java can call this class implements the drawing functions, but only if the use of this class is that your computer has installed GraphViz software, you can download the windows version http://www.graphviz.org/Gallery.php, after Bahrain, dot.exe find the path where,

graphviz-java-api
.................\.settings
.................\.........\org.eclipse.jdt.core.prefs
.................\bin
.................\...\Proba.class
.................\...\GraphViz.class
.................\.project
.................\src
.................\...\Proba.java
.................\...\GraphViz.java
.................\.classpath
.................\tmp
.................\sample
.................\......\simple.dot

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