Add .gitignore
Add build.xml and manifest.mf
Add nbproject files
Add RArrayList.java

R [Robot] implementation of an ArrayList in Java SE 1.4
Add RDoubleNode.java

R [Robot] implementation of a DoubleNode in Java SE 1.4
Add RLinkedList.java

R [Robot] implementation of a Linked List in Java SE 1.4
Add RList.java

R [Robot] implementation of a List Interface in Java SE 1.4