Jabinit A Java GUI for the ABINIT Density Functional Theory Code (http://www.abinit.org/), allowing band structure calculations for simple crystals. The band structure plot uses code from the Ptolemy Project at U.C. Berkeley (http://ptolemy.eecs.berkeley.edu/java/ptplot/). Code from the Jmol applet (http://jmol.org/) is used to display the crystal structure. Version 09.06.09 Developed by Simon Rochester with advice from John. C. Morrison. Java Runtime Environment 1.4 or later is required. The server is set up to use the Linux abinis executable (included in the jabinit tarfile). Only minimal modifications should be needed to use an abinis executable for a different platform. To use, start the server: ./JabinitServer Open index.html in a browser or with appletviewer: appletviewer index.html The server listens on port 9097. To recompile Java code, type: make The Makefile is set up to use javac. This version compiled with javac version 1.6.0_06 (Ubuntu 3.4.6-6ubuntu5) Send questions and comments to johnc@erdos.math.louisville.edu