Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 4, Problem 32RE
In a travel simulation, Harry will visit one of his friends that are located in three states. He has ten friends in California, three in Nevada, and two in Utah. How do you produce a random number between 1 and 3, denoting the destination state, with a probability that is proportional to the number of friends in each state?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You are hired by a game design company and one of their most popular games is
The Journey. The game has a ton of quests, and for a player to win, the player must finish all the quests.
There are a total of N quests in the game. Here is how the game works: the player
can arbitrarily pick one of the N quests to start from. Once the player completes a quest, they unlock some other quests. The player can then choose one of the unlocked quests and complete it, and so on.
For instance, let’s say that this game had only 4 quests: A, B, C, and D. Let’s say that after you complete
• quest A, you unlock quests [B, D].
• quest B, you unlock quests [C, D].
• quest C, you unlock nothing [ ].
• quest D, you unlock quest [C].
Is this game winnable? Yes, because of the following scenario:
The player picks quest A to start with. At the end of the quest A, the unlocked list
contains [B, D]. Say that player chooses to do quest B, then the…
with T=4, n=12 and A=(3,5,8,8,9,16,29,41,50,63,64,67). Draw the corresponding walkthrough as shown
Using Dart.
Create a program that will play the “cows and bulls” game with the user. The game works like this: Randomly generate a 4-digit number. Ask the user to guess a 4-digit number. For every digit the user guessed correctly in the correct place, they have a “cow”. For every digit the user guessed correctly in the wrong place is a “bull.” Every time the user makes a guess, tell them how many “cows” and “bulls” they have. Once the user guesses the correct number, the game is over. Keep track of the number of guesses the user makes throughout the game and tell the user at the end.
Chapter 4 Solutions
Big Java Late Objects
Ch. 4.1 - How many years does it take for the investment to...Ch. 4.1 - If the interest rate is 10 percent per year, how...Ch. 4.1 - Modify the program so that the balance after each...Ch. 4.1 - Suppose we change the program so that the...Ch. 4.1 - What does the following loop print? int n = 1;...Ch. 4.2 - Hand-trace the following code, showing the value...Ch. 4.2 - Hand-trace the following code, showing the value...Ch. 4.2 - Hand-trace the following code, assuming that a is...Ch. 4.2 - Trace the following code. What error do you...Ch. 4.2 - Prob. 10SC
Ch. 4.3 - Write the for loop of the InvestmentTable.java...Ch. 4.3 - How many numbers does this loop print? for (int n...Ch. 4.3 - Write a for loop that prints all even numbers...Ch. 4.3 - Write a for loop that computes the sum of the...Ch. 4.3 - How would you modify the for loop of the...Ch. 4.4 - Prob. 16SCCh. 4.4 - Rewrite the input check do loop using a while loop...Ch. 4.4 - Suppose Java didnt have a do loop. Could you...Ch. 4.4 - Write a do loop that reads integers and computes...Ch. 4.4 - Write a do loop that reads integers and computes...Ch. 4.5 - What does the SentinelDemo.java program print when...Ch. 4.5 - Why does the SentinelDemo.java program have to...Ch. 4.5 - What would happen if the declaration of the salary...Ch. 4.5 - In the last example of this section, we prompt the...Ch. 4.5 - Prob. 25SCCh. 4.6 - Prob. 26SCCh. 4.6 - Google has a simple interface for converting...Ch. 4.6 - Consider a modification of the program in Self...Ch. 4.6 - Prob. 29SCCh. 4.6 - Produce a storyboard for a program that compares...Ch. 4.7 - What total is computed when no user input is...Ch. 4.7 - Prob. 32SCCh. 4.7 - What are the values of position and ch when no...Ch. 4.7 - Prob. 34SCCh. 4.7 - Prob. 35SCCh. 4.7 - Prob. 36SCCh. 4.8 - Why is there a statement System.out.println(); in...Ch. 4.8 - How would you change the program to display all...Ch. 4.8 - Prob. 39SCCh. 4.8 - What do the following nested loops display? for...Ch. 4.8 - Prob. 41SCCh. 4.9 - Prob. 42SCCh. 4.9 - You need to write a program for DNA analysis that...Ch. 4.9 - Prob. 44SCCh. 4.9 - Consider the task of finding numbers in a string....Ch. 4.10 - How do you simulate a coin toss with the...Ch. 4.10 - How do you simulate the picking of a random...Ch. 4.10 - Why does the loop body in Dice.java call...Ch. 4.10 - Prob. 49SCCh. 4.10 - Prob. 50SCCh. 4 - Given the