Submit one zipped file named by "Your Name", containing two folders (directories) corresponds to Milestone 2 and Milestone 4 (see below). Each of these two folders should include your java source code corresponding to that Milestone and a few representative snapshots showing the drawing resized in different ways. In the following drawings, the number of line segments in each "fan", also called NUM_STEPS below, is a parameter that the user specifies through JOptionPane. showInputDialog() and your program should validate and insist that the user specifies NUM_STEPS to be between 2 and 50