Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 14E
Write a recursive method that will duplicate each character in a string and return the result as a new string. For example, if “book” the argument, the result would be “bbooookk”.
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Given an input string, complete a helper method that extracts the vowels and returns the string of the vowels in the input string recursively.
All strings are lowercase.
Do not use any loops or regular expressions.
Test case 1:
extractVowel("i love you 3000")
"ioeou"
Test case 2:
extractVowel("aiueo")
"aiueo"
Given methods:
public static String extractVowel (String str) {
return extractVowelHelper (str, 0, "");
}
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private static boolean isVowel (char c){
return c == 'a' || c == 'e' || c == 'i' || c == '0' || == 'u';
}
5.
6.
7.
In Java code do the following:Write a method that accepts a String as an argument. The method should use recursion to display each individual character in the String:
Write a recursive method that will reverse the order of the characters in agiven string and return the result as a new string. For example, if "book" isthe argument, the result would be "koob".
Chapter 11 Solutions
Java: An Introduction to Problem Solving and Programming (7th 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 - 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. 10PP
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