice();  
         cout<<"\n\t\tENTER PASSWORD ";  
         int i=0;  
         while(i<6)  
         {  
            password[i]=getche();  
         cout<<"*";  
         i++;  
         }  
         getch();  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           if(i>350&&i<400)  
             delay(40);  
         }  
         cleardevice();  
         if(!strcmp("vineet",password))  
         {  
           cout<<"\n\t\t Name For Modification ";  
           gets(pname);  
           flag=0;  
           file.open("ODI.txt",ios::in|ios::out|ios::ate);  
           file1.open("temp1.txt",ios::in|ios::out|ios::ate);  
           if(!tfile1)  
             cout<<"\nerror";  
           file1.seekp(0,ios::beg);  
           file.seekp(0,ios::beg);  
           while(file.read((char*)&p,sizeof(p)))  
           {  
             if(!strcmp(p.name,pname))  
             {  
               flag=1;  
               p.update();  
               p.calculation();  
               file1.write((char*)&p,sizeof(p));  
             }  
             else  
             {  
               tfile1.write((char*)&p,sizeof(p));  
             }  
           }  
           file.clear();  
           file.close();  
           file1.clear();  
           file1.close();  
           if(flag==1)  
           {  
             remove("ODI.txt");  
             rename("temp1.txt","ODI.txt");  
           }  
           if(flag==0)  
             cout<<"\n\t\t Record Not Found";  
         }  
         else  
           cout<<"\n\t\t Wrong Password";  
         c=getch();  
         break;  
         /*------------ ODI country wise search --------------*/  
         case 4:  
         cleardevice();  
         cout<<"\n\t\t Country`s Name For Search: ";  
         gets(cname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           //if(i>333&&i<400)  
            //  delay(40);  
         }  
         cleardevice();  
         flag=0;  
         file.open("ODI.txt",ios::in|ios::out|ios::ate);  
         file.seekp(0,ios::beg);  
         while(file.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.country,cname))  
           {  
             flag=1;  
             cout<<"\n\n";  
             p.showdata();  
           }  
         }  
         file.clear();  
         file.close();  
         if(flag==0)  
           cout<<"\n\t\t Record Not Found";  
         //cout<<"\n\n\t\t Enter Any Key To Cont.";  
         //cin>>c;  
         c=getch();  
         break;  
         /*------ ODI list of players ---------------------*/  
         case 5:  
         cleardevice();  
         cout<<"\n\t\t Country`s Name For Search: ";  
         gets(cname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
         }  
         cleardevice();  
         flag=0;  
         file.open("ODI.txt",ios::in|ios::out|ios::ate);  
         file.seekp(0,ios::beg);  
         while(file.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.country,cname))  
           {  
             flag=1;  
             settextstyle(1,0,1);  
             //cout<<"\n\n\t\t"<<p.name; <br="">

