Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
11th Edition
ISBN: 9780134671710
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 7, Problem 7.34PE
(Sort characters in a string) Write a method that returns a sorted string using the following header:
public static String sort(String s)
For example, sort ("acb") returns abc.
Write a test
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string
Write the countVowels function which counts the number of vowels using the string class as follows:
int countVowels(const string& s)
Write a test program that prompts the user to enter a string, invokes the countVowels function and displays the total number of vowels in the string.
public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string.This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is,str = new StringBuilder(str).reverse().toString();
Here's the tester it must pass:
@Test public void testPancakeScramble() throws IOException {// Explicit test casesassertEquals("", P2J3.pancakeScramble(""));assertEquals("alu",…
Chapter 7 Solutions
Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
Ch. 7.2 - Prob. 7.2.1CPCh. 7.2 - Prob. 7.2.2CPCh. 7.2 - What is the output of the following code? int x =...Ch. 7.2 - Indicate true or false for the following...Ch. 7.2 - Which of the following statements are valid? a....Ch. 7.2 - Prob. 7.2.6CPCh. 7.2 - What is the array index type? What is the lowest...Ch. 7.2 - Write statements to do the following: a. Create an...Ch. 7.2 - What happens when your program attempts to access...Ch. 7.2 - Identify and fix the errors in the following code:...
Ch. 7.2 - What is the output of the following code? 1....Ch. 7.4 - Will the program pick four random cards if you...Ch. 7.5 - Use the arraycopy method to copy the following...Ch. 7.5 - Prob. 7.5.2CPCh. 7.7 - Suppose the following code is written to reverse...Ch. 7.8 - Prob. 7.8.1CPCh. 7.8 - Prob. 7.8.2CPCh. 7.9 - Prob. 7.9.1CPCh. 7.9 - Prob. 7.9.2CPCh. 7.10 - If high is a very large integer such as the...Ch. 7.10 - Prob. 7.10.2CPCh. 7.10 - Prob. 7.10.3CPCh. 7.11 - Prob. 7.11.1CPCh. 7.11 - How do you modify the selectionSort method in...Ch. 7.12 - What types of array can be sorted using the...Ch. 7.12 - To apply java.util.Arrays.binarySearch (array,...Ch. 7.12 - Show the output of the following code: int[] list1...Ch. 7.13 - This book declares the main method as public...Ch. 7.13 - Show the output of the following program when...Ch. 7 - (Assign grades) Write a program that reads student...Ch. 7 - (Reverse the numbers entered) Write a program that...Ch. 7 - (Count occurrence of numbers) Write a program that...Ch. 7 - (Analyze scores) Write a program that reads an...Ch. 7 - (Print distinct numbers) Write a program that...Ch. 7 - (Revise Listing 5.1 5, PrimeNumber.java) Listing...Ch. 7 - (Count single digits) Write a program that...Ch. 7 - (Average an array) Write two overloaded methods...Ch. 7 - (Find the smallest element) Write a method that...Ch. 7 - Prob. 7.10PECh. 7 - (Statistics: compute deviation) Programming...Ch. 7 - (Reverse an array) The reverse method in Section...Ch. 7 - Prob. 7.13PECh. 7 - Prob. 7.14PECh. 7 - 7 .15 (Eliminate duplicates) Write a method that...Ch. 7 - (Execution time) Write a program that randomly...Ch. 7 - Prob. 7.17PECh. 7 - (Bubble sort) Write a sort method that uses the...Ch. 7 - (Sorted?) Write the following method that returns...Ch. 7 - (Revise selection sort) In Listing 7 .8, you used...Ch. 7 - (Sum integers) Write a program that passes an...Ch. 7 - (Find the number of uppercase letters in a string)...Ch. 7 - (Game: locker puzzle) A school bas 100 lockers and...Ch. 7 - (Simulation: coupon collectors problem) Coupon...Ch. 7 - (Algebra: solve quadratic equations) Write a...Ch. 7 - (Strictly identical arrays) The arrays 1ist1 and...Ch. 7 - (Identical arrays) The arrays 1ist1 and 1ist2 are...Ch. 7 - (Math: combinations) Write a program that prompts...Ch. 7 - (Game: pick four cards) Write a program that picks...Ch. 7 - (Pattern recognition: consecutive four equal...Ch. 7 - (Merge two sorted Lists) Write the following...Ch. 7 - (Partition of a list) Write the following method...Ch. 7 - Prob. 7.33PECh. 7 - (Sort characters in a string) Write a method that...Ch. 7 - (Game: hangman) Write a hangman game that randomly...Ch. 7 - (Game: Eight Queens) The classic Eight Queens...Ch. 7 - Prob. 7.37PE
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
For each of the following activities, give a PEAS description of the task environment and characterize it in te...
