Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 11.1, Problem 6STQ
Complete the definition of the following method. Your definition should be recursive. Unlike the method in Question 5, this method does not restrict the sign or value of its argument. You can use the same technique you used for Question 5, but you should have one more recursive case for negative exponents (Hints 104 is 1/10–6 for negative values of n. Also, if a is negative, –n is positive)
/**
Precondition: n can be any int.
Returns 10 to the power n.
*/
public static int computeTenToThe (int n)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Do the trace in detail and submit The source Code As Well
From the following recursive method Trace (in details) the calling of the above method with any input from your choice such that thereturned value will be 19.
public static int think(int x) {if(x<10)if(x%2!=0)return x;elsereturn 0;elseif(x%2!=0)return x%10 + think(x/10);elsereturn think(x/10);}
1. Let product(n,m) be a recursive method that computes the product of two positive integers, using only addition and subtraction. To make this method a recursive one, you are to make a) a base case when m = 1, b) a general case when m ≠ 1. For a general case, the return value should be n plus the result of a recursive call to the method product() with parameters n and m - 1. Write a short Java code for this method, along with a test program.
Demonstrate your understanding of recursion by creating a recursive method of your own.
Start with the recursive method outline below:
int recurs (__________){ if (__________) return __________; // stopping base case else return __________; // recursive call}
Fill in the blanks to create your own original recursive method.
Post your method code.
Then demonstrate a call to your recursive method that requires the method to call itself at least twice before the stopping case is encountered.
For each pass (call) show:
The values for the parameters of the call, going forward
What values are passed back from the call, going back
Chapter 11 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 11.1 - What output will be produced by the following...Ch. 11.1 - What is the output produced by the following code?Ch. 11.1 - Write a recursive definition for the following...Ch. 11.1 - What is the output of the following code? public...Ch. 11.1 - Prob. 5STQCh. 11.1 - Complete the definition of the following method....Ch. 11.2 - Revise the method getCount in Listing 11.5 so that...Ch. 11.2 - Prob. 8STQCh. 11.2 - Prob. 9STQCh. 11.2 - Suppose you want me class ArraySearcher to work...
Ch. 11.2 - What Java statement will sort the following array,...Ch. 11.2 - How would you change the class MergeSort so that...Ch. 11.2 - How would you change the class MergeSort so that...Ch. 11.2 - If a value in an array of base type int occurs...Ch. 11.3 - Convert the following event handler to use the...Ch. 11 - What output will be produced by the following...Ch. 11 - What output will be produced by the following...Ch. 11 - Write a recursive method that will compute the...Ch. 11 - Write a recursive method that will compute the sum...Ch. 11 - Complete a recursive definition of the following...Ch. 11 - Write a recursive method that will compute the sum...Ch. 11 - Write a recursive method that will find and return...Ch. 11 - Prob. 8ECh. 11 - Write a recursive method that will compute...Ch. 11 - Suppose we want to compute the amount of money in...Ch. 11 - Prob. 11ECh. 11 - Write a recursive method that will count the...Ch. 11 - Write a recursive method that will remove all the...Ch. 11 - Write a recursive method that will duplicate each...Ch. 11 - Write a recursive method that will reverse the...Ch. 11 - Write a static recursive method that returns the...Ch. 11 - Write a static recursive method that returns the...Ch. 11 - One of the most common examples of recursion is an...Ch. 11 - A common example of a recursive formula is one to...Ch. 11 - A palindrome is a string that reads the same...Ch. 11 - A geometric progression is defined as the product...Ch. 11 - The Fibonacci sequence occurs frequently in nature...Ch. 11 - Prob. 4PPCh. 11 - Once upon a time in a kingdom far away, the king...Ch. 11 - There are n people in a room, where n is an...Ch. 11 - Prob. 7PPCh. 11 - Prob. 10PPCh. 11 - Prob. 12PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
A file that contains a Flash animation uses the __________ file extension. a. .class b. .swf c. .mp3 d. .flash
Web Development and Design Foundations with HTML5 (9th Edition) (What's New in Computer Science)
In what ways are abstract data types and classes similar? In what ways are they different?
Computer Science: An Overview (12th Edition)
A ______ controlled loop uses a true/false condition to control the number of times that it repeats. a. Boolean...
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
_____ are characters or symbols that perform operations on one or more operands.
Starting Out With Visual Basic (7th Edition)
(Tabular Output) Write a program that utilizes looping to produce the following table of values:
C How to Program (8th Edition)
Assume the following declaration exists : enum Coffee { MEDIUM, DARK, DECAF } Find the error(s) in the followin...
