Introduction to Parameters and Objects - Building Java Programs: A Back to Basics Approach - page 224

4. Write a modified version of the Projectile case study program from Chapter 3 that draws a graph of the projectile's
flight onto a DrawingPanel of size 420

220. For example, the panel shown in Figure 3G.31 draws a projectile with
an initial velocity of 30 meters per second, an angle of 50 degrees, and 10 steps.

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Figure 3G.31

5. Write a program that draws the image shown in Figure 3G.32 onto a DrawingPanel of size 650 400. The image

represents a famous optical illusion called the “Cafe Wall,” in which a series of straight squares appears to be slanted.

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Figure 3G.32