Q. Print a statement on screen ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
void main()
{ clrscr();
cout<<"Hello Shashank";
getch();
}

Q. Perimeter of a square using constant function ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{ int pr,a;
public:
inline void B()
{ cout<<"Enter side=";
 cin>>a;
}
void C() const
{ int p;
 //pr=4*a;
 p=4*a;
 cout<<"Perimeter of square="<<p;
}
};
void main()
{ clrscr();
A obj;
obj.B();
obj.C();
getch();
}

Q. Print a Sum of first n even number ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{ int a,n,i;
public:
void B()
{ cout<<"Enter n:";
 cin>>n;
}
void C();
};
void A::C()
{       a=0;
cout<<"\nSum of first "<<n<<" even no. is= ";
for(i=1;i<=n;i++)
a=a+i*2;
cout<<a;
}
void main()
{ clrscr();
A obj;
obj.B();
obj.C();
getch();
}

Q. Perimeter of a rectangle by passing argument ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{ int l,b,p;
public:
void B( int x,int y)
{ l=x;
 b=y;
}
void C();
};
void A::C()
{ p=2*(l+b);
cout<<"Perimeter of Rectangle="<<p;
}
void main()
{ clrscr();
A obj;
obj.B(2,4);
obj.C();
getch();
}

Q. Shopping ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{       char p[25],i[25];
int s;
public:
void B()
{ cout<<"Enter your name:";
 cin>>p;
}
void E()
{ cout<<"Name: "<<p<<"\n";
}
void C()
{ cout<<"Enter your product name:";
 cin>>i;
 cout<<"Enter your product id:";
 cin>>s;
}
void F()
{ cout<<"Product name: "<<i<<"\n";
 cout<<"product id: "<<s<<"\n";
}
};
class D: public A
{       int a;
public:
void G()
{ cout<<"Enter product price:";
 cin>>a;
}
void H()
{ cout<<"Product price: "<<a<<"\n";
}
};
void main()
{       //int n;
clrscr();
D obj;
obj.B();
obj.C();
obj.G();
obj.E();
obj.F();
obj.H();
getch();
}

Q. Area of tringle & cirlce ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{ float a1,a2,l,b,r;
public:
void B();
void C();
};
inline void A::B()
{       cout<<"Enter r:";
cin>>r;
a1=3.14*r*r;
cout<<"The area of circlr is "<<a1;
}
inline void A::C()
{       cout<<"Enter l=";
cin>>l;
cout<<"Enter b=";
cin>>b;
a2=l*b;
cout<<"The area of rectangle "<<a2;
}
void main()
{       int q;
clrscr();
cout<<"Press 1 for area of circle & Press 2 for area of rectangle\n";
cin>>q;
A obj;
switch(q)
{ case 1: obj.B();
 break;
 case 2: obj.C();
 break;
 default: cout<<"Wrong input";
  break;
}
getch();
}

Q. Average of two number ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
class A
{ float a,b,t;
public:
A()
{ a=9;
 b=10;
}
A(float x,float y)
{ a=x;
 b=y;
}
inline void B()
{ t=(a+b)/2;
 cout<<"The average of two number is "<<t;
 cout<<"\n";
}
};
void main()
{ clrscr();
A obj1,obj2(3,4);
obj1.B();
obj2.B();
getch();
}