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Quiz on Chapter 13

This page contains questions on Chapter 13 of Introduction to Programming Using Java. You should be able to answer these questions after studying that chapter. Sample answers to these questions can be found here.

Question 1:

Describe the object that is created by the following statement, and give an example of how it might be used in a program:

BufferedImage OSC = new BufferedImage(32,32,BufferedImage.TYPE_INT_RGB);
Question 2:

Many programs depend on resource files. What is meant by a resource in this sense? Give an example.

Question 3:

What is the FontMetrics class used for?

Question 4:

If a Color, c, is created as c = new Color(0,0,255,125), what is the effect of drawing with this color?

Question 5:

What is antialiasing?

Question 6:

How is the ButtonGroup class used?

Question 7:

What does the acronym MVC stand for, and how does it apply to the JTable class?

Question 8:

Describe the picture that is produced by the following paintComponent() method:

public void paintComponent(Graphics g) {
   Graphics2D g2 = (Graphics2D)g;
   g2.translate( getWidth()/2, getHeight()/2 );
   g2.rotate( 30 * Math.PI / 180 );
Question 9:

What is meant by Internationalization of a program?

Question 10:

Suppose that the class that you are writing has an instance method doOpen() (with no parameters) that is meant to be used to open a file selected by the user. Write a code segment that creates an Action that represents the action of opening a file. Then show how to create a button and a menu item from that action.

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