MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects
7th Edition
ISBN: 9780134793672
Author: GADDIS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 15, Problem 1MC
Program Description Answer
When a method is called from the main method then, it calls itself four times and the depth of the recursion will be four.
Hence, the correct option is “B”.
Expert Solution & Answer
Explanation of Solution
Four:
The depth of the recursion depends on the number of times the method calls itself.
Explanation for incorrect options:
One:
The depth of the recursion depends on the number of times the method calls itself and it is given that the method calls itself four times.
Hence, option “A” is wrong.
Five:
The depth of the recursion depends on the number of times the method calls itself and it is given that the method calls itself four times.
Hence, the option “C” is wrong.
Nine:
The depth of the recursion depends on the number of times the method calls itself and it is given that the method calls itself four times.
Hence, the option “D” is wrong.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Python Programming ONLY PLEASE NO JAVA
Use recursion to determine the number of digits in an integer n.
Hint: If n is < 10, it has one digit. Otherwise, it has one more digit than n / 10.
Write the method and then write a test program to test the method
Your test program must:
Ask the user for a number
Print the number of digits in that number. (describe the numbers printed to the console)
Use program headers and method header comments in your code.
1. Recursive Multiplication
Write a recursive function that accepts two arguments into the parameters x and y. The
function should return the value of x times y. Remember, multiplication can be performed
as repeated addition as follows:
7* 4 = 4 + 4 + 4 +4 + 4 + 4 + 4
CodeWorkout
Gym
Course
Search exercises...
Q Search
kola shreya@columbus
X275: Recursion Programming Exercise: Check Palindrome
X275: Recursion Programming Exercise: Check
Palindrome
Write a recursive function named checkPalindrome that takes a string as input, and returns true if the string is a
palindrome and false if it is not a palindrome. A string is a palindrome if it reads the same forwards or backwards.
Recall that str.charAt(a) will return the character at position a in str. str.substring(a) will return the substring of
str from position a to the end of str,while str.substring(a, b) will return the substring of str starting at position
a and continuing to (but not including) the character at position b.
Examples:
checkPalindrome ("madam") -> true
Your Answer:
1 public boolean checkPalindrome (String s) {
4
CodeWorkout © Virginia Tech
About
License
Privacy
Contact
Chapter 15 Solutions
MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects
Ch. 15.2 - It is said that a recursive algorithm has more...Ch. 15.2 - Prob. 15.2CPCh. 15.2 - What is a recursive case?Ch. 15.2 - What causes a recursive algorithm to stop calling...Ch. 15.2 - What is direct recursion? What is indirect...Ch. 15 - Prob. 1MCCh. 15 - This is the part of a problem that can be solved...Ch. 15 - This is the part of a problem that is solved with...Ch. 15 - This is when a method explicitly calls itself. a....Ch. 15 - Prob. 5MC
Ch. 15 - Prob. 6MCCh. 15 - True or False: An iterative algorithm will usually...Ch. 15 - True or False: Some problems can be solved through...Ch. 15 - True or False: It is not necessary to have a base...Ch. 15 - True or False: In the base case, a recursive...Ch. 15 - Find the error in the following program: public...Ch. 15 - Prob. 1AWCh. 15 - Prob. 2AWCh. 15 - What will the following program display? public...Ch. 15 - Prob. 4AWCh. 15 - What will the following program display? public...Ch. 15 - Convert the following iterative method to one that...Ch. 15 - Write an iterative version (using a loop instead...Ch. 15 - What is the difference between an iterative...Ch. 15 - What is a recursive algorithms base case? What is...Ch. 15 - What is the base case of each of the recursive...Ch. 15 - What type of recursive method do you think would...Ch. 15 - Which repetition approach is less efficient: a...Ch. 15 - When recursion is used to solve a problem, why...Ch. 15 - How is a problem usually reduced with a recursive...Ch. 15 - Prob. 1PCCh. 15 - isMember Method Write a recursive boolean method...Ch. 15 - String Reverser Write a recursive method that...Ch. 15 - maxElement Method Write a method named maxElement,...Ch. 15 - Palindrome Detector A palindrome is any word,...Ch. 15 - Character Counter Write a method that uses...Ch. 15 - Recursive Power Method Write a method that uses...Ch. 15 - Sum of Numbers Write a method that accepts an...Ch. 15 - Ackermarms Function Ackermanns function is a...Ch. 15 - Recursive Population Class In Programming...
