First, you choose a shape. The available shapes are circles, rectangles, and triangles. The functions include perimeter, area, etc.
First, enter the shape number (1. Circle; 2. Rectangle; 3. Triangle). Then choose a function. Then enter the information about the shape as directed.
How It Works
First, there are four classes (3 classes for the shapes, and a tester class). It uses if statements to find the methods that are inputted from the keyboard.