File list (Check if you may need any files):
learn
.....\DistanceLearning
.....\................\build
.....\................\.....\client
.....\................\.....\......\Student.class
.....\................\.....\server
.....\................\.....\......\Agent$Problem.class
.....\................\.....\......\Agent.class
.....\................\.....\......\AgentFactory.class
.....\................\.....\......\Teacher$InputPipeMsgListener.class
.....\................\.....\......\Teacher.class
.....\................\build.xml
.....\................\exams
.....\................\.....\AnswersTemplate.xml
.....\................\.....\ExamTemplate.xml
.....\................\.....\history101
.....\................\.....\..........\answers.xml
.....\................\.....\..........\exam.xml
.....\................\lib
.....\................\...\beepcore.jar
.....\................\...\cryptix-asn1.jar
.....\................\...\cryptix32.jar
.....\................\...\jxta.jar
.....\................\...\jxtaptls.jar
.....\................\...\jxtasecurity.jar
.....\................\...\log4j.jar
.....\................\...\minimalBC.jar
.....\................\runStudent.bat
.....\................\runTeacher.bat
.....\................\source
.....\................\......\client
.....\................\......\......\Student.java
.....\................\......\server
.....\................\......\......\Agent.java
.....\................\......\......\AgentFactory.java
.....\................\student01
.....\................\.........\runStudent.bat
.....\................\student02
.....\................\.........\runStudent.bat
.....\................\teacher
.....\................\.......\runTeacher.bat
.....\Teacher.java