JLabel - Swing Label Class

**hariharan_00** · 10-02-2010

I really want some help from you guys.!! I have recently started using the different classes in Java components. Now I have given an assignment for the Swing Label Class..!!I don't know anything about this class. Even I don't know the use of Swing Label Class in JLabel.?? Can someone explain me with some details.?? Also tell me when we use this class.? Expecting some needful help soon..!!

**Deabelos** · 10-02-2010

You should be knowing about the label first before looking at the coding of it. As the name suggest, you can guess that a label does not react to input events. So, it cannot get the keyboard focus. A JLabel object can display either text, an image. Sometimes it can display both text and an image. You can specify where in the label's display area the label's contents are aligned by setting the vertical and horizontal alignment. The position of the text relative to the image can also be specified by you. The text is on the trailing edge of the image, by default.

**CodGuru** · 10-02-2010

JLabel is used exactly like Label as a way to display text. JLabel is frequently used as a way to put an image in a display because it can have an image instead of or in addition to the text. The ComponentOrientation property determines the label's leading and trailing edge. Also the default ComponentOrientation setting maps the leading edge to left and the trailing edge to right. If you want to set the pixels between the text and the image, you can use the setIconTextGap method.

**MindSpace** · 10-02-2010

If you need to create a component that displays a string, an image, or both, you can do so by using or extending JLabel. By specifying HTML code in a label's text, you can give the label various characteristics such as multiple lines, multiple fonts or multiple colors. The three features of JLabel different from the Label are :

The ability to display images.
The ability to place borders around the labels.
The ability to use HTML to format the label.

**Zecho** · 10-02-2010

The following codes explains the JLabel with HTML :

Code:

import java.awt.*;
import javax.swing.*;

public class JLabels extends JFrame {
  public static void main(String[] args) {
    new JLabels();
  }

  public JLabels() {
    super("HTML used in JLabels");
    WindowUtilities.setNativeLookAndFeel();
    addWindowListener(new ExitListener());
    Container content = getContentPane();
    Font font = new Font("Georgia", Font.PLAIN, 20);
    content.setFont(font);
    String labelText =
      "<html><FONT COLOR=BLUE>Blue</FONT> and " +
      "<FONT COLOR=YELLOW>Yellow</FONT> Text</html>";
    JLabel coloredLabel =
      new JLabel(labelText, JLabel.CENTER);
    coloredLabel.setBorder
      (BorderFactory.createTitledBorder("Mixed Colors"));
    content.add(coloredLabel, BorderLayout.NORTH);
    labelText =
      "<html><B>Bold</B> and <I>Italic</I> Text</html>";
    JLabel boldLabel =
      new JLabel(labelText, JLabel.CENTER);
    boldLabel.setBorder
      (BorderFactory.createTitledBorder("Mixed Fonts"));
    content.add(boldLabel, BorderLayout.CENTER);
    labelText =
      "<html>Unity in Diversity " +
      "can be seen in this Country." +
      "<P>" +
      "The Oceans are :" +
      "<UL>" +
      "  <LI>Atlantic" +
      "  <LI>Pacific" +
      "  <LI>Indian" +
      "  <LI>Artic" +
      "</UL>";
    JLabel fancyLabel =
      new JLabel(labelText,
                 new ImageIcon("images/pic51.gif"),
                 JLabel.CENTER);
    fancyLabel.setBorder
      (BorderFactory.createTitledBorder("Contains Many Lines HTML"));
    content.add(fancyLabel, BorderLayout.SOUTH);
    pack();
    setVisible(true);
  }
}

**Pratim** · 10-02-2010

I am providing you with the sample of the code which would be useful for you to create the labels :

Code:

ImageIcon icon = createImageIcon("picture12.gif");
. . .
label1 = new JLabel("Image and Text",
                    icon,
                    JLabel.CENTER);
//Set the position of the text, relative to the icon:
label1.setVerticalTextPosition(JLabel.BOTTOM);
label1.setHorizontalTextPosition(JLabel.CENTER);

label2 = new JLabel("Text-Only Label");
label3 = new JLabel(icon);

Hope that it helps..!!