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Editorial Team
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Asked: 2026-06-05T16:01:54+00:00

I cant believe fastest solution for a multilined JLabel is the following one (text

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I cant believe fastest solution for a multilined JLabel is the following one (text comes from a var, and so I dont want to put HTML code manually every x chars, its so ugly):

public class JMultilineLabel extends JTextArea{
    private static final long serialVersionUID = 1L;
    public JMultilineLabel(String text){
        super(text);
        setEditable(false);  
        setCursor(null);  
        setOpaque(false);  
        setFocusable(false);  
        setFont(UIManager.getFont("Label.font"));      
        setWrapStyleWord(true);  
        setLineWrap(true);
    }
}

… sure it isnt a better way to handle this????

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1 Answer

  1. Editorial Team

    If you want a multilne label then you simply use HTML in its text, as they support its use. Therefore, use line brake tag </br> to break lines or put separate lines in <p></p> paragraph tags.

    Do not forget to mark that you want to use HTML for a JLabel by starting its text with the <html> tag.

    More available here.

    BTW I forgot to check if there were other related questions about JLabel use and there were at least a few, check this or this. 🙂

    EDIT:

    For a working sample, showing a different approach, without setting a style and with use of paragraph and label taking available space, please see below: 

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

public class LabelHTMLAutoResize {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame f = new JFrame();
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                JPanel p = new JPanel(new BorderLayout());
                JLabel l = new JLabel("<html><p> Some verrrry long text  Some verrrry long  Some verrrry long text dsa ads oiosi o</p>");
                l.setVerticalAlignment(SwingConstants.TOP);
                l.setOpaque(true);
                l.setBackground(Color.green);
                p.add(l);
                f.setContentPane(p);
                /* good practice is to use f.pack(); and let the size be automatically calculated but we want to show line wrapping thus frame size is set */
                f.setSize(200, 200);
                f.setVisible(true);
            }
        });
    }
}
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