Stanford ten
............\.classpath
............\.project
............\.settings
............\.........\org.eclipse.jdt.core.prefs
............\bin
............\...\BouncingBall.class
............\...\Geometry.class
............\...\HelloProgram.class
............\lib
............\...\acm.jar
............\src
............\...\BouncingBall.java
............\...\Geometry.java
............\...\HelloProgram.java