CIS 22B Notes

Put your name, the compiler used, and Lab Exercise #9 in a comment at the top of your program. Email your source code. This lab exercise is due at the beginning of the next lecture.

Complete the Rectangle class.

class Rectangle
{
int length, width;
public:
...
};

Overload the +=, !, and << operators. The += operator should add the int argument to both the length and width members. The ! operator should return the area of the Rectangle. The << operator should be written as a friend of the Rectangle class.

Use this main() as a test.

int main()
{
    Rectangle R(6,4);
    cout << R << " has area " << !R << endl;
    R += 5;
    cout << R << " has area " << !R << endl;
}

It should produce the output:

Rectangle: length=6 width=4 has area 24
Rectangle: length=11 width=9 has area 99