             sprintf(st,"%s",p.name);  
             outtextxy(x,y,st);  
             y=y+30;  
             settextstyle(0,0,1);  
           }  
         }  
         file.clear();  
         file.close();  
         if(flag==0)  
         cout<<"\n\t\t Record Not Found";  
         //cout<<"\n\n\t\t Enter Any Key To Cont.";  
         //cin>>c;  
         c=getch();  
         break;  
         case 6:  
         goto tag;  
         //break;  
         case 7:  
         exit(0);  
         break;  
       }  
     }while(1);  
   }  
   if(ch1==2)  
   {  
     do  
     {  
       cleardevice();  
       //p.menu();  
       settextstyle(1,0,2);  
       outtextxy(200,100," 1 :: ADD RECORDS ") ;  
       outtextxy(200,130," 2 :: MODIFY RECORDS ") ;  
       outtextxy(200,160," 3 :: SEARCH RECORD (NAME)") ;  
       outtextxy(200,190," 4 :: SEARCH RECORD (COUNTRY)") ;  
       outtextxy(200,220," 5 :: LIST OF PLAYER OF ONE COUNTRY") ;  
       outtextxy(200,250," 6 :: BACK") ;  
       outtextxy(200,280," 7 :: EXIT") ;  
       //cin>>ch;  
       ch=getche();  
       ch=ch-'0';  
       settextstyle(0,0,1);  
       switch(ch)  
       {  
         /*------------------ TEST insert ------------------*/  
         case 1:  
         cleardevice();  
         tfile.open("TEST.txt",ios::in|ios::out|ios::ate);  
         tfile.seekp(0,ios::end);  
         p.getdata();  
         p.calculation();  
         tfile.write((char*)&p,sizeof(p));  
         tfile.clear();  
         tfile.close();  
         break;  
         /*------------------ TEST name wise search ------------------*/  
         case 3:  
         cleardevice();  
         cout<<"\n\t\t Name For Search: ";  
         gets(pname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           if(i>350&&i<400)  
             delay(40);  
         }  
         cleardevice();  
         int flag=0;  
         tfile.open("TEST.txt",ios::in|ios::out|ios::ate);  
         tfile.seekp(0,ios::beg);  
         while(tfile.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.name,pname))  
           {  
             flag=1;  
             cout<<"\n\n";  
             p.showdata();  
             break;  
           }  
         }  
         tfile.clear();  
         tfile.close();  
         if(flag==0)  
         cout<<"\n\t\t Record Not Found";  
         c=getch();  
         break;  
         /*------------------ TEST modification ------------------*/  
         case 2:  
         cleardevice();  
         cout<<"\n\t\tENTER PASSWORD";  
         int i=0;  
         while(i<6)  
         {  
            password[i]=getche();  
         cout<<"*";  
         i++;  
         }  
         getch();  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           if(i>350&&i<400)  
             delay(40);  
         }  
         cleardevice();  
         if(!strcmp("vineet",password))  
         {  
           cout<<"\n\t\t Name For Modification ";  
           gets(pname);  
           flag=0;  
           tfile.open("TEST.txt",ios::in|ios::out|ios::ate);  
           tfile1.open("temp1.txt",ios::in|ios::out|ios::ate);  
           if(!tfile1)  
             cout<<"\nerror";  
           tfile1.seekp(0,ios::beg);  
           tfile.seekp(0,ios::beg);  
           while(tfile.read((char*)&p,sizeof(p)))  
           {  
             if(!strcmp(p.name,pname))  
             {  
               flag=1;  
               cout<<"\n\t\t Enter Data For First Inning: ";  
               p.update();  
               cout<<"\n\t\t Enter Data For Second Inning: ";  
               p.update();  
               p.mat--;  
               p.calculation();  
               tfile1.write((char*)&p,sizeof(p));  
             }  
             else  
             {  
               tfile1.write((char*)&p,sizeof(p));  
             }  
           }  
           tfile.clear();  
           tfile.close();  
           tfile1.clear();  
           tfile1.close();  
           if(flag==1)  
           {  
             remove("TEST.txt");  
             rename("temp1.txt","TEST.txt");  
           }  
           if(flag==0)  
             cout<<"\n\t\t Record Not Found";  
         }  
         else  
           cout<<"\n\t\t Wrong Password";  
         c=getch();  
         break;  
         /*------------------ TEST country wise search ------------------*/  
         case 4:  
         cleardevice();  
         cout<<"\n\t\t Country`s Name For Search: ";  
         gets(cname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           if(i>350&&i<400)  
             delay(40);  
         }  
         cleardevice();  
         flag=0;  
         tfile.open("TEST.txt",ios::in|ios::out|ios::ate);  
         tfile.seekp(0,ios::beg);  
         while(tfile.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.country,cname))  
           {  
             flag=1;  
             cout<<"\n\n";  
             p.showdata();  
           }  
         }  
         tfile.clear();  
         tfile.close();  
         if(flag==0)  
         cout<<"\n\t\t Record Not Found";  
         break;  
         /*------------------ TEST list ------------------*/  
         case 5:  
         cleardevice();  
         cout<<"\n\t\t Country`s Name For Search: ";  
         gets(cname);  
         cleardevice();  
         setcolor(10);  
         outtextxy(100,380,"LOADING...");  
         for(i=0;i<401;i++)  
         {  
           outtextxy(100+i,400,"#");  
           delay(10);  
           if(i>350&&i<400)  
             delay(40);  
         }  
         cleardevice();  
         flag=0;  
         tfile.open("TEST.txt",ios::in|ios::out|ios::ate);  
         tfile.seekp(0,ios::beg);  
         while(tfile.read((char*)&p,sizeof(p)))  
         {  
           if(!strcmp(p.country,cname))  
           {  
             flag=1;  
             settextstyle(1,0,1);  
             //cout<<"\n\n\t\t"<<p.name; <br="">

