Hello,

I was using NetBeans in Ubuntu 9.04 when i started a new project and I realized that the line-spacing is so fucking bigger. To fix this you have to do this:

Edit the file "org-netbeans-modules-editor-settings-CustomPreferences.xml"

$ pico org-netbeans-modules-editor-settings-CustomPreferences.xml

This file will be in:

/home/user/.netbeans/6.5/config/Editors/Preferences

If the file and the directory exists just add the following lines:

<entry javaType="java.lang.Float" name="line-height-correction"
xml:space="preserve">
<value><![CDATA[0.75]]></value>
</entry>

If don't you have to create the directory "Preferences":
$ mkdir Preferences
(In /home/user/.netbeans/6.5/config/Editors)

$ cd Preferences

And create the file:

$ pico org-netbeans-modules-editor-settings-CustomPreferences.xml

Add the following lines:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE editor-preferences PUBLIC "-//NetBeans//DTD Editor Preferences 1.0//EN" "http://www.netbeans.org/dtds/EditorPreferences-1_0.dtd">
<editor-preferences>
<entry javaType="java.lang.String" name="code-template-expand-key" xml:space="preserve">
<value><![CDATA[TAB]]></value>
</entry>
<entry javaType="java.lang.Float" name="line-height-correction" xml:space="preserve">
<value><![CDATA[0.75]]></value>
</entry>
</editor-preferences>

Save, restart netbeans and enjoy it. 😉

Good Night,
Matheus

Portuguese Version

References:
http://my.opera.com/Nobita2708/blog/show.dml/2914020
http://www.linux4all.net/how_to_change_line_height_in_netbeans_editor
http://www.cs.wcupa.edu/rkline/netbeans-lin.html
http://www.google.com.br/search?hl=pt-BR&q=line+spacing+ubuntu+netbeans&btnG=Pesquisar&meta=