Artificial Intelligence: A Modern Approach
What is the difference between operating system software and application software?
Starting Out With Visual Basic (7th Edition)
The decimal number 17 is equal to the binary number 10010 11000 10001 01001
Digital Fundamentals (11th Edition)
Roulette Wheel Colors On a roulette wheel, the pockets are numbered from 0 to 36. The colors of the pockets are...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
The following pseudocode works, but it performs a case-sensitive validation of the user's input. How could the ...
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Create a class polynomial that is used to evaluate a polynomial function of x: P(x) = a0 + a1x + a2x + + an1xn...
Java: An Introduction to Problem Solving and Programming (8th 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
- public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string. This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is, str = new StringBuilder(str).reverse().tostring(); A bit convoluted, but does what is needed without fuss or muss. Maybe one day the Java strings will come with the reverse method built in, just like the string data types of all sensible…arrow_forwardTopics: User-defined functions, list, string, docstringProblem Statement: This program finds the unique letters from a given string and printsthe unique letters and their count. For example: word ‘LITTLE’ has ‘L’, ‘I’, ‘T’, ‘E’ are theunique letters.Lab Scenario:The program repeats until hits ‘n’. The program takes a user input of a string. The programfinds the unique letters in the string, add them in a list and displays the list and their count.Consider the following important points:1) You need to design a user-defined function named count_unique_letters whichtakes user word as parameter and returns the list of unique letters calledunique_letters in the given word.a. Hint: Iterate over each letter in user word, check if the letter is in the list, if notadd it to the list, otherwise continue to the next letter. A ‘in’ keyword can helpto determine if a character in the unique_letters list.b. You need to write a simple docstring for this function.2) Your program must have a main()…arrow_forwarddef swap_text(text): Backstory: Luffy wants to organize a surprise party for his friend Zoro and he wants to send a message to his friends, but he wants to encrypt the message so that Zoro cannot easily read it. The message is encrypted by exchanging pairs of characters. Description: This function gets a text (string) and creates a new text by swapping each pair of characters, and returns a string with the modified text. For example, suppose the text has 6 characters, then it swaps the first with the second, the third with the fourth and the fifth with the sixth character. Parameters: text is a string (its length could be 0)Return value: A string that is generated by swapping pairs of characters. Note that if the Examples: swap_text ("hello") swap_text ("Party for Zoro!") swap_text ("") def which_day(numbers): → 'ehllo'→ 'aPtr yof roZor!' → '' length of the text is odd, the last character remains in the same position.arrow_forward
- Write a function that reverses a string. The header of the function is: def reverse(s):Write a test program that prompts the user to enter a string, invokes the reverse function, and displays the reversed string.arrow_forwardWrite a function that finds the number of occurrences of a specified character in a string using the following header:def count(s, ch):The str class has the count method. Implement your method without using the count method. For example, count("Welcome", 'e') returns 2. Write a test program that prompts the user to enter a string followed by a character and displays the number of occurrences of the character in the string.arrow_forward?(ls empty string e L(G Yes Noarrow_forward
- public String firstAndLast(String str) { //declare and create your first char //declare and create your second char //return your first and last char as a String }arrow_forwardQ1:Write C code for a program that reads two positive integer number, checks whether these number are co-prime or not, and prints the result.Note: two numbers are co-prime numbers if they do not have a common factor other than 1. For example, 10 and 11 are co-prime.arrow_forwardQ5. (Find the second lowest interger number) Write a program that prompts the user to enter a set of integer numbers, and finally displays the second lowest integer number in the set. To exit from the program enter -1. Here is a sample run Enter a set of integer numbers: 3 57 928-1 The second lowest number is 3.arrow_forward
- Q7: (Find the second lowest integer number) Write a program that prompts the user to enter a set of integer numbers, and finally displays the second lowest integer number in the set. To exit from the program enter -1. Here is a sample run Enter a set of integer numbers: 3 5 7 9 2 8 -1 The second lowest number is 3arrow_forwardrin t] (Replace strings) Write the following function that replaces the occurrence of a substring old substring new_substring in the string s. The function returns true if string s is changed, and otherwise, it returns false. bool replace_strings(string& s, with new substring a const string& old_string, const string& new_string) Write a test program that prompts the user to enter three strings, i.e., s, old_string, and new_string, and display the replaced string.arrow_forwardpython: a function that counts the number of occurrences of given character in a given string. For example, calling the function with Count(‘j’, ‘just joshin’) returns 2. Note the function counts the character regardless of case.arrow_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
Program to find HCF & LCM of two numbers in C | #6 Coding Bytes; Author: FACE Prep;https://www.youtube.com/watch?v=mZA3cdalYN4;License: Standard YouTube License, CC-BY