Java Runtime Environment fonts
Some users may find the default Java fonts or the display mode of fonts in Java applications to be unpleasant. Several methods to improve the font display in the Oracle Java Runtime Environment (JRE) are available. These methods may be used separately, but many users will find they achieve better results by combining them.
TrueType fonts appear to be the best supported format for use with Java.
Anti-aliasing of fonts is available with Oracle Java 1.6 on Linux. To do this on a per user basis, add the following line to the user's
setting with one of the following seven values:
default– No anti-aliasing
on– Full anti-aliasing
gasp– Use the font's built-in hinting instructions
lcd_hrgb– Anti-aliasing tuned for many popular LCD monitors
lcd_hbgr– Alternative LCD monitor setting
lcd_vrgb– Alternative LCD monitor setting
lcd_vbgr– Alternative LCD monitor setting
lcd settings work well in many instances.
Optionally to use GTK look and feel, add the following line to .bashrc instead. Note that the Java options described above and this one only work for applications that draw their GUI in Java, like Jdownloader, and not for applications which utilize Java as backend only, like Openoffice.org and Matlab.
For the above change to take effect,
~/.bashrc must be sourced as the normal user.
$ source ~/.bashrc
Open a new instance of a Java application to test the changes made.
Some Java applications may specify use of a particular TrueType font; these applications must be made aware of the directory path to the desired font. TrueType fonts are installed in the directory
/usr/share/fonts/TTF. Add the following line to
~/.bashrc to enable these fonts.
~/.bashrc as the normal user for the change to take effect.
$ source ~/.bashrc
The Lucida fonts distributed with the Sun JRE are the default for Java applications that do not specify a different font's use. The Lucida fonts were designed for low resolution displays and printers; many users will wish to use other fonts. The default Java fonts can be changed on a system-wide basis by the creation or editing of a file named
As root, change directory to
fontconfig.properties. Then, as root, open the new
fontconfig.properties in an editor.
# cd /opt/java/jre/lib # cp fontconfig.properties.src fontconfig.properties # nano fontconfig.properties
The Java font names in the configuration file are in the form of
genericFontName.style.subset, for example,
serif.plain.latin-1. These generic fonts are mapped to the installed fonts using X logical font description (XLFD) names. The
%d, in the example below, is used as a placeholder in the XLFD name for the point size. The Java application replaces
%d at runtime.
Change the Lucida fonts named in the
fontconfig.properties file to your selected fonts using the XLFD names. Below is an excerpt of a
fontconfig.properties file after modifications have been made. The Lucida fonts have been replaced by DejaVu fonts.
# Version -- a version number is required. # IMPORTANT -- Do not delete the next line. Ever. version=1 # Component Font Mappings # gen_name.style.subset= # -fndry-fmly-wght-slant-sWdth-adstyle-pxlsz-ptSz-resx-resy-spc-avgWdth-rgstry-encdng serif.plain.latin-1=-misc-dejavu serif-medium-r-normal-*-*-%d-*-*-p-*-iso8859-1 serif.bold.latin-1=-misc-dejavu serif-bold-r-normal-*-*-%d-*-*-p-*-iso8859-1 serif.italic.latin-1=-misc-dejavu serif-medium-o-normal-*-*-%d-*-*-p-*-iso8859-1
After the changes have been saved to
fontconfig.properties, the editor may be closed and the user should drop root privileges. Open a new instance of a Java application to test the changes.