Error Eclipse: No Java virtual machine…

Eh!!! Tux, deja de pegarte cabezazos….. Ejem, Hola Tuxeros:

YO: ¿Que te pasa, Tux?

Tux: Mira lo que me dice el Eclipse: “A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following locations:/usr/lib/j2sdk1.4-sun/bin/java”

YO: …………….

TUX: ???????

Yo:  Ya!!!!!!!!!