How to format a text in JLabel
Question
I need to display a JLabel text in this format.
Hoffenheim 1 : 0 Koeln
Bayern 2 : 1 HSV
I just can't get this done. I've tried String.format() without luck. Any advice?
3 answers
solution1
6 ACCPTED 2012-07-17 23:20:31
You can use HTML. Read How to Use HTML in Swing Components for details. For example you could build a table, similar to the following:
import javax.swing.JLabel;
import javax.swing.JOptionPane;
public class StringDemo {
public static void main(String arg[]){
StringBuilder buff = new StringBuilder();
buff.append("<html><table>");
buff.append(String.format("<tr><td align='right'>%s</td><td>:</td><td>%s</td></tr>", "Hoffenheim 1", "0 Koeln"));
buff.append(String.format("<tr><td align='right'>%s</td><td>:</td><td>%s</td></tr>", "Bayern 2", "1 HSV"));
buff.append("</table></html>");
JOptionPane.showMessageDialog(null, new JLabel(buff.toString()));
}
}
solution2
3 2012-07-17 23:09:15
String.format() is used to insert content into a specially formatted string, not to display the string differently. JLabels and other Swing components do allow HTML however, which may get you what you need.
new JLabel("<html><pre> Hoffenheim 1 : 0 Koeln</pre></html>");
new JLabel("<html><pre> Bayern 2 : 1 HSV</pre></html>");
That said, it looks like what you're asking for is to center your text around those colons, not just have them a given number of spaces away from the edge. That's going to be a little trickier, but still possible. To do this, you'll want to actually break everything up into several labels and arrange them in a grid (I find MigLayout to be very good for things like this).
Create six JLabels, left, right, or center aligning them as appropriate, and drop then into a grid like so:
| Hoffenheim 1 | : | 0 Koeln |
| Bayern 2 | : | 1 HSV |
Obviously you can disable borders and so-on such that it doesn't appear to the user to be anything other than a nicely formatted bit of text.
solution3
2 2012-07-17 23:17:07
Extending on from dimo414 answer you could actually use a HTML table
StringBuilder sb = new StringBuilder(128);
sb.append("<html>");
sb.append("<table border='0'>");
sb.append("<tr>");
sb.append("<td align='right'>Hoffenheim</td>");
sb.append("<td align='center'>1</td>");
sb.append("<td align='center'>:</td>");
sb.append("<td align='center'>0</td>");
sb.append("<td align='left'>Koeln</td>");
sb.append("</tr>");
sb.append("<tr>");
sb.append("<td align='right'>Bayern</td>");
sb.append("<td align='center'>2</td>");
sb.append("<td align='center'>:</td>");
sb.append("<td align='center'>1</td>");
sb.append("<td align='left'>HSV</td>");
sb.append("</tr>");
sb.append("</table>");
sb.append("</html>");
label.setText(sb.toString());
While this is far more complicated, it gives you greater flexibility over the formatting.
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