variables String stars = ""; String...Ch. 4 - What do these loops print? a. int i = 0; int j =...Ch. 4 - What do these code snippets print? a. int result =...Ch. 4 - Write awhile loop that prints a. All squares less...Ch. 4 - Write a loop that computes a. The sum of all even...Ch. 4 - Provide trace tables for these loops. a. int i =...Ch. 4 - What do these loops print? a. for (int i = 1; i ...Ch. 4 - What is an infinite loop? On your computer, how...Ch. 4 - Write a program trace for the pseudocode in...Ch. 4 - What is an off-by-one error? Give an example from...Ch. 4 - What is a sentinel value? Give a simple rule when...Ch. 4 - Which loop statements does Java support? Give...Ch. 4 - How many iterations do the following loops carry...Ch. 4 - Write pseudocode for a program that prints a...Ch. 4 - Prob. 15RECh. 4 - Write pseudocode for a program that reads a...Ch. 4 - Write pseudocode for a program that reads a...Ch. 4 - Rewrite the following for loop into a while loop....Ch. 4 - Rewrite the following do loop into a while loop....Ch. 4 - Provide trace tables of the following loops. a....Ch. 4 - What do the following loops print? Work out the...Ch. 4 - What do the following program segments print? Find...Ch. 4 - Prob. 23RECh. 4 - Add a storyboard panel for the conversion program...Ch. 4 - In Section 4.6, we decided to show users a list of...Ch. 4 - Change the storyboards in Section 4.6 to support a...Ch. 4 - Draw a flowchart for a program that carries out...Ch. 4 - In Section 4.7.5, the code for finding the largest...Ch. 4 - What are nested loops? Give an example where a...Ch. 4 - The nested loops for (int 1 = 1; 1 = height; i++)...Ch. 4 - Suppose you design an educational game to teach...Ch. 4 - In a travel simulation, Harry will visit one of...Ch. 4 - Write programs with loops that compute a. The sum...Ch. 4 - Write programs that read a sequence of integer...Ch. 4 - Write programs that read a line of input as a...Ch. 4 - Complete the program in How To 4.1 on page 171....Ch. 4 - Write a program that reads a set of floating-point...Ch. 4 - Translate the following pseudocode for finding the...Ch. 4 - Translate the following pseudocode for randomly...Ch. 4 - Write a program that reads a word and prints each...Ch. 4 - Write a program that reads a word and prints the...Ch. 4 - Write a program that reads a word and prints the...Ch. 4 - Write a program that reads a word and prints the...Ch. 4 - Write a program that reads a word and prints all...Ch. 4 - Write a program that reads a string and prints the...Ch. 4 - Write a program that reads a sequence of words and...Ch. 4 - Write a program that prints all powers of 2 from...Ch. 4 - Write a program that reads a number and prints all...Ch. 4 - Prob. 18PECh. 4 - Write a program that reads an integer and...Ch. 4 - Write a program that reads an integer and...Ch. 4 - Write a program to plot the following face.Ch. 4 - Write a graphical application that displays a...Ch. 4 - Enhance Worked Example 4.1 to check that the...Ch. 4 - Mean and standard deviation. Write a program that...Ch. 4 - The Fibonacci numbers are defined by the sequence...Ch. 4 - Factoring of integers. Write a program that asks...Ch. 4 - Prime numbers. Write a program that prompts the...Ch. 4 - The game of Nim. This is a well-known game with a...Ch. 4 - The Drunkards Walk. A drunkard in a grid of...Ch. 4 - The Monty Hall Paradox. Marilyn vos Savant...Ch. 4 - A simple random generator is obtained by the...Ch. 4 - The Buffon Needle Experiment. The following...Ch. 4 - In the 17th century, the discipline of probability...Ch. 4 - Write a program that reads an initial investment...Ch. 4 - Currency conversion. Write a program that first...Ch. 4 - Write a program that first asks the user to type...Ch. 4 - Your company has shares of stock it would like to...Ch. 4 - Write an application to pre-sell a limited number...Ch. 4 - You need to control the number of people who can...Ch. 4 - Credit Card Number Check. The last digit of a...Ch. 4 - In a predator-prey simulation, you compute the...Ch. 4 - Projectile flight. Suppose a cannonball is...Ch. 4 - Radioactive decay of radioactive materials can be...Ch. 4 - The photo at left shows an electric device called...Ch. 4 - Write a graphical application that draws a spiral,...Ch. 4 - Prob. 28PPCh. 4 - Draw a picture of the four-leaved rose whose...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
When displaying a Java applet, the browser invokes the _____ to interpret the bytecode into the appropriate mac...
