Concepts Of Programming Languages
12th Edition
ISBN: 9780134997186
Author: Sebesta, Robert W.
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 4, Problem 13RQ
Explanation of Solution
The reason named constants are used:
The lexical analyzers collect the characters of the input string and group them into logical groups according to the pattern matching rules. These logical groupings are called as lexemes.
Lexical analyzer assigns some internal (numeric) codes to the lexemes (logical groupings) according to their structure. Instead of assigning numeric codes, named constants are used for token codes due to the following reasons:
- Gives better readability to the code...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What is the difference between and
?
In c++. Read all instructions.
Building Arena models:
A few years ago, I was in a group involved with building industrial facilities. A team of consultants visited us to make a presentation about improving the building process. They had a demonstration in the form of a game.
We were divided into two teams of four and sat four in a row at a table. Person 1 was given 100 poker chips. The game process was Person 1 would roll a single die. Whatever the number was, he or she would pass that number of chips to Person 2. Person 2 would roll the die, and
• If the number of the roll is less than or equal to the chips in front of Person 2, the number of the die roll is passed to the next person. Any remaining chips stay in place, to be passed on another turn when possible.• If the roll on the die is greater than the number of the chips in front of Person 2, all the chips are passed, but the difference in what could be passed is lost on that turn.
For example, if Person 2 has 3 chips and rolls a “1,” then one chip is passed.…
Chapter 4 Solutions
Concepts Of Programming Languages
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - Prob. 17RQCh. 4 - Prob. 18RQCh. 4 - Prob. 19RQCh. 4 - Prob. 20RQCh. 4 - Prob. 21RQCh. 4 - Prob. 22RQCh. 4 - Prob. 23RQCh. 4 - What was Knuths insight in developing the LR...Ch. 4 - Prob. 25RQCh. 4 - Prob. 26RQCh. 4 - Is left recursion a problem for LR parsers?Ch. 4 - Prob. 1PSCh. 4 - Prob. 2PSCh. 4 - Prob. 3PSCh. 4 - Prob. 4PSCh. 4 - Prob. 7PSCh. 4 - Prob. 8PS
Knowledge Booster
Similar questions
- openGL : C++ languagearrow_forwardComputer Science The term “knowledge” is defined in the dictionary (Oxford Learner’s Dictionaries) as the information, understanding, and skills that a person gains through education or experience. So, it is expected that only human-beings can possess and use knowledge. However, with machine learning and deep learning, it now seems that “machine” can also possess and use knowledge. For example, Google’s AlphaGO won three-match series against the world’s best Go players. Can “machine” possess and use knowledge? What do you think? Please provide details and examples to support your opinions.arrow_forwardDescribe how garbage collection in programming languages helps in managing unused variables and constants.arrow_forward
- convert uml to java codearrow_forwardBook information: Textbook: Introduction to Java Programming and Data Structures, Comprehensive Version, Edition: 11th Author: Y. Daniel Liang Publisher: Pearson ISBN: 9780134670942 --------------------------------------------------------- PROBLEM: Prompt the user to enter a string containing a hexadecimal number. Use class Integer to parse the input to a base-10 integer variable and display it. Convert this base-10 variable to a string holding an equivalent number in binary. Print this binary equivalent. Use class Integer to convert the binary string back to base-10 and display it.arrow_forwardPlease Use Only C++ Language. C++ Language answer will get the upvote surely. The chef has N marks. Each marker has a cap. For each valid i, the ith tag has color ai And initially, for each valid i, the cap colour on the ith mark is also ai. The chef wants to rearrange the caps so that no tag has the same color as the cap. (Obviously, each brand must have exactly one cap.) Can he, do it? If he can, find one such way to rearrange the caps. If there are multiple solutions, you can find any. Input 2 9 111222333 2 11 Output Yes 22 23 33 111 Noarrow_forward
- 2+2=0 How? .........arrow_forwardJava or fortanarrow_forwardPlease give som examples in Python for questions below. Please give detail examples Relational diagram for code (a diagram showing how classes and methods interact) Class constructors, specifically a student constructor Classes and methodsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT