7.8回文
.......\build
.......\.....\classes
.......\build.xml
.......\manifest.mf
.......\nbproject
.......\.........\build-impl.xml
.......\.........\genfiles.properties
.......\.........\private
.......\.........\.......\private.properties
.......\.........\project.properties
.......\.........\project.xml
.......\src
.......\...\回文
.......\...\....\Main.java
.......\test