AdditiveExpression ::= MultiplicativeExpression OptRestOfAdd;
AddOp ::= "+" | "-";
AllocationExpression ::= "new" PrimitiveType ArrayDimsAndInits |"new" Name ArrayDimsAndInits| "new" Name Arguments |"new" Name Arguments ClassBody;
AndExpression ::= EqualityExpression OptRestOfAnd;
ArgumentList ::= Expression OptRestOfArg;
Arguments ::= "(" ")" |"(" ArgumentList ")";
ArrayDimsAndInits ::= ArrayPrefix OptBrackets| "[" "]" ArrayInitializer;
ArrayInitializer ::= "{" OptVariableInitializers OptComma "}";
ArrayPrefix ::= "[" Expression "]" ArrayPrefix;
AssignmentOperator ::= "=" | "*=" | "/=" | "%=" | "+=" | "-=" | "<<=" | ">>=" | ">>>=" | "&=" | "^=" | "|=";
Block ::= "{" BlockStatements "}";
BlockStatement ::=  LocalVariableDeclaration ";"| Statement | UnmodifiedClassDecl;
BlockStatements ::= | BlockStatement BlockStatements ;
BooleanLiteral::= "true" | "false";
Brackets ::= |  "[" "]" Brackets ;
BreakStatement ::= "break" ";" |"break" "id" ";";
CastExpression ::= "(" Type ")" UnaryExpression |"(" Type ")" UnaryExpressionNotPlusMinus;
CatchList ::= | "catch" "(" FormalParameters ")" Block CatchList ;
ClassBody ::= "{" ClassBodyDecls "}";
ClassBodyDecl ::= Initializer | NestedClassDecl | NestedInterfaceDecl | MethodDecl| ConstructorDecl | FieldDecl;
ClassBodyDecls ::= | ClassBodyDecl ClassBodyDecls ;
ClassDecl ::= ClassSpecifications UnmodifiedClassDecl;
ClassSpecification ::= "abstract" | "final" | "public";
ClassSpecifications  ::= | ClassSpecification ClassSpecifications;
Compare ::= "==" | "!=";
CompilationUnit ::= OptPackageDecl ImportDecls TypeDecls;
ConditionalAndExpression ::= InclusiveOrExpression OptRestOfIncl;
ConditionalExpression ::= ConditionalOrExpression OptRestOfCondExpression;
ConditionalOrExpression ::= ConditionalAndExpression OptRestOfCond;
ConstructorDecl ::= ConstructorSpecifications "id" FormalParameters OptThrows "{" OptExplicitConstrInvoc BlockStatements "}";
ConstructorSpecification ::= "public" | "protected" | "private"| ;
ConstructorSpecifications ::=  ConstructorSpecification ConstructorSpecifications ;
ContinueStatement ::= "continue" ";" |"continue" "id" ";";
DoStatement ::= "do" Statement "while" "(" Expression ")" ";";
EmptyStatement ::= ";";
EqualityExpression ::= InstanceOfExpression OptRestOfEq;
ExclusiveOrExpression ::= AndExpression OptRestOfExcl;
ExplicitConstructorInvocation ::= "this" Arguments ";" |  OptPrim "super" Arguments ";";
Expression ::= ConditionalExpression OptRestOfExpr;
Extension ::= | "extends" Name ;
FieldDecl ::= FieldSpecifications Type VariableDeclarator VariableDeclarators;
FieldSpecification ::= "public" | "protected" | "private" | "static" | "final" | "transient" | "volatile";
FieldSpecifications ::= FieldSpecification FieldSpecifications|;
FormalParameters ::= "("  ")" |"(" Parameter OptParameters ")";
ForStatement ::= "for" "(" OptForInit ";" OptExpression ";" OptForUpdate ")" Statement;
IfStatement ::= "if" "(" Expression ")" Statement OptElse;
Implements ::= | "implements" NameList ;
ImportDecl ::= "import" Name OptEndImport ";" ;
