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Object-Oriented Programming BSC.CSIT 2078

May 30, 2022

 

Write a program according to the specification given below:

  •  Create a class Account with data members acc no, balance, and min_balance(static)
  • Include methods for reading and displaying values of objects
  • Define static member function to display min_balance
  • Create array of objects to store data of 5 accounts and read and display values of each object


#include <iostream>
using namespace std;

class Account{
    int acc_no;
    float balance;
    static int min_balance;
    public:
    void read(){
        cout<<"Enter account no : ";
        cin>>acc_no;
        cout<<"Enter balance : ";
        cin>>balance;
    }
    static void display_min_balance(){
        cout<<"Minimum balance is "
        <<min_balance<<endl;
    }
    static void read_min_balance(){
        cout<<" Enter Minimum balance = ";
        cin>>min_balance;
    }
    void display(){
        cout<<"Account no = "<<acc_no<<endl;
        cout<<"Balance = "<<balance<<endl;
    }
};
int Account::min_balance;

int main(){
    Account a[5];

    //calling static function
    Account::read_min_balance();
    // OR , a[0].read_min_balance();  

    //reading data
    for(int i=0;i<5;i++){
        a[i].read();
    }

    //displaying data
    for(int i=0;i<5;i++){
        a[i].display();
        a[i].display_min_balance();
    }
    return 0;
}

OUTPUT:
 Enter Minimum balance = 5
Enter account no : 5555
Enter balance : 55
Enter account no : 5656
Enter balance : 36
Enter account no : 11
Enter balance : 256
Enter account no : 7979
Enter balance : 223
Enter account no : 46565
Enter balance : 2222
Account no = 5555
Balance = 55
Minimum balance is 5
Account no = 5656
Balance = 36
Minimum balance is 5
Account no = 11
Balance = 256
Minimum balance is 5
Account no = 7979
Balance = 223
Minimum balance is 5
Account no = 46565
Balance = 2222
Minimum balance is 5


When class templates are useful? How can you define a class that can implement stack with integer as well as sack of strings? Illustrate with example. ( C++ )

Class Templates are useful because of the following reasons:
  • No code repetition
  • Less chance of errors and bugs
  • Object code gets reduced and hence the execution speed is enhanced

#include <iostream>
using namespace std;
const int MAX = 5;
template <class T>
class stack
{
    int top = 0;
    T st[MAX];

public:
    bool is_full()
    {
        if (top == MAX)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    bool is_empty()
    {
        if (top == 0)
        {
            return true;
        }
        return false;
    }
    void push(T k)
    {
        if (!is_full())
        {
            st[top] = k;
            top++;
            cout<<"Pushed "<< k <<" to the stack "<<endl;
        }
        else
        {
            cout<<"Stack full cant push anymore."<<endl;
        }
    }
    void pop()
    {
        if (!is_empty())
        {
            cout<<st[top-1]<<"popped from stack"<<endl;
            top--;
        }
        else
        {
            cout<<"Cannot pop . already at the end"<<endl;
        }
    }
};

int main()
{
    stack<int> s;
    s.push(23);
    s.pop();
    s.pop();
    s.push(47);
    s.push(50);
    s.push(9);
    s.push(5);
    s.pop();
    s.push(11);
    s.push(6);
    s.push(6);

    stack<string> s1;
    string name = "abid";
    s1.push(name);
    s1.pop();
    return 0;
}

OUTPUT:

Pushed 23 to the stack
23 popped from stack
Cannot pop . already at the end
Pushed 47 to the stack
Pushed 50 to the stack
Pushed 9 to the stack
Pushed 5 to the stack
5 popped from stack
Pushed 11 to the stack
Pushed 6 to the stack
Stack full cant push anymore.
Pushed abid to the stack
abid popped from stack



Abid Adhikari

Posted by Abid Adhikari