yes, use RandomAccessFile, see exampled here:RANDOM ACCESS FOR FILES
http://developer.java.sun.com/developer/TechTips/2000/tt0509.html#tip1Use a RandomAccessFile to build a low-level database
http://www.javaworld.com/javaworld/jw-01-1999/jw-01-step.html
http://developer.java.sun.com/developer/TechTips/2000/tt0509.html#tip1Use a RandomAccessFile to build a low-level database
http://www.javaworld.com/javaworld/jw-01-1999/jw-01-step.html
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