An object-oriented top-down parser in Java that translates every TinyJavaPL program into an equivalent sequence of byte codes for a Java Virtual Machine
program -> decls stmts end
decls -> int idlist ;
idlist -> id { , id }
stmts -> stmt [ stmts ]
cmpdstmt-> '{' stmts '}'
stmt -> assign | loop | cond
assign -> id = expr ;
loop -> while '(' rexp ')' cmpdstmt
cond -> if '(' rexp ')' cmpdstmt [ else cmpdstmt ]
rexp -> expr (< | > | = | !=) expr
expr -> term [ (+ | -) expr ]
term -> factor [ (* | /) term ]
factor -> int_lit | id | ‘(‘ expr ‘)’