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
Videos
Textbook Question
Chapter 22, Problem 22.25PE
(Game: Sudoku) Revise
FIGURE 22.17 The program can display multiple Sudoku solutions. Source: Copyright © 1995–2016 Oracle and/or its affiliates. All rights reserved. Used with permission.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Individual Exercise: Sieve of Eratosthenes
O The Sieve of Eratosthenes is a technique for finding all the prime numbers up to a given last number.
o It can be implemented as a program by using the algorithm (steps) given below.
" Create a variable for the last number initialized as 100 etc. (e.g., int lastNumber = 100;)
• Create a boolean array isPrime[] to keep track of which numbers up to lastNumber are prime.
O The length of the array must be equal to lastNumber + 1 as the array indexes start from zero.
o Note: The default value is false for all the array elements when a boolean array is created by using new.
' Set all the array elements beginning from index = 2 (the first prime number) to true.
' Outer loop: Repeat the following steps for each number num within 2 <= num <= lastNumber / num.
o if isPrime[num] is true (meaning that num is prime as no factors exist for num):
" Inner loop: Set the isPrime[] elements for all the multiples of num to false.
O When the nested loop ends,…
Question Completion Status:
Write a Java program that uses ArrayList and Iterator, It should input from user the names and ages of your few
friends in a loop and add into ArrayList. Finally, it should use an terator to display the data in a proper format.
(Sample run of the program)
List of my Friends
Enter name and age [friend# 0]
Khalid Al-shamrí
22.5
Do you want to add another friend (y/ny? y
Enter name and age [friend# 1]
Rahsed Al anazi
21.1
Do you want to add another friend (y/ny? y
Enter name and age (friend# 2]
Salem Al mutaits
23.7
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Save A
C Programming Language (Code With C Programming Language)
Problem Title : Visible Trees
There is a legend about a magical park with N × N trees. The trees are positioned in a square grid with N rows (numbered from 1 to N from north to south) and N columns (numbered from 1 to N from west to east). The height (in metres) of each tree is an integer between 1 and N × N, inclusive. Magically, the height of all trees is unique.
Bunga is standing on the northmost point of the park and wants to count the number of visible trees for each Column. Similarly, Lestari is standing on the westmost point of the park and wants to count the number of visible trees for each Row. A tree X is visible if all other trees in front of the tree X are shorter than the tree X.
For example, let N = 3 and the height (in metres) of the trees are as follows6 1 87 5 32 9 4
On the first column, Bunga can see two trees, as the tree on the third row is obstructed by the other trees.
On the second column, Bunga can see…
Chapter 22 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 22.2 - Prob. 22.2.1CPCh. 22.2 - What is the order of each of the following...Ch. 22.3 - Count the number of iterations in the following...Ch. 22.3 - How many stars are displayed in the following code...Ch. 22.3 - Prob. 22.3.3CPCh. 22.3 - Prob. 22.3.4CPCh. 22.3 - Example 7 in Section 22.3 assumes n = 2k. Revise...Ch. 22.4 - Prob. 22.4.1CPCh. 22.4 - Prob. 22.4.2CPCh. 22.4 - Prob. 22.4.3CP
Ch. 22.4 - Prob. 22.4.4CPCh. 22.4 - Prob. 22.4.5CPCh. 22.4 - Prob. 22.4.6CPCh. 22.5 - Prob. 22.5.1CPCh. 22.5 - Why is the recursive Fibonacci algorithm...Ch. 22.6 - Prob. 22.6.1CPCh. 22.7 - Prob. 22.7.1CPCh. 22.7 - Prob. 22.7.2CPCh. 22.8 - Prob. 22.8.1CPCh. 22.8 - What is the difference between divide-and-conquer...Ch. 22.8 - Prob. 22.8.3CPCh. 22.9 - Prob. 22.9.1CPCh. 22.9 - Prob. 22.9.2CPCh. 22.10 - Prob. 22.10.1CPCh. 22.10 - Prob. 22.10.2CPCh. 22.10 - Prob. 22.10.3CPCh. 22 - Program to display maximum consecutive...Ch. 22 - (Maximum increasingly ordered subsequence) Write a...Ch. 22 - (Pattern matching) Write an 0(n) time program that...Ch. 22 - (Pattern matching) Write a program that prompts...Ch. 22 - (Same-number subsequence) Write an O(n) time...Ch. 22 - (Execution time for GCD) Write a program that...Ch. 22 - (Geometry: gift-wrapping algorithm for finding a...Ch. 22 - (Geometry: Grahams algorithm for finding a convex...Ch. 22 - Prob. 22.13PECh. 22 - (Execution time for prime numbers) Write a program...Ch. 22 - (Geometry: noncrossed polygon) Write a program...Ch. 22 - (Linear search animation) Write a program that...Ch. 22 - (Binary search animation) Write a program that...Ch. 22 - (Find the smallest number) Write a method that...Ch. 22 - (Game: Sudoku) Revise Programming Exercise 22.21...Ch. 22 - (Bin packing with smallest object first) The bin...Ch. 22 - Prob. 22.27PE
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
File Encryption Filter File encryption is the science of writing the contents of a file in a secret code. Your ...
