#include<iostream>
using namespace std;
class student
   {
   public:
   int rollno;
   };
int main()
   {
   student a;
   student b;
   a.rollno=101;
   b.rollno=102;
   cout<<"Roll no of A is"<< a.rollno;
   cout<<"Roll no of B is"<<  b.rollno;
return 0;
   }
    

 
#include<iostream>
using namespace std;
class student
 {
   private:
   int rollno;
   public:
   void readdata(int rollno)
   {
   rollno=rn;
   }
   void show()
   {
   cout<< rollno;
   }
 };
int main()
   {
   student a, b;
   a.readdata(101);
   b.readdata(102);
   cout<<"Roll no of A is";
   a.show();
   cout<<"Roll no of B is";
   b.show();
return 0;
   }
    

 
#include<iostream>
using namespace std;
class Student 
  {  
   public:  
      int id;  
      string name;   
};  
int main() 
{  
    Student s1; 
    s1.id = 201;    
    s1.name = "jpwebdevelopers";   
    cout<< s1.id<< endl;  
    cout<< s1.name<< endl;  
    return 0;  
}
    

 
#include<iostream>
using namespace std;
class employee
 {
   int empid,salary;
   public:
   void display()
   {
   empid=101;
   salary=10000;
   cout<<"employee id is"<< empid << endl;
   cout<<"employee salary is"<<  salary;
   }
 };
 int main()
 {
   employee e;
   e.display();
   return 0;
 }
    

 
#include<iostream>
using namespace std;
class employee
 {
   int empid,salary;
   public:
   void display(); 
 };
 void employee::display()
 {
  empid=101;
   salary=10000;
   cout<<"employee id is"<< empid << endl;
   cout<<"employee salary is"<< salary ;
 }
 int main()
 {
   employee e;
   e.display();
   return 0;
 }
    

 
#include<iostream>
using namespace std;
inline int  addnum(int x,int y)
{
   return (x+y);
}
int main()
{
   int a=5;
   int b=10;
   cout<< addnum(a,b);
   return 0;
}
    

 
#include<iostream>
using namespace std;
class employee
 {
   static int empid,salary;
   public:
   static void display()
   {
     cout<<"employee id is"<< empid << endl;
   cout<<"employee salary is"<<  b.rollno;
   }
 void employee::display()
 {
  empid=101;
   salary=10000;
   cout<<"employee id is"<< empid << endl;
   cout<<"employee salary is"<< salary;
 }
  };
 int employee :: empid=101;
 int employee :: salary=2000;

 int main()
 {
   employee e;
   cout<<"Printing through object name";
   e.display();
   cout<<"Printing through class name";             
   employee ::display();
   return 0;
 }
    

 
#include<iostream>
using namespace std;
class add
   {
   int a, b;
   public:
   void input()
     {
     cout<<"Enter the value of a and b";
     cin>>a>>b;
     }
   friend void sum(add obj);
      };
   void sum(add obj)
      {
      int c;
      c=obj.a+obj.b;
      cout<<"Sum is = "<< c;
      }
  int main()
  {
      add aobj;
      aobj.input();
      sum(aobj);
      return 0;
  }