File list (Check if you may need any files):
lesson01
........\.classpath
........\.project
........\bin
........\...\bits
........\...\....\Operation_delete.class
........\...\....\Operation_insert.class
........\...\....\Operation_update.class
........\...\....\Practice.class
........\mysql-connector-java-5.0.5-bin.jar
........\src
........\...\bits
........\...\....\Operation_delete.java
........\...\....\Operation_insert.java
........\...\....\Operation_update.java
........\...\....\Practice.java
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