Core Swing Components - The Definitive Guide to Java Swing - page 86

Creating a JLabel
There are six constructors for JLabel :

public JLabel()
JLabel label = new JLabel();

public JLabel(Icon image)
Icon icon = new ImageIcon("dog.jpg");
JLabel label = new JLabel(icon);

public JLabel(Icon image, int horizontalAlignment)
Icon icon = new ImageIcon("dog.jpg");
JLabel label = new JLabel(icon, JLabel.RIGHT);

public JLabel(String text)
JLabel label = new JLabel("Dog");

public JLabel(String text, int horizontalAlignment)
JLabel label = new JLabel("Dog", JLabel.RIGHT);

public JLabel(String text, Icon icon, int horizontalAlignment)
Icon icon = new ImageIcon("dog.jpg");
JLabel label = new JLabel("Dog", icon, JLabel.RIGHT);

With the constructors for JLabel , you can customize any of three properties of the
JLabel : text , icon , or horizontalAlignment . By default, the text and icon properties are empty,
whereas the initial horizontalAlignment property setting depends on the constructor arguments.
These settings can be any of JLabel.LEFT , JLabel.CENTER , or JLabel.RIGHT . In most cases, not
specifying the horizontalAlignment setting results in a left-aligned label. However, if only the
initial icon is specified, then the default alignment is centered.

JLabel Properties
Table 4-8 shows the 14 properties of JLabel . They allow you to customize the content, position,
and (in a limited sense) the behavior of the JLabel .

Table 4-8. JLabel Properties

Property Name Data Type Access

accessibleContext AccessibleContext Read-only

disabledIcon Icon Read-write bound

displayedMnemonic char Read-write bound

displayedMnemonicIndex int

Read-write bound

horizontalAlignment int Read-write bound

horizontalTextPosition int Read-write bound