ImportDecls ::= |ImportDecl ImportDecls ;
InclusiveOrExpression ::= ExclusiveOrExpression OptRestOfInclOr;
IncrDecr ::= "++" | "--";
Initializer ::= "static" Block | Block;
InstanceOfExpression ::= RelationalExpression OptInstanceOf;
InterfaceDecl ::= InterfaceSpecifications UnmodifiedInterfaceDecl;
InterfaceExtension ::= | "extends" NameList;
InterfaceMemberDecl ::= NestedClassDecl | NestedInterfaceDecl | MethodDecl | FieldDecl;
InterfaceMemberDecls ::= | InterfaceMemberDecl InterfaceMemberDecls;
InterfaceSpecification ::= "abstract" | "public";
InterfaceSpecifications ::= | InterfaceSpecification InterfaceSpecifications ;
LabeledStatement ::= "id" ":" Statement;
Literal ::= "int_literal" | "float_literal" | "char_literal" | "string_literal"| BooleanLiteral | NullLiteral;
LocalVariableDeclaration ::= OptFinal Type VariableDeclarators;
MethodBlock ::= Block |";";
MethodDecl ::= MethodSpecifications ResultType MethodDeclarator OptThrows MethodBlock;
MethodDeclarator ::= "id" FormalParameters Brackets;
MethodSpecification ::= "public" | "protected" | "private" | "static" | "abstract" | "final" | "native" | "synchronized";
MethodSpecifications ::= | MethodSpecification MethodSpecifications ;
MultiplicativeExpression ::= UnaryExpression OptRestOfMult;
MultOp ::= "*" | "/" | "%";
Name ::= "id" Quals;
NameList ::= Name Names;
Names ::= | "," NameList ;
NestedClassDecl ::= NestedSpecifications UnmodifiedClassDecl;
NestedInterfaceDecl ::= NestedInterfaceSpecifications UnmodifiedInterfaceDecl;
NestedInterfaceSpecification ::= "static" | "abstract" | "final" | "public" | "protected" | "private";
NestedInterfaceSpecifications ::= | NestedInterfaceSpecification NestedInterfaceSpecifications ;
NestedSpecification ::= "static" | "final" | "abstract" | "public" | "protected" | "private";
NestedSpecifications ::= | NestedSpecification NestedSpecifications;
NullLiteral ::= "null";
OptBrackets ::= |Brackets;
OptComma ::= | "," ;
OptElse  ::= |"else" Statement ;
OptEndImport ::="." "*";
OptExplicitConstrInvoc ::= | ExplicitConstructorInvocation ;
OptExpression ::=  | Expression;
OptFinal ::= | "final" ;
Optfinal ::= |"final";
OptFinally ::= | "finally" Block ;
OptForInit ::= | LocalVariableDeclaration | StatementExpressionList ;
OptForUpdate ::= StatementExpressionList;
OptInstanceOf ::= | "instanceof" Type ;
OptPackageDecl ::=  | PackageDecl ;
OptParameters ::= "," Parameter OptParameters ;
OptPrim ::= | PrimaryExpression ".";
OptRestOfAdd ::=  | AddOp AdditiveExpression;
OptRestOfAnd ::=  | "&" AndExpression;
OptRestOfArg ::=  "," ArgumentList;
OptRestOfCond ::= | "||" ConditionalOrExpression;
OptRestOfCondExpression ::= | "?" Expression ":" ConditionalExpression ;
OptRestOfEq ::=  | Compare EqualityExpression;
OptRestOfExcl ::=  | "^" ExclusiveOrExpression;
OptRestOfExpr ::= AssignmentOperator Expression;
OptRestOfIncl ::=  | "&&" ConditionalAndExpression;
OptRestOfInclOr ::= | "|" InclusiveOrExpression;
OptRestOfMult ::=  | MultOp MultiplicativeExpression;
OptRestOfRel ::=  | Relop RelationalExpression;
OptRestOfRRest ::= | SwitchLabelList ;