             sprintf(st,"%s",p.name);  
             outtextxy(x,y,st);  
             y=y+30;  
             settextstyle(0,0,1);  
             //cout<<"\n\n\t\t"<<p.name; <br="">

           }  
         }  
         file.clear();  
         file.close();  
         if(flag==0)  
         cout<<"\n\t\t Record Not Found";  
         //char c;  
         //cout<<"\n\n\t\t Enter Any Key To Cont.";  
         //cin>>c;  
         c=getch();  
         break;  
         case 6:  
         goto tag;  
         case 7:  
         exit(0);  
         break;  
       }  
     }while(1);  
   }  
 }  
 /* ------------------------------end of main -------------------------------*/

 
 

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Exception Handling in C++ Language

by Leave a Comment

Exception Handling in C++ Language

Create a class named Television that has data members to hold the model number and the screen size in inches,and the price for Exception Handling in C++ program.Member functions include overloaded insertion and extraction operators.If more than four digits are entered for the model,if the screen size is smaller than 12 or greater than 70 inches, or if the price is negative or over $5000 then throw an integer.

Write a main() function that instantiates a television object,allows user to enter data and displays the data members .If an exception is caught ,replace all the data member values with zero values .

Exception Handling in C++ Code

#include  
 #include  
 void test(int,int,int);  
 class television  
 {  
   public:  
   int mod_no,price,size;  
   void operator<<(telivision a)  
   {  
     cout<<"\n\t## INPUT ##";  
     cout<<"\n\tENTER THE MODEL NO.:";  
     cin>>mod_no;  
     cout<<"\n\tENTER THE SIZE:";  
     cin>>size;  
     cout<<"\n\tENTER THE PRICE:";  
     cin>>price;  
     test(mod_no,price,size);  
     getch();  
   }  
   void operator>>(television a)  
   {  
     cout<<"\n\t## DISPLAY ##)";  
     cout<<"\nMODEL NO.:"<<mod_no<<"\nsize:"<<size<<"\nprice:"<<price; <br="">     getch();  
   }  
 };  
 void test(int mod_no,int price,int size)  
 {  
   if(mod_no>=10000)  
     throw(1);  
   if(price>5000)  
     throw(2);  
   if(price<0)  
     throw(3);  
   if(size<12)  
     throw(4);  
   if(size>70)  
     throw(5);  
 }  
 void main()  
 {  
   int ch,i;  
   television n,o;  
   do  
   {  
     cout<<"\n\t##### MAIN MENU #####";  
     cout<<"\n\t1.INPUT";  
     cout<<"\n\t2.DISPLAY";  
     cout<<"\n\t3.EXIT";  
     cout<<"\n\tENTER UR CHOICE:";  
     cin>>ch;  
     switch(ch)  
     {  
       case 1:  
         try  
         {  
           n<<o; <br="">         }  
         catch(int i)  
         {  
           if(i==1)  
             cout<<"\nMODEL NO IS NOT CORRECT";  
           else if(i==2)  
             cout<<"\nPRICE IS NOT CORRECT";  
           else if(i==3)  
             cout<<"\nPRICE IS NEGATIVE";  
           else if(i==4)  
             cout<<"\nSIZE IS VERY SMALL";  
           else if(i==5)  
             cout<<"\nSIZE IS VERY LARGE";  
           n.mod_no=0;  
           n.price=0;  
           n.size=0;  
         }  
         getch();  
         break;  
       case 2: n>>o;  
         getch();  
         break;  
       case 3: break;  
     }  
   }while(ch!=3);  
 }

