Description: You are required to implement a Scanner program for Java programming language in any programming language. The program should be able to accept the input from the file provided by the user. The scanner will then scan the code file and identifies all the tokens and list them as the output for user. In case of an invalid token, Scanner should mention that a given token is invalid. The scanner should consider following token categories; Pre-Processing: Before scanning the code your program shall pre-process the input code and remove all the single-line and multi-line comments from the code. Token Categories Keywords All Keywords Special Symbols Assignment Operator = Unary Operators ++ -- ! Arithmetic Operators + - * / % Relational Operators < <= > >= == != Conditional Operators && || Symbols ( ) { } [ ] . , ; : ‘’ “” Identifier Integer Positive & Negative Real Number Positive & Negative Character Literal String Lit
Description: You are required to implement a Scanner program for Java programming language in any programming language. The program should be able to accept the input from the file provided by the user. The scanner will then scan the code file and identifies all the tokens and list them as the output for user. In case of an invalid token, Scanner should mention that a given token is invalid. The scanner should consider following token categories; Pre-Processing: Before scanning the code your program shall pre-process the input code and remove all the single-line and multi-line comments from the code. Token Categories Keywords All Keywords Special Symbols Assignment Operator = Unary Operators ++ -- ! Arithmetic Operators + - * / % Relational Operators < <= > >= == != Conditional Operators && || Symbols ( ) { } [ ] . , ; : ‘’ “” Identifier Integer Positive & Negative Real Number Positive & Negative Character Literal String Lit
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Description: You are required to implement a Scanner program for Java
Pre-Processing: Before scanning the code your program shall pre-process the input code and remove all the single-line and multi-line comments from the code.
Token Categories
- Keywords
- All Keywords
- Special Symbols
- Assignment Operator
- =
- Unary Operators
- ++ -- !
- Arithmetic Operators
- + - * / %
- Relational Operators
- < <= > >= == !=
- Conditional Operators
- && ||
- Symbols
- ( ) { } [ ] . , ; : ‘’ “”
- Identifier
- Integer
- Positive & Negative
- Real Number
- Positive & Negative
- Character Literal
- String Literal
- Assignment Operator
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