Binary Expression Tree

Binary Tree Program Example:  Prefix notation calculator based on a binary expression tree

ExprTree.java      Expression tree — Prefix notation calculator  (text version)
ExprTree.jar        Executable jar file
ExprTree.rtf         Class hand-out — above code as two-column eight-point text.
ExprWalk.rtf        Hand-out on recursive versus non-recursive implementations
ExprWalk.html     Above in web format
ExprWalk.java     ExprTree.java expanded to verify the exprWalk() method