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
When you pass an object that is an instance of a class as an argument, what is passed into the parameter variab...
Starting out with Visual C# (4th Edition)
If a logic gate operates on a dc supply voltage of +5V and draws an average current of 4mA , what is its power ...
Digital Fundamentals (11th Edition)
Using FilesSavings Account Balance Modification Modify the Savings Account Balance program described in Program...
Starting Out with C++: Early Objects
What type of event happens when the user presses and releases a key that produces a Unicode character?
Starting Out with Java: Early Objects (6th Edition)
Simplify the following program segment while (X != 5): X = 5
Computer Science: An Overview (12th 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
- Q1: Write a program to accomplish the following tasks:- a) Write a method to print the ArrayList in the reverse order b) Write a method to sort the ArrayList, and display the data after sorting c) Write a method to print the largest and the smallest element in the ArrayList d) In the main method ask user to enter 10 integers, store them in the ArrayList, pass the ArrayList to above methods, and then display the resultarrow_forwardRewrite the client program to use the Baby class that you have done using ArrayList. You should also have the following function in this new client program: a) Enter details for each baby (name and age) and thus populate the Baby ArrayList b) Calculate and display the average age of all babies in the ArrayList c) Ask the user to enter the name of a baby, and then remove it from the ArrayList d) Allow the user to add new baby information in the ArrayList e) Output the details of each baby from the ArrayList (name and age) Compare this client program using the ArrayList with the client program you have done using array, comment on the differences between the two. Modify your client program in the last question, by adding a sort function such that when that option is selected, it sorts the ArrayList using the baby names in alphabetical order and output the details in the sorted ArrayList to a CSV (sortedbabylist.csv) file. public class Baby { private String name; private int age;…arrow_forward8. Grade Book A teacher has five students who have taken four tests. The teacher uses the following grading scale to assign a letter grade to a student, based on the average of his or her four test scores: Test Score Letter Grade 90–100 A 80-89 B 70-79 C 60-69 D 0-59 Write a class that uses a String array or an ArrayList object to hold the five students' names, an array of five characters to hold the five students' letter grades, and five arrays of four doubles each to hold each student's set of test scores. The class should have methods that return a specific student's name, the average test score, and a letter grade based on the average. Demonstrate the class in a program that allows the user to enter each student's name and his or her four test scores. It should then display each student's average test score and letter grade. Input Validation: Do not accept test scores less than zero or greater than 100.arrow_forward
- Treasure Hunter description You are in front of a cave that has treasures. The cave canrepresented in a grid which has rows numbered from 1to , and of the columns numbered from 1 to . For this problem, define (?, )is the tile that is in the -th row and -column.There is a character in each tile, which indicates the type of that tile.Tiles can be floors, walls, or treasures that are sequentially representedwith the characters '.' (period), '#' (hashmark), and '*' (asterisk). You can passfloor and treasure tiles, but can't get past wall tiles.Initially, you are in a tile (??, ). You want to visit all the treasure squares, andtake the treasure. If you visit the treasure chest, then treasurewill be instantly taken, then the tile turns into a floor.In a move, if you are in a tile (?, ), then you can move tosquares immediately above (? 1, ), right (?, + 1), bottom (? + 1, ), and left (?, 1) of thecurrent plot. The tile you visit must not be off the grid, and must not be awall patch.Determine…arrow_forward2. Lottery Number Generator Design a program that generates a 7-digit lottery number. The program should have an Integer array with 7 elements. Write a loop that steps through the array, ran- domly generating a number in the range of 0 through 9 for each element. (Use the random function that was discussed in Chapter 6.) Then write another loop that displays the contents of the array.arrow_forwardT/F 3) A Java main method uses the parameter (String[ ] variable) so that a user can run the program and supply“command-line” parameters. Since the parameter is a String array, however, the user does not have to supply anyparameters.arrow_forward
