Java: Swing Frames Quiz! Trivia
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- 1.In Java, what do you call an area on the screen that has nice borders and various buttons along the top border?
- A.
A window.
- B.
A screen.
- C.
A box.
- D.
A frame.
- 2.What is the name of the Swing class that is used for frames?
- A.
Window
- B.
Frame
- C.
JFrame
- D.
SwingFrame
- 3.Which of the following sets the frame to 300 pixels wide by 200 high?
- A.
Frm.setVisible( 300, 200 );
- B.
Frm.paint( 300, 200 );
- C.
Frm.setSize( 200, 300 );
- D.
Frm.setSize( 300, 200 );
- 4.The size of a frame on the screen is measured in:
- A.
Inches
- B.
Nits
- C.
Dots
- D.
Pixels
- 5.What is a container object in GUI programming?
- A.
A container is another name for an array or vector.
- B.
A container is any class that is made up of other classes.
- C.
A container is a primitive variable that contains the actual data.
- D.
A container is an object like a frame that has other GUI components placed inside of it.
- 6.Fill in the blanks so that this program displays a JFrame: import java.awt.*; public class microGUI { public static void main ( String args[] ) { JFrame frm = new ___________(); frm.___________( 150, 100 ); frm.___________( true ); } }
- A.
Form, setVisible, setOn
- B.
JFrame, setSize, setVisible
- C.
Frame, setVisible, setSize
- D.
Window, setSize, paint
- 7.JFrame myFrame = new JFrame (); Any command (such as the one listed above) which creates a new object of a specific class (in this case a new JFrame object called myFrame) is generally called a ...
- A.
Constructor
- B.
Layout manager
- C.
Parameter
- D.
GUI
- 8.When you create a JFrame object it is not automatically displayed.
- A.
True
- B.
False
- 9.How do you import all the classes in the AWT and Swing packages?
- A.
Import awt.* import swing.*
- B.
Import java.awt import javax.swing
- C.
Import java.awtx.* import java.swingx.*
- D.
Import java.awt.* import javax.swing.*
- 10.Upon clicking the X (close) button on a window, it looks like you have "killed" the program when in reality it keeps on running, but you see no frame. This happened because you forgot to use the setDefaultCloseOperation( ) method so by default it used ...
- A.
JFrame.EXIT_ON_CLOSE
- B.
JFrame.HIDE_ON_CLOSE
- C.
JFrame.DISPOSE_ON_CLOSE
- D.
JFrame.DO_NOTHING_ON_CLOSE
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