Newline in JLabel

2018-06-04 21:00:45

How can I display a newline in JLabel ?

For example, if I wanted:

Hello World!
blahblahblah

This is what I have right now:

JLabel l = new JLabel("Hello World!nblahblahblah", SwingConstants.CENTER);

This is what is displayed:

Hello World!blahblahblah

Forgive me if this is a dumb question, I'm just learning some Swing basics...

围绕与所述串<html></html>并用破线<br/> 。

JLabel l = new JLabel("<html>Hello World!<br/>blahblahblah</html>", SwingConstants.CENTER);

You can try and do this:

myLabel.setText("<html>" + myString.replaceAll("<","&lt;").replaceAll(">", "&gt;").replaceAll("n", "<br/>") + "</html>")

The advantages of doing this are:

It replaces all newlines with <br/> , without fail.

It automatically replaces eventual < and > with < and > respectively, preventing some render havoc.

What it does is:

"<html>" + adds an opening html tag at the beginning

.replaceAll("<", "<").replaceAll(">", ">") escapes < and > for convenience

.replaceAll("n", "<br/>") replaces all newlines by br (HTML line break) tags for what you wanted

... and + "</html>" closes our html tag at the end.

PS: I'm very sorry to wake up such an old post, but whatever, you have a reliable snippet for your Java!

You can use the MultilineLabel component in the Jide Open Source Components.

http://www.jidesoft.com/products/oss.htm

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