Quiz 2 Java GUI

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

The package used for using graphical classes is

• awt

• util

• lang

The basic container for java graphical programs is

• Panel

• Button

• Frame

How would you change the text of a label to the text contained by an integer named num;

• label.setText(num);

• label.updateText(num);

• label.setTest("num");

• label.setText(num+ "");

What object type handles Java's layouts?

• Layout Manager

• Layout Scheduler

• Layout Operator

• Layout Director

Which of one of the following package does not contain GUI components?

• java.applet

• java.awt

• javax.swing

• java.io

How is a GUI component (such as a button) placed into a JFrame?

• insert( Component c )

• add( Component c)

• draw( Component c )

• put( Component c )

Which of the following is not one of the BorderLayout index?

• BorderLayout.CENTER

• BorderLayout.EAST

• BorderLayout.SOUTHEAST

• BorderLayout.NORTH

Window created in a java program can be made to show using the method

• display()

• setVisible()

• focus()

Which of the following components is used to create a drop-down list in Java GUI?

• JComboBox

• JList

• JTextField

• JCheckBox