Starting Out with Java: From Control Structures through Objects (6th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- The following recursive method has been created. This method accepts two integer parameters called a and b respectively. Assume that the name of the method is m and the code in the recursive method is: if ( a > b ) return; if(a % 10 == 3) System.out.print(a+ " "); m(a+1, b); <---- recursive call } what would be the output with the following call m(1,50) where a is 1 and b is 50arrow_forwardChoose the correct one for the following recursive method when n is 3 int recursiveSum(int n) { if (n==0) return 0; return n+recursiveSum(n-1); } a. First and Last recursive call share the same copy of parameter n in memory. b. Every recursive call shares the same copy of parameter n in memory. c. There will be a separate copy of parameter n in memory for each recursive call. d. none of these e. Only First and Last recursive call have separate copies of parameter n in memory.arrow_forwardPlease explain the questions related to the code below: //1. Why is 20 printed 3 times and why does it start with 1, but end with 2? //2. What is the base case for this recursive method and why? //3. How would you implement this using a loop? //4. What is each if statement checking? //5. Would a solution to this using loops require more or less code and would it be more or less effecient? //6. Why is recursion a good choice to solve this problem? //7. How can recursion become infinite? //8. When is recursion appropriate? /* Load the code below into a cloud compiler and run each method one at a time by removing the comments for the method. Walk through the code as a group and explore how the code works. Submit the answers to the numbered questions for credit. */ public class DemoRecur { //Simple statement designed to show control flow in recursion public static void printDemo(int x, int max) {…arrow_forward
- The nth harmonic number is defined non-recursively as: H(n)=1+1/2+1/3+1/4+...+1/n Come up with a recursive definition and use it to guide you to write a method definition for a double-valued method named “harmonic” that accepts an int parameter n and recursively calculates and returns the nth harmonic number. Write a test program that displays the harmonic numbers, H(n)=1,2,3,4...10arrow_forwardhi I am writing a recursive method for the sum of a number, it works but I am unsure how it works and I would like to understand how it works? public static int sumDigits(int num) { if (num == 0) { return (0); } return (num%10) + sumDigits(num/10); }arrow_forwardPlease Give answer in C# Write a recursive method which sums all the even numbers up to a given number. For example if you call it with 10, it would return 30 because 10+8+6+4+2=30 Write a RECURSIVE method called sumEven It must take in an int (the max you wish to sum to) It must return an int (the sum) If it's passed in an even number it should sum the number passed in with all the even numbers before it. For example if passed 8, it would sum 8+6+4+2=20 If it's passed an odd number it should still sum only the EVEN numbers. What we mean is that sumEven(9) should return 8+6+4+2=20. Not 9+7+5+3+1. Hint: You'll have an if statement with the base condition, an else if for even and an else if for odd. In the case of odd, just call yourself with the next lowest even number. In your main method, open a file called "Carlton.txt" for writing. Use a loop to call the method above multiple times and print a line to the file for each iteration of the loop: The sum of even numbers up to 0 is 0 The…arrow_forward
- Java, Rewrite the following iterative method as a recursive method that computes the same thing. Note: your recursive method will require an extra parameter.public int iterative1(int x){int count = 0, factor = 2;while (factor < x){if (x % factor == 0) count++;factor++;}return count;}arrow_forwardJAVA Question 2: For two integers m and n, their GCD (Greatest Common Divisor) can be computed by a recursive method. Write a recursive method gcd(m,n) to find their Greatest Common Divisor. Method body: If m is 0, the method returns n. If n is 0, the method returns m. If neither is 0, the method can recursively calculate the Greatest Common Divisor with two smaller parameters: One is n, the second one is m mod n (or m % n). The recursive method cannot have loops. Note: although there are other approaches to calculate Greatest Common Divisor, please follow the instructions in this question, otherwise you will not get the credit. main method: Prompt and read in two numbers to find the greatest common divisor. Call the gcd method with the two numbers as its argument. Print the result to the monitor. Example program run: Enter m: 12 Enter n: 28 GCD(12,28) = 4 And here is what I have so far, package CSCI1302;import java.util.*;public class RecursionDemo { public static void…arrow_forwardThis program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix the problem. Manually trace the recursive call, fn(2,3) and show the output (step by step). Can you identify the Base Case in recursive method fn(int x, int y)?arrow_forward
- Using JAVA Recursive Power Method Write a method called powCalthat uses recursion to raise a number to a power. The method should accept two arguments: The first argument is the exponentand the second argument is the number to be raised(example”powCal(10,2)means2^10). Assume that the exponent is anonnegative integer. Demonstrate the method in a program called Recursive (This means that you need to write a program that has at least two methods: mainand powCal. The powCal method is where you implement the requirements above and the main method is where you make a method call to demonstrate how your powCalmethod work).arrow_forwardWhich of the following is/are true regarding the characteristics of recursion? a.Every recursive call reduces the original problem, bringing it increasingly closer to a base case until it becomes that case. b.Recursive method requires less memory than an iterative method. c. It is possible to convert every recursive method to an iterative method. d.The method is implemented using an if-else or a switch statement that leads to different cases. e.One or more base cases are used to stop recursion.arrow_forwardAnswer usig Java The "odd/even factorial" of a positive integer n is represented as n!! and is defined non-recursively as: (n)(n-2)(n-4)...(4)(2) if n is even and is (n)(n-2)(n-4)...(5)(3)(1) if n is odd. For example7!!equals7*5*3*1or105 and 6!! equals 6*4*2 or 48. Come up with a recursive definition forn!! and use it to guide you to write a method definition for a method called oddevenfact that recursively calculates the odd/even factorial value of its single int parameter. The value returned by oddevenfact is a long.arrow_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
Introduction to Big O Notation and Time Complexity (Data Structures & Algorithms #7); Author: CS Dojo;https://www.youtube.com/watch?v=D6xkbGLQesk;License: Standard YouTube License, CC-BY