File list (Check if you may need any files):
InterfaceDemo\.classpath
.............\.project
.............\bin\com\sujata\demo\Calculate.class
.............\...\...\......\....\Color.class
.............\...\...\......\....\Data.class
.............\...\...\......\....\Rectangle.class
.............\...\...\......\....\Shape.class
.............\...\...\......\....\Square.class
.............\src\com\sujata\demo\Shape.java
.............\bin\com\sujata\demo
.............\src\com\sujata\demo
.............\bin\com\sujata
.............\src\com\sujata
.............\bin\com
.............\src\com
.............\bin
.............\src
InterfaceDemo