The Entrance<\/h3>\n\n\n\n
Please be sure to complete Lab 2 and Programming Challenge 1 before starting this assignment. <\/p>\n\n\n\n
Problem 1: Fun Squares!<\/h3>\n\n\n\n
In the context of the NPW, write a program called FunSquares within the npw package to paint the colorful and fun image depicted below.<\/p>\n\n\n
![\"\"](\"https:\/\/danielschlegel.org\/wp\/wp-content\/uploads\/2022\/09\/image-993x1024.png\")
<\/figure>\n<\/div>\n\n\nConstraints:<\/p>\n\n\n\n
- Use the technique of modifying an existing program that does something similar. Do so by:
(a) Creating a new Java Main Class file for the program, naming it FunSquares and placing it in the npw package.
(b) Replacing the entire contents of the FunSquares<\/tt> file with the entire contents of the BlueDot<\/tt> program.
(c) Changing all occurrences of BlueDot<\/tt> to FunSquares<\/tt>.<\/li>- Place the following code, without alteration, in the paintTheImage<\/tt> method.
SPainter painter = new SPainter(\"Fun Squares\",600,600);\nSSquare square = new SSquare(150);\npaintYellowSquare(painter,square);\npaintRedSquares(painter,square);\npaintBlueSquares(painter,square);\npaintGraySquares(painter,square); <\/pre> Then:
(a) Use the features of IntelliJ to add the necessary import statements.
(b) Use the light bulbs to create a stub for each of the unrefined methods. (You should create 4 stubs.)<\/li>- One at a time, complete the definitions of the methods, proceeding as follows:
(a) Run the program, and see that not much happens.
(b) Refine the paintYellowSquare<\/tt> method, being sure to make it invariant with respect to both the location and heading of the painter<\/strong>, run the program, enjoy the yellow square.
(c) Refine the paintRedSquares<\/tt> method, being sure to make it invariant with respect to both the location and heading of the painter<\/strong>, run the program, enjoy the yellow square and red squares.
(d) Refine the paintBlueSquares<\/tt> method, being sure to make it invariant with respect to both the location and heading of the painter<\/strong>, run the program, enjoy the yellow square, red squares and blue squares.
(e) Refine the paintGraySquares<\/tt> method, run the program, and enjoy looking at the fun squares! <\/li><\/ol>\n\n\n\nProblem 2: Dots <\/h3>\n\n\n\n
In the context of the NPW, write a program called Dots<\/tt> within the npw<\/tt> package to paint an image consisting exclusively of dots (painted circles) subject to the following constraints:<\/p>\n\n\n\n
- it contains exactly 11 painted (filled in) circles<\/li>
- it contains circles of exactly 4 different sizes<\/li>
- it contains circles of exactly 3 different colors<\/li>
- none of the circles touch<\/li>
- the image is symmetric about the Y-axis (i.e., the left and right sides of the image are a mirror image of each other)<\/li>
- not all of the circles touch the Y-axis<\/li><\/ol>\n\n\n\n
Problem 3: Musical Scene<\/h3>\n\n\n\n
Write a program called MusicalScene<\/tt> within the mmw<\/tt> package to play a melody composed exclusively of the sequences available in MMW which represent locations and locomotion, subject to the following additional constraints:<\/p>\n\n\n\n
- Place the following code, without alteration, in the paintTheImage<\/tt> method.