Knowledge Booster
Similar questions
- 3-The following pattern of numbers is called Pascal's triangle. 1 1 1 14 641 The numbers at the edge of the triangle are all 1, and each number inside the triangle is the sum of the two numbers above it. Write a procedure that computes elements of Pascal's triangle by means of a recursive process. 1 1 1 2 1 3 3arrow_forwardA function is called once from a program’s main function, and then it calls itself four times. The depth of recursion is _______________.a. oneb. fourc. fived. ninearrow_forwardUse Java programming language Write a program that asks the user to enter 5 test grades (use an array to store them). Output the grades entered, the lowest and highest grade, the average grade, how many grades are above the average and how many are below and the letter grade for the average grade. Create a method that returns the lowest grade. Create a method that returns the highest grade. Create a method that returns the average grade. Create a method that returns how many grades were above the average. Create a method that returns how many grades were below the average. Create a method that returns the letter grade of the average (90-100 – A, 80-89 – B, 70-79 – C, < 70 – F)arrow_forward
- Use Java programming language Write a program that asks the user to enter 5 test grades (use an array to store them). Output the grades entered, the lowest and highest grade, the average grade, how many grades are above the average and how many are below and the letter grade for the average grade. Create a method that returns the lowest grade. Create a method that returns the highest grade. Create a method that returns the average grade. Create a method that returns how many grades were above the average. Create a method that returns how many grades were below the average. Create a method that returns the letter grade of the average (90-100 - A, 80-89 - B, 70-79 - C, < 70 - F)arrow_forwardIn a recursive solution, the _____ case is easily calculated, provides a stopping criterion, and prevents infinite loops. In the _____ case, the solution calls itself.arrow_forward28Recursive methods must always contain a path that does not contain a recursive call. T OR Farrow_forward
- JAVA Problem description:You are to write a program called Seasons that prompts the user for a month and day and displays the season in which that date occurs. For reference, we will use the following date cutoffs for the various seasons: Winter December 21 – March 19 Spring March 20th – June 20th Summer June 21st – September 20th Fall September 21st – December 20th Data Validation For this program, you'll write a specific method to perform data validation based on the month and day entered. More specifically: Month – the month entered must be a valid month of the year (January – December). Day – the day entered must be a valid day for that month: January, March, May, July, August, October, December have 1-31 days. April, June, September, November have 1-30 days. February has 1-28 days (do not worry about leap years) Required program decomposition String getMonth(Scanner console) This method is called from the main method and should prompt for the month as a string…arrow_forwardMagic Number of coding-:A number is said to be a magic number,if summing the digits of the number and then recursively repeating this process for the given sumuntill the number becomes a single digit number equal to 1. Example: Number = 50113 => 5+0+1+1+3=10 => 1+0=1 [This is a Magic Number] Number = 1234 => 1+2+3+4=10 => 1+0=1 [This is a Magic Number] Number = 199 => 1+9+9=19 => 1+9=10 => 1+0=1 [This is a Magic Number] Number = 111 => 1+1+1=3 [This is NOT a Magic Number].arrow_forward5. Palindrome Detector A palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes: Able was I, ere I saw Elba A man, a plan, a canal, Panama Desserts, I stressed Kayak Write a boolean method that uses recursion to determine whether a string argument is a palindrome. The method should return true if the argument reads the same forward and backward. Demonstrate the method in a program.arrow_forward
- Magic Number coding question---1. A number is said to be a magic number,if summing the digits of the number and then recursively repeating this process for the given sumuntill the number becomes a single digit number equal to 1. Example: Number = 50113 => 5+0+1+1+3=10 => 1+0=1 [This is a Magic Number] Number = 1234 => 1+2+3+4=10 => 1+0=1 [This is a Magic Number] Number = 199 => 1+9+9=19 => 1+9=10 => 1+0=1 [This is a Magic Number] Number = 111 => 1+1+1=3 [This is NOT a Magic Number].arrow_forwardPlease code in python Forbidden concepts: recursion, custom classes Create a program that takes a university student’s name, their 1st parent’s income, and their second parent’s income. If the average income between the parents is $40,000 or below, then it would put them into a Tuition Grant list. If it’s above, then it would be a Full Tuition Required list. Once the university admission officer has completed inputting all the students, the program will end and print out the two lists.arrow_forwardCreate an executable class that uses the following methods. The following methods illustrate the concept of recursion. Please complete this part of the programarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education