Recursive Descending subroutine with EBNF rule, using C or Java syntax Type (Recursive-Descent Subprogram): -> while (); The lex method to be used reads a single lexeme, and the lexemes' token code is in the nextToken variable. is to the left. Suppose that the defined tokens are respectively: while - WHILE_CODE

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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write java code please.Do not send the same code, what is the code output?

Question 4.
Recursive Descending subroutine with EBNF rule, using C or Java syntax
Type (Recursive-Descent Subprogram):
<while_loop> -> while (<condition>) <statement>;
The lex method to be used reads a single lexeme, and the lexemes' token code is in the nextToken variable.
is to the left. Suppose that the defined tokens are respectively:
while - WHILE_CODE
left parantex - LEFTPAREN_CODE
right parenthesis - RIGHTPAREN_CODE
semicolon - SEMICOLON_ CODE
If any error is caught, create the function that calls the error function.
Transcribed Image Text:Question 4. Recursive Descending subroutine with EBNF rule, using C or Java syntax Type (Recursive-Descent Subprogram): <while_loop> -> while (<condition>) <statement>; The lex method to be used reads a single lexeme, and the lexemes' token code is in the nextToken variable. is to the left. Suppose that the defined tokens are respectively: while - WHILE_CODE left parantex - LEFTPAREN_CODE right parenthesis - RIGHTPAREN_CODE semicolon - SEMICOLON_ CODE If any error is caught, create the function that calls the error function.
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