memory allocation and using arrays in classes

 //the statement that jab class likhte h to bilkul bi memory nhi khai jati and

//objects bnane pe hi memory allocate hoti hai is not completlety true (partially true)
/*jab hum class bnate hai to kuch memory (for example functions ki) sare functions ke liye same allocate ki
jati hai
otherwise har object ke liye alg memory allot hogi*/


#include<iostream>
using namespace std;


class shop {
    int itemId[100];
    int itemPrice[100];
    int counter;

    public:

    void initCounter(void) { counter = 0; }
    void setPrice(void);
    void displayPrice(void);

};

void shop :: setPrice(void){
    cout<<"enter id of your item no"<< counter + 1 <<endl;
    cin>>itemId[counter];
    cout<<"enter price of your item"<<endl;
    cin>>itemPrice[counter];
    counter++;
}

void shop :: displayPrice(void){

    for (int i=0; i<=counter; i++){
        cout<<"the price of item with item id"<<itemId[i]<<" is "<<itemPrice[i]<<endl;
    }
}
int main(){
    shop dukaan;
    dukaan.initCounter();
    dukaan.setPrice();
    dukaan.setPrice();
    dukaan.setPrice();
    dukaan.displayPrice();
    return 0;
}

Comments

Post a Comment

Popular posts from this blog

Function Overloading in C++

  #include <iostream> using namespace std ; int sum ( int a , int b ){     cout << "by function1 is " ;     return a + b; } int sum ( int a , int b , int c ){     cout << "by function2 is " ;     return a + b + c; } int volume ( int a ){     return a * a * a; } int volume ( int r , int h ){     return 3.14 * r * r * h; } int volume ( int l , int b , int h ){     return l * b * h; } int main (){     cout << "the sum of 5 and 7 " << sum ( 5 , 7 ) << endl;     cout << "the sum of 5, 7 and 57 " << sum ( 5 , 7 , 57 ) << endl;     cout << "the volume of cube of side length 5 is " << volume ( 5 ) << endl;     cout << "the volume of cylinder of radius 5 and height 7 is " << volume ( 5 , 7 ) << endl;     cout << "the volume of cuboid of length 5, bredth 7...
Read more

oops recall, basic operations and nesting of member functions

  /*OOPS---> Classes and Objects C++--> initially called as C with classes by stroustroup Class--> extension of structures in C Structures had limitations     - members are public     - a function cannot be created inside structure     - no methods Classes --> Structures + more Classes --> can have methods and properties Classes --> can make few members as private and few as public Structues in c++ are typedef (mtlb typedef na lgakr bi structures ke varibales define kre to vo hojaenge) you can declare objects along with class declaration like this:     class Employee {           class definition           } krishna, shalini; harry.salary = 9 makes no sense if salary is private */ /************NESTING OF MEMBER FUNCTIONS******** */ #include <iostream> using namespace std ; // int main(){     //     binary b; //     b.read(); //   ...
Read more

OBJECT ORIENTED PROGRAMMING, classes public and private access modifiers (syntax)

/**************OBJECT ORIENTED PROGRAMMING (oops)************ */ /*why oops??? #c++ language was designed with the main intention of adding object oriented features to C language #as the size of program increases readability, maintaibility and bug free nature of the program decreases. #this was tha main problem with langage C #as a result the possiblity of not addressing the problem in an effective way increases #also, as data was almost neglected, data security was easily compromised #using classes solves this problem by modelling program as a real world scenario PROCEDURE ORIENTED PROGRAMMING (POP) (jo abi tak kr rahe the) #consists of writing a sequence of instructions for the computer to follow #main focus is one functions and not on the flow of data #functions can either use local or global data #data moves openly from function to function OBJECT ORIENTED PROGRAMMING #Works on the basis of CLASSES and OBJECTS #A class is a template to create objects #treats data as a critical elem...
Read more