File list (Check if you may need any files):
RefDemo
.......\.classpath
.......\.project
.......\.settings
.......\.........\org.eclipse.jdt.core.prefs
.......\bin
.......\...\com
.......\...\...\jikexueyuan
.......\...\...\...........\ref
.......\...\...\...........\...\Ref1.class
.......\...\...\...........\...\Ref2.class
.......\...\...\...........\...\RefDemo01.class
.......\...\...\...........\...\RefDemo02.class
.......\...\...\...........\...\RefDemo03.class
.......\...\...\...........\staticdemo
.......\...\...\...........\..........\Person.class
.......\...\...\...........\..........\StaticDemo01.class
.......\...\...\...........\..........\StaticDemo02.class
.......\...\...\...........\thisdemo
.......\...\...\...........\........\People.class
.......\...\...\...........\........\People1.class
.......\...\...\...........\........\ThisDemo01.class
.......\...\...\...........\........\ThisDemo02.class
.......\src
.......\...\com
.......\...\...\jikexueyuan
.......\...\...\...........\ref
.......\...\...\...........\...\RefDemo01.java
.......\...\...\...........\...\RefDemo02.java
.......\...\...\...........\...\RefDemo03.java
.......\...\...\...........\staticdemo
.......\...\...\...........\..........\StaticDemo01.java
.......\...\...\...........\..........\StaticDemo02.java
.......\...\...\...........\thisdemo
.......\...\...\...........\........\ThisDemo01.java
.......\...\...\...........\........\ThisDemo02.java