GUI Quiz

A JFrame is a descendant of each of the following classes except the ________class.

• Component

• Jar

• Container

• Window

The statement JFrame myFrame = new JFrame(); creates a JFrame that is _______.

• invisible and has no title

• invisible and has a title

• visible and has no title

• visible and has a title

When a user closes a JFrame, the default behavior is for ______.

• the JFrame to close and the application to keep running

• the JFrame to be hidden and the application to keep running

• the JFrame to close and the application to exit

• nothing to happen

Suppose that you create an application in which you instantiate a JFrame named frame1 and a JLabel named label1. Which of the following statements within the application adds label1 to frame1?

• label1.add(frame1);

• frame1.add(label1);

• this.add(label1);

• two of the above

A JFrame contains a JButton named button1 that should execute an actionPerformed() method when clicked. Which statement is needed in the JFrame class?

• addActionListener(this);

• addActionListener(button1);

• button1.addActionListener(this);

• this.addActionListener(button1);

Events in Java are objects that are created by Event Sources (such as JButtons, JPanels, and other Components).

• True

• False

The three software parts of a GUI program are:

• Windows, Buttons, Mice

• GUI Components, Graphics, Code

• GUI Components, Event Listeners, Application Code

• Frames, Code, Events

Fill in the blanks so that this program displays a Frame:

• Form, setVisible, setOn

• Frame, setSize, setVisible

• Frame, setVisible, setSize

• Window, setSize, paint

Which is the container that doesn't contain title bar and MenuBars but it can have other components like button, textfield etc?

• Window

• Frame

• Panel

• Container

The Java Foundation Classes (JFC) is a set of GUI components which simplify the development of desktop applications.

• True

• False