Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 7.11, Problem 7.11.2CP
How do you modify the selectionSort method in Listing 7.8 to sort numbers in decreasing order?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Try using the ref or out keyword to pass in an array argument and see what happens.
Write this program in Java using a custom method.
Implementation details
You will implement this program in a specific way in order to gain some experience with loops, arrays and array lists.
Use an array of strings to store the 4 strings listed in the description.
Use a do-while loop for your 'game engine'. This means the game starts once the user enters money. The decision to stop occurs at the bottom of the loop. The do-while loop keeps going until the user quits, or there is no money left. The pseudocode for this 'game engine' is shown below:
determine the fruits to display (step 3 below) and print them
determine if there are 3 or 4 of the same image
display the results
update the customer balance as necessary
prompt to play or quit
continue loop if customer wants to play and there's money for another game.
Use the Random class to generate a random number between 0 and 3. This random number will be an index into the array of strings. Add the string at that index to an…
What happens if you use the ref keyword or the out keyword with an array argument and see the results?
Chapter 7 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th 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
Pig Latin Design a program that reads a sentence as input and converts each word to Pig Latin. In one version o...
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Define each of the following terms: entity type entity-relationship model entity instance Attribute relationshi...
Modern Database Management (12th Edition)
The ________ file must beincluded in aprogramthat uses the mathematical functions.
Starting Out with C++ from Control Structures to Objects (9th Edition)
What is the disadvantage of having too many features in a language?
Concepts of Programming Languages (11th Edition)
The following code transposes the elements of an M M array, where M is a constant defined by #define. When com...
Computer Systems: A Programmer's Perspective (3rd Edition)
What are the variables that receive pieces of data in a module called?
Starting Out with Programming Logic and Design (4th 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
- Can you please write the follwing in Java. You will implement this program in a specific way in order to gain some experience with loops, arrays and array lists. Use an array of strings to store the 4 strings listed in the description. Use a do-while loop for your 'game engine'. This means the game starts once the user enters money. The decision to stop occurs at the bottom of the loop. The do-while loop keeps going until the user quits, or there is no money left. The pseudocode for this 'game engine' is shown below: determine the fruits to display (step 3 below) and print them determine if there are 3 or 4 of the same image display the results update the customer balance as necessary prompt to play or quit continue loop if customer wants to play and there's money for another game. Use the Random class to generate a random number between 0 and 3. This random number will be an index into the array of strings. Add the string at that index to an ArrayList. You'll have to do…arrow_forwardUse the right loop for the right assignment, using all the follow- ing loops: for, while without hasNext(), while with hasNext() and do-while. So I cannot use array. it has to be done in java.arrow_forwardgetSumEven Method; public static int getSumEven(int[] array) Returns the sum of even values (if any) present in the array parameter. You can assume array is not null. You may only use one auxiliary function. Your implementation must be recursive and you may not use any loop construct. Do not use ++ or -- in any recursive call argument. It may lead to an infinite recursion. For example, use index + 1, instead of index++. Parameters: array - Returns: Sum of even valuesarrow_forward
- Now your task is to convert array to set. Remember array to set not opposite and print that. In kotlinarrow_forwardLet's add one last user-defined method to the program. This method, called FindName, is to return an integer representing the index (position) in the array where the name is found or 1 otherwise. The approach is to use a simple for loop to search the array and examine each location to see if the name stored at the location is what you are searching for. If it is, return the array index. If you search the entire array and do not find the name, return a -1. The method header will look like: public static int FindName(string name, string[] arrItems, int num) Add the following lines of code to Main after the call to Reverse Dump string locateName "Sue"; int found = if(found >= 0) FindName(locateName, dataArray, n); else Console.WriteLine("{0} was found in the array", locateName); Console.WriteLine("{0} does not exist in the array", locateName); Provide the details (the code) of your FindName method. Copy Copyarrow_forwardCould you please rewrite the code without the map function? If possible please replace it with for loops or sets/dictionaries. Thanks a lot.arrow_forward
- We saw that a merge sort performs roughly the same depending on the type of array we have. For this last exercise, we want to see how the merge sort performs against other sorts. We are using the same two classes that we used a couple of lessons ago. This time the Sorter class has three public methods: mergeSort, insertionSort, and selectionSort. You are also given the SortTester class which has three static methods for creating 3 different types of arrays, random, nearly sorted, and reverse sorted. This test is going to be similar to the previous one, but instead of testing three different types of arrays, you are going to test 3 different types of sorts on the same array type. Create an array using the makeRandomArray method, then take a start time using System.currentTimeMillis(). Next, run the array through the one of the sort methods in the Sorter class. Finally, record the end time and print out the results. You will test each of the 3 sorts. Feel free to also test this with…arrow_forwardA simple improvement to the Insertion Sort code we looked at is to get rid of the calls to “Swap”, and instead do the following: Pull the value to be inserted out of the array and into a variable “toBeInserted”, move elements of the array to the right as long as they are larger than “toBeInserted”, then move “toBeInserted” into the open space in the array. Note that “toBeInserted” may be a substantial object or record, and hence not able to fit into a register variable. Imitate my analysis of Insertion Sort (that used the swap method) with this algorithm. How much better is this revised algorithm than the one I analyzed? Justify your answer.arrow_forwardWe saw that a merge sort performs roughly the same depending on the type of array we have. For this last exercise, we want to see how the merge sort performs against other sorts. We are using the same two classes that we used a couple of lessons ago. This time the Sorter class has three public methods: mergeSort, insertionSort, and selectionSort. You are also given the SortTester class which has three static methods for creating 3 different types of arrays, random, nearly sorted, and reverse sorted. This test is going to be similar to the previous one, but instead of testing three different types of arrays, you are going to test 3 different types of sorts on the same array type. Create an array using the makeRandomArray method, then take a start time using System.currentTimeMillis(). Next, run the array through the one of the sort methods in the Sorter class. Finally, record the end time and print out the results. You will test each of the 3 sorts. Feel free to also test this with…arrow_forward
- 12. You have written a sorting method that takes an array of Object as its parameter. What limitations are imposed on the users of this method?arrow_forwardExercise 1: Write a program that generates a sequence of 20 random values between 0 and 99 in an array, prints the sequence, sorts it, and prints the sorted sequence. Use the sort method from the standard Java library. Exercise 2: Write a program that stores a list of countries: "Egypt", "Switzerland", "Argentina", "Spain", "Portugal", "Luxemburg", etc. Initialize your array with a single statement. Then print out the array. Use the sort function as before to sort the countries in alphabetical order. Reprint your array. Exercise 3: Implement exercises 1 and 2 using ArrayList. Use the Collections.sort method for sorting. After you have printed and sorted your results, then append an additional element to each list and reprint your ArrayLists. Notice that the new items will appear just at the end and will not be sorted. Resort and print out the new ArrayLists again. To clarify, you should print out your ArrayLists after your first sort, after adding items with the…arrow_forwardHow do you sort out items in ArrayList in reverse direction? Reverse order of all elements of Java ArrayList.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
C++ Programming Tutorial 36 - Intro to Loops; Author: Caleb Curry;https://www.youtube.com/watch?v=M3o7Y0juEP0;License: Standard YouTube License, CC-BY