- C++ c++ write a hangman game that randomly generates a word and prompts the user to guess one letter at a time, as shown in the sample run. Each letter in the word is displayed as asterisk. when the user makes a correct guess, the actual letter is then displayed. When the user finishes a word, display the number of misses and ask the user whether to continue to play with another word. Declare an array to store word as follow: Store 20 different words in a text file, read them into an array. Randomly pick a number 1..20 and use this word for the current round.arrow_forwardRainfall StatisticsWrite a program that lets the user enter the total rainfall for each of 12 months (starting with January) into an array of doubles. The program should calculate and display (in this order): the total rainfall for the year, the average monthly rainfall, and the months with the highest and lowest amounts. Months should be expressed as English names for months in the Gregorian calendar, i.e.: January, February, March, April, May, June, July, August, September, October, November, December. Input Validation: Do not accept negative numbers for monthly rainfall figures. When a negative value is entered, the program outputs "invalid data (negative rainfall) -- retry" and attempts to reread the value. NOTE: Decimal values should be displayed using default precision, i.e. do not specify precision.arrow_forwardJAVA PROGRAM: Monkey Business A local zoo wants to keep track of how many pounds of food each of its three monkeys eats each day during a typical week. Write a program that stores this information in a two-dimensional 3 × 5 array, where each row represents a different monkey and each column represents a different day of the week. The program should first have the user input the data for each monkey, or use constant values rather than asking user for input. Then it should create a report that includes the following information: Display 3X5 array first. Average amount of food eaten per day by the whole family of The least amount of food eaten during the week by any one The greatest amount of food eaten during the week by any one Input Validation: Do not accept negative numbers for pounds of food eaten.arrow_forward
- Q1: Write a program to accomplish the following tasks:- a) Write a method to print the ArrayList in the reverse orderb) Write a method to sort the ArrayList, and display the data after sortingc) Write a method to print the largest and the smallest element in the ArrayListd) In the main method ask user to enter 10 integers, store them in the ArrayList, pass the ArrayList to above methods, and then display the result after each call.arrow_forwardplease code in python Forbidden concepts: arrays/lists (data structures), recursion, custom classes You have been asked to take a small icon that appears on the screen of a smart telephone and scale it up so it looks bigger on a regular computer screen.The icon will be encoded as characters (x and *) in a 3 x 3 grid as follows: (refer image1 ) Write a program that accepts a positive integer scaling factor and outputs the scaled icon. A scaling factor of k means that each character is replaced by a k X k grid consisting only of that character. Input Specification:The input will be an integer such that 0 < k ≤ 10. Output Specification:The output will be 3k lines, which represent each individual line scaled by a factor of k and repeated k times. A line is scaled by a factor of k by replacing each character in the line with k copies of the character. [refer image2]arrow_forwardpart a- 2point) for 3 students find the average of a student by asking him how many grades do you have. The answer to this question, determine the size of the array(list of grades) and then ask the user to enter grades(the number of the grades is equal to the size of the array) then calculate the average for each student. Hence, you will calculate 3 averages. to calculate the average, use the array accumulator. Also when you get each grade validate it. validation for grade means that you check whether a grade is between 0 and 100. if the grade is negative or a grade is more than 100 then it is not valid and you have to ask the user to enter a grade again. Part b- 1 point) Find the maximum and minimum grades for each student. Part c- 1 point) Print the sorted list of the grades for each student. example: if grades user entered are: 60 78 98 23 45 then sorted list is:23 45 60 78 98 (Array not vector)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
1.1 Arrays in Data Structure | Declaration, Initialization, Memory representation; Author: Jenny's lectures CS/IT NET&JRF;https://www.youtube.com/watch?v=AT14lCXuMKI;License: Standard YouTube License, CC-BY
Definition of Array; Author: Neso Academy;https://www.youtube.com/watch?v=55l-aZ7_F24;License: Standard Youtube License