 

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Student Database using Virtual functions in C++

by 1 Comment

Student Database using Virtual functions in C++

Design a base class consisting of the data members such as name of the student,roll number and subject.The derived class consists of the data members subject code,internal assessment and university examination marks.Construct a virtual base class for the item name of the student and roll number.The program should have the facilities.

  • Build a master table
  • List a table
  • Insert a new entry
  • Delete old entry
  • Edit an entry
  •  Search for a record

Student Database using Virtual functions in C++Code

 #include  
 #include  
 #include  
 #include  
 class assessment;  
 class student  
 {  
   char name[20],sub[20];  
   int rno,sub_code,in,uni;  
   public:  
   friend assessment;  
 };  
 class assessment  
 {  
   int internal,uni_marks;  
   public:  
   void menu();  
   void input(student *S);  
   void display(student *S);  
   int rlno(student *S);  
   void del(student *S);  
   void modify(student *S);  
 };  
 void assessment::input(student *S)  
 {  
   cout<<"\nEnter name : ";  
   gets(S->name);  
   cout<<"\nEnter Roll no : ";  
   cin>>S->rno;  
   cout<<"\nEnter subject : ";  
   gets(S->sub);  
   cout<<"\nEnter sub code : ";  
   cin>>S->sub_code;  
   cout<<"\nEnter Internal marks : ";  
   cin>>internal;  
   S->in=internal;  
   cout<<"\nEnter University exam marks : ";  
   cin>>uni_marks;  
   S->uni=uni_marks;  
 }  
 void assessment::display(student *S)  
 {  
   cout<<"\n"<rno;  
   cout<<"\t"<name;  
   cout<<"\t"<sub;  
   cout<<"\t"<sub_code;  
   cout<<"\t"<in;  
   cout<<"\t"<uni;  
 }  
 void assessment::menu()  
 {  
   cout<<"\t\t\t"<<"STUDENT DATABASE MANAGENENT"<<endl<<"\n1.create"<<endl; <br="">   cout<<"2.Display"<<endl<<"3.insert"<<endl; <br="">   cout<<"4.Delete"<<endl<<"5.modify"; <br="">   cout<<endl<<"6.search"<<endl<<"7.exit"; <br=""> }  
 int assessment::rlno(student *S)  
 {  
   return (S->rno);  
 }  
 void assessment ::modify(student *S)  
 {  
   int ch;  
   do  
   {  
     clrscr();  
     cout<<"EDIT"<<endl<<"1.roll no"<<endl<<"2.name";="" <br="">     cout<<endl<<"3.subject"<<endl<<"4.sub code"<<endl<<"5.int="" assesment";="" <br="">     cout<<endl<<"6.uni exam"<<endl<<"7.exit";="" <br="">     cin>>ch;  
     switch(ch)  
     {  
       case 1:  
          cout<<endl<<"new roll="" no="" :="" ";="" <br="">          cin>>S->rno;  
          break;  
       case 2:  
          cout<<endl<<"new name="" :="" ";="" <br="">          gets(S->name);  
          break;  
       case 3:  
          cout<<endl<<"new subject="" :="" ";="" <br="">          cin>>S->sub;  
          break;  
       case 4:  
          cout<<endl<<"new code="" :="" ";="" <br="">          cin>>S->sub_code;  
          break;  
       case 5:  
          cout<<endl<<"new int="" assessment="" :="" ";="" <br="">          cin>>internal;  
          break;  
       case 6:  
          cout<<endl<<"new university="" marks="" :="" ";="" <br="">          cin>>uni_marks;  
          break;  
       case 7:  
          break;  
       default:  
           cout<<"Invalid Choice";  
     }  
   }while(ch!=7);  
 }  
 void main()  
 {  
   fstream inoutf;  
   ifstream inf;  
   student S;  
   assessment A;  
   int ch,flag=0,ct=0;  
   int r;  
   char c;  
   do  
   {  
     clrscr();  
     flag=0;  
