Java™ How to Program, Seventh Edition

Exercises

21.3	Describe how to make an animation “browser friendly.”
21.4	Describe the Java methods for playing and manipulating audio clips.
21.5	Explain how image maps are used. List several examples of their use.
21.6	(Randomly Erasing an Image) Suppose an image is displayed in a rectangular screen area. One way to erase the image is simply to set every pixel to the same color immediately, but this is a dull visual effect. Write a Java program that displays an image and then erases it by using randomnumber generation to select individual pixels to erase. After most of the image is erased, erase all the remaining pixels at once. You can draw individual pixels as a line that starts and ends at the same coordinates. You might try several variants of ...