Install Standard Java runtime environment
# apt-get install default-jre

List of jre:
# apt-cache search jre
default-jre – Standard Java or Java compatible Runtime
default-jre-headless – Standard Java or Java compatible Runtime (headless)
docbook-xsl – stylesheets for processing DocBook XML to various output formats
gcj-4.6-jre – Java runtime environment using GIJ/classpath
gcj-4.6-jre-headless – Java runtime environment using GIJ/classpath (headless version)
gcj-4.6-jre-lib – Java runtime library for use with gcj (jar files)
gcj-jre – Java runtime environment using GIJ/classpath
gcj-jre-headless – Java runtime environment using GIJ/classpath (headless version)
icedtea-6-jre-cacao – Alternative JVM for OpenJDK, using Cacao
icedtea-6-jre-jamvm – Alternative JVM for OpenJDK, using JamVM
libreoffice – office productivity suite
openjdk-6-jre – OpenJDK Java runtime, using Hotspot JIT
openjdk-6-jre-headless – OpenJDK Java runtime, using Hotspot JIT (headless)
openjdk-6-jre-lib – OpenJDK Java runtime (architecture independent libraries)
icedtea-7-jre-cacao – Alternative JVM for OpenJDK, using Cacao
icedtea-7-jre-jamvm – Alternative JVM for OpenJDK, using JamVM
libanimal-sniffer-java – JDK/API verification tools
libcommons-exec-java – a library to reliably execute external processes from within the JVM
libgeronimo-osgi-support-java – Java libraries providing OSGi lookup support for Geronimo projects
libgeronimo-osgi-support-java-doc – Documentation for libgeronimo-osgi-support-java
libjrexx-java – automaton based regular expression API for java
openjdk-6-jre-zero – Alternative JVM for OpenJDK, using Zero/Shark
openjdk-7-jre – OpenJDK Java runtime, using Hotspot JIT
openjdk-7-jre-headless – OpenJDK Java runtime, using Hotspot JIT (headless)
openjdk-7-jre-lib – OpenJDK Java runtime (architecture independent libraries)
openjdk-7-jre-zero – Alternative JVM for OpenJDK, using Zero/Shark