     A.menu();  
     cout<<"\n\nEnter your choice : ";  
     cin>>ch;  
     clrscr();  
     switch(ch)  
     {  
       case 1:  
          inoutf.open("student.txt",ios::out|ios::binary);  
          do  
          {  
           A.input(&S);  
           inoutf.write((char*) &S,sizeof(S));  
           cout<<"Want to enter again y/n";  
           cin>>c;  
          }while(c=='y');  
          inoutf.close();  
          break;  
       case 2:  
          inf.open("student.txt",ios::in|ios::binary );  
          inf.seekg(0);  
          cout<<"\nRNo\tName\tSub\tCode\tAsmnt\tMarks";  
          //while(!inf.eof())  
          while(inf.read((char*)&S,sizeof(S)))  
          {  
           A.display(&S);  
          }  
          inf.close();  
          break;  
       case 3:  
          inoutf.open("student.txt",ios::out|ios::binary|ios::app);  
          inoutf.clear();  
          A.input(&S);  
          inoutf.write((char*)&S,sizeof(S));  
          inoutf.close();  
          break;  
       case 4:  
          cout<<"Enter Roll no to be deleted : ";  
          cin>>r;  
          inf.open("student.txt",ios::in|ios:: binary);  
          inoutf.open("temp.txt",ios::in|ios::out|ios::binary|ios::app);  
          inf.seekg(0);  
          while(inf.read((char*) & S,sizeof(S)))  
          {  
           if(r==A.rlno(&S))  
           {  
             flag=1;  
             //break;  
           }  
           else  
           {  
             inoutf.write((char*)&S,sizeof(S));  
           }  
          }  
          if(flag!=1)  
           cout<<"\n\nRoll no not found";  
          else  
           cout<<"\n\nDeleted";  
          inf.close();  
          inoutf.close();  
          remove("student.txt");  
          rename("temp.txt","student.txt");  
          break;  
       case 5:  
          ct=0;  
          cout<<"Enter Roll no to be modified : ";  
          cin>>r;  
          inoutf.open("student.txt",ios::in|ios:: binary|ios::out);  
          inoutf.seekg(0);  
          while(inoutf.read((char*) & S,sizeof(S)))  
          {  
           if(r==A.rlno(&S))  
           {  
             flag=1;  
             break;  
           }  
           ct++;  
          }  
          if(flag!=1)  
           cout<<"\n\nRoll no not found";  
          else  
          {  
           ct=ct*sizeof(S);  
           inoutf.seekg(ct,ios::beg);  
           A.modify(&S);  
           inoutf.write((char*)&S,sizeof(S));  
          }  
          inoutf.close();  
          break;  
       case 6:  
          inf.open("student.txt",ios::in |ios::binary );  
          inf.seekg(0);  
          cout<<"Enter Roll no to be searched : ";  
          cin>>r;  
          //while(!inf.eof())  
          while(inf.read((char*)&S,sizeof(S)))  
          {  
           if(r==A.rlno(&S))  
           {  
             flag=1;  
             break;  
           }  
           else  
             flag=0;  
          }  
          if(flag==1)  
          {  
           cout<<"\n\nRecord found";  
           cout<<"\nRNo\tName\tSub\tCode\tAsmnt\tMarks";  
           A.display(&S);  
          }  
          else  
           cout<<"\nRecord not found";  
          inf.close();  
       case 7:  
          break;  
       default:  
           cout<<"Invalid dirn";  
     }  
     getch();  
   }while(ch!=7);  
  inoutf.close();  
 }

 

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