Example of static data members (OOP)

 # include <iostream>
 using namespace std;

////////  Example of static data members  /////////

//int Static::x=100;        if u declared static data member before class it will give you error

class Static
{
      //static int x;       u can also write static data member in private section
      public:
      static int x;       // static data member
             void show()
             {
                  cout<<x++<<endl;
             }          
};
int Static::x=100;
int main()
{
    Static s[5];
    for(int i=0; i<5;i++)
    {
            s[i].show();
    }
    system("pause");
}

Implemention of Lists Slides (DS)

Write a program to make the class of a student to enter name and roll no using constructor.

#include<iostream>
using namespace std;
class student
{
private:
char name[20];
int roll;
public:
student(char b[20] , int s)
{
name[20]=b[20];
roll=s;
}
int set()
{
cout<<“enter the name”<<endl;
gets(name);
cout<<“enter the roll”<<endl;
cin>>roll;
}
int get()
{
cout<<“name is: “<<name<<endl;
cout<<“roll is: “<<roll<<endl;
}
};
int main()
{
student std(“shahroz”,49);
std.set();
std.get();
system(“pause”);
}
 

OOP PROGRAM

#include<iostream>

using namespace std;

class Time{

      private:

      int Hours, Minutes, Seconds;

public:

      Time();

      void setHours(int Hours_value);

      int getHours();

      void setMinutes(int Minutes_value);

      int getMinutes();

      void setSeconds(int Seconds_value);

      int getSeconds();

      void UniversalPrint();

};

Time::Time()

{

                  Hours=0;

                  Minutes=0;

                  Seconds=0;

}

void Time::setHours(int Hours_value)

{

     if(0>=Hours_value||Hours_value>=24)

     {

                         cout<<"Wrong Input"<<endl;

                         Hours=0;

     }

     else

     {    

                   Hours=Hours_value;

     }

}

int Time::getHours()

{

                return Hours;

}

void Time::setMinutes(int Minutes_value)

{

     if(0>=Minutes_value||Minutes_value>60)

     {

                         cout<<"Wrong Input"<<endl;

                         Minutes=0;

     }

     else

     {    

                   Minutes=Minutes_value;

     }                      

}

int Time::getMinutes()

{

    return Minutes;

}

void Time::setSeconds(int Seconds_value)

{

     if(0>=Seconds_value||Seconds_value>=60)

     {

                         cout<<"Wrong Input"<<endl;

                         Seconds=0;

     }

     else

     {    

                   Seconds=Seconds_value;

     }

}

int Time::getSeconds()

{

    return Seconds;

}

void Time::UniversalPrint()

{

        cout<<getHours()<<":"<<getMinutes()<<":"<<getSeconds();

}

int main()

{

    Time my;

    int Hours_value, Minutes_value, Seconds_value;

    cout<<"Enter Hours: "<<endl;

    cin>>Hours_value;

    my.setHours(Hours_value);

   

   

    cout<<"Enter Minutes: "<<endl;

    cin>>Minutes_value;

    my.setMinutes(Minutes_value);

   

    cout<<"Enter Seconds: "<<endl;

    cin>>Seconds_value;

    my.setSeconds(Seconds_value);

   

   

   

    my.UniversalPrint();

   

    system("pause");

   

     

}

calculater Programe in C

·         #include <stdio.h>

·         #include <conio.h>

·         int main ()

·         {

·          

·          char c;

·          int a, b, res,d;

·         printf("Select one of era-thematic operation "

"to perfume the following operations: \n+\n-\n*\n/\"

"nEnter you's choice: ");

scanf("%c",&c);

switch(c)

{

case '+' :

 printf("Enter 1st Number:");

 scanf("%d",&a);

 printf("\nEnter 2nd Number:");

 scanf("%d",&b);

 res=a+b;

 printf("%d + %d= %d",a,b,res);

break;

 case '-':

 printf("Enter 1st Number:");

    scanf("%d",&a);

 printf("\nEnter 2nd Number:");

 scanf("%d",&b);

 res=a-b;

 printf("%d - %d= %d",a,b,res);

break;

case '*':

 printf("Enter 1st Number:");

 scanf("%d",&a);

 printf("\nEnter 2nd Number:");

 scanf("%d",&b);

 res=a*b;

 printf("%d * %d= %d",a,b,res);

break;

case '/':

 printf("Enter 1st Number:");

 scanf("%d",&a);

 printf("\nEnter 2nd Number:");

 scanf("%d",&b);

 res=a/b;

 printf("%d / %d= %d",a,b,res);

break;

default:

  printf("Invalid Entry");

}

getch();

return 0;

}