PROGRAMS ON CLASS AND OBJECTS:

1.Write a c++ program using class to store list of items and manipulate those using prices.

//program using a class to store price list of 50 items .#include<iostream.h>#include<conio.h>class item{ private:

int itcode[3];float itprice[3];public:void ini();float largest();float sum();void displayit();};

void item::ini(void){for(int i=0;i<3;i++){cout<<"\n"<<"item no"<<(i+1);cout<<"\n"<<"enter item code";cin>>itcode[i];cout<<"\n"<<"enter item price";cin>>itprice[i];cout<<"\n";}}float item::largest(void){float large=itprice[0];for(int i=0;i<3;i++){if(itprice[i]>large)large=itprice[i];}return large;}float item::sum(void){float sum=0;for(int i=0;i<3;i++)sum=sum+itprice[i];return sum;}void item::displayit(void){cout<<"\ncode price\n";

for(int i=0;i<3;i++)cout<<"\n"<<itcode[i]<<"\n"<<itprice[i];}void main(){item order;order.ini();float total,biggest;int ch=0;for(;;){cout<<"\n"<<"1.display largest price"<<"\n"<<"2.display sum of prices"<<"\n"<<"display item list"<<"\n";cout<<"enter your choice"<<"\n";cin>>ch;if(ch==0)break;switch(ch){case 1:biggest=order.largest();cout<<"the largest price is"<<biggest<<"\n";;break;case 2:total=order.sum();cout<<"the sum of prices"<<total<<"\n";break;case 3:order.displayit();break;default:cout<<"\nwrong choice!!\n";break;}}}

2. Write a c++ program using class to display of cricket overs.

#include<iostream.h>#include<conio.h>#include<stdio.h>class player{ private:

int over[6]; int score; int wic; public: player(int A,int C) { score=A; wic=C; }

void ini(); int display(int); int wickets();

};int player::display(int c){cout<<"over-"<<c<<"\n";cout<<"This over:"<<"\n";char bowler[20];cout<<"enter bowler name";gets(bowler);cout<<"bowler:"<<bowler;for(int i=0;i<6;i++){if(over[i]<=6){cout<<over[i]<<"\t";score=score+over[i];}elsecout<<"W"<<"\t";

}cout<<"total score-\n"<<score;return score;}

void player::ini(){

cout<<"enter runs";for(int i=0;i<6;i++)cin>>over[i];}int player:: wickets()

{ for(int i=0;i<6;i++) { if(over[i]>6)

wic++; } cout<<"Wickets-"<<wic; return wic; }

void main(){cout<<"***************CRICKET LEAGUE******************\n";int a,x=0,y=0,scor=0,wicc=0;

for(a=1;a<=3;a++){x=scor;y=wicc;player s1(x,y);s1.ini();clrscr(); scor=s1.display(a); wicc=s1.wickets();cout<<"\n";

}}

3.Write a c++ program using classes to check whether a file can be created in the available space.

#include<iostream.h>#include<conio.h>#include<stdio.h>class myfolder{private:char file[2][10];long availspace;long usedspace;int c;public:void fileent();long retavailsp();void showfile();myfolder(long A,int X){availspace=A ;c=X;}};void myfolder::fileent(){cout<<"enter name of files\n";for(int i=0;i<2;i++){cout<<"enter file size\n";cin>>usedspace;if(usedspace<=availspace){cout<<"Document"<<(i+1)<<":";gets(file[i]);availspace=availspace-usedspace;c=1;usedspace=0;}else{cout<<"Not enough space available\n";break;}}}void myfolder::showfile(){if(c!=0){for(int i=0;i<2;i++)

cout<<"Directory contains:\n"<<file[i]<<"\n";}elsecout<<"No files in directory";}void main(){int s=0,x=0;int ch;long a;cout<<"enter no of bytes";cin>>s;a=s*1024;myfolder d(a,x);cout<<"\nMAIN MENU\n";cout<<"1.FILE ENTRY\n"<<"2.SHOW ALL FILES\n";cout<<"enter your choice\n";cin>>ch;switch(ch){case 1:d.fileent();break;case 2:d.showfile();break;default:cout<<"\nwrong choice";break;}}

4.Write a c++ program using class to check and fine the bank accounts.

#include<iostream.h>#include<conio.h>class account{int accno[2];long balance[2];public:void ini();void fine();};void account::ini(){cout<<"\nEnter account details";for(int i=0;i<2;i++){cout<<"\nenter account no";cin>>accno[i];cout<<"\nenter balance";cin>>balance[i];}}void account::fine(){int a=0;for(int i=0;i<2;i++){if(balance[i]<=100){balance[i]-=50;a++;}}for(i=0;i<2;i++){cout<<accno[i]<<"\t"<<"\t";cout<<balance[i]<<"\n";}cout<<a<<"accounts fined";}void main(){int b;account s;for(b=1;b<=2;b++){s.ini();

cout<<"\nNEW ACCOUNT DETAILS\n";cout<<"ACCOUNT NO"<<"\t"<<"BALANCE"<<"\n";s.fine();}}

5. Write a c++ program using class to generate Fibonacci series.

#include<iostream.h>#include<conio.h>class fibo{private:int i,f,s,t;public:void genefibo();fibo(int a,int b){f=a;s=b;}};void fibo::genefibo(){cout<<f<<" "<<s;for(i=0;i<10;i++){t=f+s;f=s;s=t;cout<<t<<" ";}}void main(){clrscr();int m,n;cout<<"enter initial 2 terms of fibonacci series\n";cin>>m;cin>>n;fibo s1(m,n);s1.genefibo();}