Step 1 - DEFINE 1) Create this class first: Square two variables: length, width five function: getWidth, setWidth, getLength, setLength, getArea 2) Write the class second: Cube inheritance the square class code one variable: height three functions: getHeight, getHeight, get Volume Step 2 - DECLARE 3 different instances of a cube. Step 3 - USE the three instances of the cube. set the length, width and height of each get volume of each cube