File list (Check if you may need any files):
ExpPostfijo\build.xml
...........\build
...........\.....\classes
...........\.....\.......\ArrayQueue$QueueIterator.class
...........\.....\.......\ArrayQueue.class
...........\.....\.......\ArrayStack.class
...........\.....\.......\Postfijo$StackInterface.class
...........\.....\.......\Postfijo.class
...........\.....\.......\QueueException.class
...........\.....\.......\QueueInterface.class
...........\.....\.......\StackException.class
...........\.....\.......\StackInterface.class
...........\manifest.mf
...........\nbproject
...........\.........\build-impl.xml
...........\.........\genfiles.properties
...........\.........\private
...........\.........\.......\private.properties
...........\.........\.......\private.xml
...........\.........\project.properties
...........\.........\project.xml
...........\src
...........\...\ArrayQueue.java
...........\...\ArrayStack.java
...........\...\Postfijo.java