I'm learning Java by writing a Mandelbrot program. I can draw the image, then use the mouse to choose an area to magnify. Works great, except... When I choose the area to magnify (mouse down, move ...

Consider a simple problem domain for which we need to calculate the area of various shapes, specifically squares and rectangles. The creation of a Square class that inherits from a Rectangle class, ..

To calculate the area of a rectangle in Excel, you need to multiply the length with height. That being said, use this formula: =<cell with length>*<cell with height> .