Swing II - Java - page 976

The Insets Class
Objects of the class Insets are used to specify the size of the margin in a button or menu
item. The Insets class is in the package java.awt . The parameters in the following con-
structors are in pixels.
Constructor
public Insets( int top, int left, int bottom, int right)
EXAMPLES
aButton.setMargin( new Insets(10, 20, 10, 20));
setIcon and setText
The method setIcon can be used to add an icon to a JButton , JMenuItem , or JLabel . The
argument to setIcon must be an ImageIcon object.
SYNTAX
Component .setIcon( ImageIcon_Object );
The Component can be a JButton , JMenuItem , or JLabel .
EXAMPLE
JLabel helloLabel = new JLabel("Hello");
ImageIcon dukeIcon = new ImageIcon("duke_waving.gif");
helloLabel.setIcon(dukeIcon);
The method setText can be used to add text to a JButton , JMenuItem , or JLabel .
SYNTAX
Component .setText( Text_String );
The Component can be a JButton , JMenuItem , or JLabel .
EXAMPLE
ImageIcon dukeIcon = new ImageIcon("duke_waving.gif");
JLabel helloLabel = new JLabel(dukeIcon);
helloLabel.setText("Hello");
The two examples are equivalent.