java.FILE
  IMPORT_LIST
    <empty list>
  CLASS
    MODIFIER_LIST
      <empty list>
    CLASS_KEYWORD
    WHITE_SPACE
    IDENTIFIER
    TYPE_PARAMETER_LIST
      <empty list>
    EXTENDS_LIST
      <empty list>
    IMPLEMENTS_LIST
      <empty list>
    WHITE_SPACE
    LBRACE
    WHITE_SPACE
    METHOD
      MODIFIER_LIST
        <empty list>
      TYPE_PARAMETER_LIST
        <empty list>
      TYPE
        BOOLEAN_KEYWORD
      WHITE_SPACE
      IDENTIFIER
      PARAMETER_LIST
        LPARENTH
        RPARENTH
      THROWS_LIST
        <empty list>
      WHITE_SPACE
      CODE_BLOCK
        LBRACE
        WHITE_SPACE
        DECLARATION_STATEMENT
          LOCAL_VARIABLE
            MODIFIER_LIST
              <empty list>
            TYPE
              INT_KEYWORD
            WHITE_SPACE
            IDENTIFIER
            WHITE_SPACE
            EQ
            WHITE_SPACE
            LITERAL_EXPRESSION
              INTEGER_LITERAL
            SEMICOLON
        WHITE_SPACE
        EXPRESSION_STATEMENT
          ASSIGNMENT_EXPRESSION
            REFERENCE_EXPRESSION
              REFERENCE_PARAMETER_LIST
                <empty list>
              IDENTIFIER
            WHITE_SPACE
            GTGTEQ
            WHITE_SPACE
            LITERAL_EXPRESSION
              INTEGER_LITERAL
          SEMICOLON
        WHITE_SPACE
        RETURN_STATEMENT
          RETURN_KEYWORD
          WHITE_SPACE
          BINARY_EXPRESSION
            LITERAL_EXPRESSION
              INTEGER_LITERAL
            WHITE_SPACE
            GE
            WHITE_SPACE
            LITERAL_EXPRESSION
              INTEGER_LITERAL
          SEMICOLON
        WHITE_SPACE
        RBRACE
    WHITE_SPACE
    RBRACE