this a sample of the content of the eclipse.ini file

With this configuration we start eclipse with JDK1.5, and with enough memory to run and develop J2EE applications.

-showsplash
org.eclipse.platform
-vm
/opt/jdk1.5.0_15/bin/java
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms256m
-Xmx1024m