OptRestOfShift ::= | ShiftOp ShiftExpression;
OptRestOfStmt ::= |"++" | "--" | AssignmentOperator Expression;
OptRestOfStmtExprList ::=  | "," StatementExpressionList;
OptRestOfVarId ::= | "=" VariableInitializer;
OptRestOfVarInit ::= | "," VariableInitilizers;
OptThrows ::= | "throws" NameList;
OptVariableInitializers ::= | VariableInitilizers ;
PackageDecl ::= "package" Name ";";
Parameter ::= Optfinal Type VariableDeclaratorId;
PostfixExpression ::= PrimaryExpression IncrDecr;
PreDecrementExpression ::= "--" PrimaryExpression;
PreIncrementExpression ::= "++" PrimaryExpression;
PrimaryExpression ::= PrimaryPrefix PrimarySuffixes;
PrimaryPrefix ::= Literal | "this" | "super" "." "id"|"(" Expression ")"| AllocationExpression |ResultType "." "class" | Name;
PrimarySuffix ::= "." "this" | "." AllocationExpression | "[" Expression "]" | "." "id" |Arguments;
PrimarySuffixes ::= PrimarySuffix PrimarySuffixes |;
PrimitiveType ::= "boolean" | "char" | "byte" | "short" | "int" | "long" | "float" | "double";
Qual ::= "." "id";
Quals ::= |Qual Quals ;
RelationalExpression ::= ShiftExpression OptRestOfRel;
Relop ::= "<" | ">" |"<=" | ">=";
RestOfSwitchLabelList ::= BlockStatements OptRestOfRRest;
ResultType ::= "void" | Type;
ReturnStatement ::= "return" ";" |"return" Expression ";";
ShiftExpression ::= AdditiveExpression OptRestOfShift;
ShiftOp ::= "<<" | ">>" | ">>>";
Statement ::= LabeledStatement | Block | EmptyStatement | StatementExpression ";"| SwitchStatement | IfStatement |WhileStatement | DoStatement | ForStatement |BreakStatement | ContinueStatement | ReturnStatement| ThrowStatement | SynchronizedStatement | TryStatement;
StatementExpression ::= PreIncrementExpression | PreDecrementExpression | PrimaryExpression OptRestOfStmt;
StatementExpressionList ::= StatementExpression OptRestOfStmtExprList;
SwitchLabel ::= "case" Expression ":" |"default" ":";
SwitchLabelList ::= | SwitchLabel RestOfSwitchLabelList;
SwitchStatement ::= "switch" "(" Expression ")" "{" SwitchLabelList "}";
SynchronizedStatement ::= "synchronized" "(" Expression ")" Block;
ThrowStatement ::= "throw" Expression ";";
TryStatement ::= "try" Block CatchList OptFinally;
Type ::= PrimitiveType Brackets | Name Brackets;
TypeDecl ::= ClassDecl|InterfaceDecl|";" ;
TypeDecls ::= | TypeDecl TypeDecls ;
UnaryExpression ::= AddOp UnaryExpression |PreIncrementExpression | PreDecrementExpression | UnaryExpressionNotPlusMinus;
UnaryExpressionNotPlusMinus ::= "~" UnaryExpression | "!" UnaryExpression | CastExpression | PostfixExpression;
UnmodifiedClassDecl ::= "class" "id" Extension Implements ClassBody;
UnmodifiedInterfaceDecl ::= "interface" "id" InterfaceExtension "{" InterfaceMemberDecls "}";
VariableDeclarator ::= VariableDeclaratorId OptRestOfVarId;
VariableDeclaratorId ::= "id" | "id" "[""]";
VariableDeclarators ::= VariableDeclarator VariableDeclarators;
VariableInitializer ::= ArrayInitializer |Expression;
VariableInitilizers ::= VariableInitializer OptRestOfVarInit;
WhileStatement ::= "while" "(" Expression ")" Statement;