Answered: reads a Java program and makes a list…

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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Question

Design a program that reads a Java program and makes a list of all the user-defined identifiers. You will need a second list of all the Java reserved words. Whenever you encounter a token, search the list of reserved words. If the token is not a reserved word, you then should search the list of user-defined identifiers. If the token is not on either list, you should add it to the list of identifiers. Java

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Step 1

Algorithm:

Create a list of reserved words.
Iterate through the document, line by line.
- Extract the words from the line into an array
- Iterate through the words:
  - If the word is not a constant and is not a reserved word and is not in the required list.
  - Add that word to the list.

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