7.Write a program to read a list containing item name, item code and cost interactively and produce a three-column output as shown below. NAME CODE COST Turbo C++ 1001 250.95 C Primer 905 95.70 ------------- ------- ---------- ------------- ------- ---------- Note that the name and code are left-justified and the cost is right-justified with a precision of two digits. Trailing zeros are shown.

 //Program - 3 -overload Unary operator ~ (bitwise one's complement) using friend function

#include <iostream.h>

#include <conio.h>

class Test

{

int a, b;

public :

Test()

{

cout << " Enter Value a = ";

cin >> a;

cout << " Enter value b = ";

cin >> b;

}

void show()

{

cout << endl << "A = " << a;

cout << endl << "B = " << b;

}

friend void operator~(Test &);

};

void operator~(Test &ref)

{

ref.a = ~ref.a;

ref.b = ~ref.b;

}

void main()

{

clrscr();

Test obj;

obj.show();

~obj;

obj.show();

getch();

}