Swing I - Java - page 932

Adding a Menu Bar to a Frame
There are two different ways to add a menu bar to a JFrame . You can use the method add to
add the menu bar to a JFrame (or to any other container). Another common way of adding a
menu bar to a JFrame is to use the method setJMenuBar as follows:
SYNTAX
setJMenuBar( JMenu_Bar_Name );
EXAMPLE
setJMenuBar(bar);
Display 17.15 Some Methods in the Class AbstractButton (part 1 of 2)
The abstract class AbstractButton is in the javax.swing package.
All of these methods are inherited by both of the classes JButton and JMenuItem .
public void setBackground(Color theColor)
Sets the background color of this component.
public void addActionListener(ActionListener listener)
Adds an ActionListener .
public void removeActionListener(ActionListener listener)
Removes an ActionListener .
public void setActionCommand(String actionCommand)
Sets the action command.
public String getActionCommand()
Returns the action command for this component.
public void setText(String text)
Makes text the only text on this component.
public String getText()
Returns the text written on the component, such as the text on a button or the string for a menu item.
public void setPreferredSize(Dimension preferredSize)
Sets the preferred size of the button or label. Note that this is only a suggestion to the layout man-
ager. The layout manager is not required to use the preferred size. The following special case will
work for most simple situations. The int values give the width and height in pixels.
public void setPreferredSize(
new Dimension( int width, int height))