# update-alternatives --config java

There are 5 alternatives which provide `java'.

  Selection    Alternative
-----------------------------------------------
      1        /usr/bin/gij-wrapper-4.1
 +    2        /usr/lib/jvm/java-gcj/jre/bin/java
      3        /etc/alternatives/kaffe-system/bin/java
      4        /usr/lib/j2re1.5-sun/bin/java
*     5        /usr/lib/jvm/java-1.5.0-sun/jre/bin/java

Press enter to keep the default[*], or type selection number:
debian:/home/anonymous/Desktop# dpkg --search sun_java5 dpkg: *sun_java5* not found.
debian:/home/anonymous/Desktop# dpkg --search sun-java5
sun-java5-bin: /usr/share/application-registry/sun-java5-web-start.applications
sun-java5-jre: /usr/share/doc/sun-java5-jre/JAVA_HOME
sun-java5-bin: /usr/share/mime-info/sun-java5-archive.mime
sun-java5-bin: /usr/share/icons/sun-java5.xpm
sun-java5-bin: /usr/share/icons/sun-java5.png
sun-java5-bin: /usr/share/applications/sun-java5-javaws.desktop
sun-java5-jre: /usr/share/doc/sun-java5-jre/changelog.gz
sun-java5-bin: /usr/share/menu/sun-java5-bin
sun-java5-jre: /usr/share/doc/sun-java5-jre/changelog.Debian.gz
sun-java5-bin: /usr/share/application-registry/sun-java5-archive.applications
sun-java5-jre: /usr/share/doc/sun-java5-jre/CHANGES.gz
sun-java5-bin: /usr/lib/mime/packages/sun-java5-bin
sun-java5-jre: /usr/share/doc/sun-java5-jre/README.Debian
sun-java5-bin: /usr/share/mime-info/sun-java5-web-start.keys
sun-java5-jre: /usr/share/doc/sun-java5-jre/README.alternatives
sun-java5-jre: /usr/share/doc/sun-java5-jre/copyright
sun-java5-bin: /usr/share/lintian/overrides/sun-java5-bin
sun-java5-bin: /usr/share/doc/sun-java5-bin
sun-java5-jre: /usr/share/lintian/overrides/sun-java5-jre
sun-java5-jre: /usr/share/doc/sun-java5-jre
sun-java5-bin: /usr/share/control-center-2.0/capplets/sun-java5-policytool.desktop
sun-java5-jre: /usr/share/doc/sun-java5-jre/README.gz
sun-java5-jre: /usr/share/doc/sun-java5-jre/TODO.Debian
sun-java5-bin: /usr/share/mime-info/sun-java5-archive.keys
sun-java5-bin: /usr/share/control-center-2.0/capplets/sun-java5-controlpanel.desktop
sun-java5-bin: /usr/share/mime-info/sun-java5-web-start.mime
sun-java5-bin: /usr/share/applications/sun-java5-java.desktop