File list (Check if you may need any files):
A7
..\A7Questions.pdf
..\Bouncy.class
..\Bouncy.java
..\Circular.class
..\Circular.java
..\Explosive.class
..\Explosive.java
..\IntNodeEnumerator.java
..\Main1.java
..\Main2.java
..\Main3.class
..\Main3.java
..\Node.java
..\Pair.java
..\Plastic.class
..\Plastic.java
..\Rectangular.class
..\Rectangular.java
..\Shape.class
..\Shape.java
..\Thing.class
..\Thing.java
..\ThingEngine.class
..\ThingEngine.java
..\Triangular.class
..\Triangular.java
..\Type.class
..\Type.java