Web Development and Design Foundations with HTML5 (8th Edition)
Modify the Product_T table by adding an attribute QtyOnHand that can be used to track the finished goods invent...
Modern Database Management (12th Edition)
5.5 Describe the four basic elements of counter-controlled iteration.
C++ How to Program (10th Edition)
State whether each of the following is true or false. If false, explain why. The default case is required in th...
Java How To Program (Early Objects)
In this section, we discussed superclasses and subclasses. Which is the general class, and which is the special...
Starting Out with Python (4th Edition)
Write a program to print the corresponding Celsius to Fahrenheit table.
C Programming Language
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
- A school has been selling raffle tickets to raise funds for the school library. Each ticket is sold for $5,and the school has sold many such tickets. Each ticket has a code. When a ticket is presented at thelibrary book sale, it can be redeemed for $1, $5, or $10. The dollar amount being assigned to each ticketis determined by a lottery before the book sale. Heidi is wondering whether the school is actually losing money out of the raffle.(a) Formulate the null and alternative hypotheses that can be used to determine whether the school islosing money out of the raffle. Note that the issue is whether the school is losing money, not whetherthe school is breaking even. Please think about what the implication is when formulating the null andalternative hypothesesarrow_forwardIn a Chess match "a + b", each player has a clock which shows a minutes at the start and whenever a player makes a move, b seconds are added to this player's clock. Time on a player's clock decreases during that player's turns and remains unchanged during the other player's turns. If the time on some player's clock hits zero (but not only in this case), this player loses the game. N+1 There's a 3 + 2 blitz chess match. After N turns (i.e. moves made by 2 N white and moves made by black), the game ends and the clocks of the two 2 players stop; they show that the players (white and black) have A and B seconds left respectively. Note that after the N-th turn, b = 2 seconds are still added to the clock of the player that made the last move and then the game ends. Find the total duration of the game, i.e. the number of seconds that have elapsed from the start of the game until the end.arrow_forwardA square is divided into four smaller regions as shown below in (a). If you throw a dart into the square 1,000,000 times, what is the probability for a dart to fall into an odd-numbered region? Write a program to simulate the process and display the result.arrow_forward
- You are given an instance of a problem where you have an n x n grid of squares. Each square can be unpainted or can have a hole, so you cannot go on the square with a hole. The objective is to paint all the squares that do not have a hole. You start in the square (0,0) which is unpainted. The actions you can do are: (1) paint the square you are on if it is not painted; (2) move, either vertically or horizontally, to an adjacent square inside the grid that is not painted and does not have a hole. a. Describe a state-space representation for the problem, specifying the state representation, the initial state, the goal condition, and the actions. b. Is the state space finite? Is it a tree or a graph? c. Propose a heuristic for the problem. Is your heuristics admissible or not? Explain briefly your answerarrow_forwardA robot is initially located at position (0, 0) in a grid [−5, 5] × [−5, 5]. The robot can move randomly in any of the directions: up, down, left, right. The robot can only move one step at a time. For each move, print the direction of the move and the current position of the robot. If the robot makes a circle, which means it moves back to the original place, print “Back to the origin!” to the console and stop the program. If it reaches the boundary of the grid, print “Hit the boundary!” to the console and stop the program. A successful run of your code may look like: Down (0,-1) Down (0,-2) Up (0,-1) Left (-1,-1) Left (-2,-1) Up (-2,0) Left (-3,0) Left (-4,0) Left (-5,0) Hit the boundary! or Left (-1,0) Down (-1,-1) Right (0,-1) Up (0,0) Back to the origin! Instructions: This program is to give you practice using the control flow, the random number generator, and output formatting. You may not use stdafx.h. Include header comments. Include <iomanip> to format your output. Name…arrow_forwardThis challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the siden of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Examples FIRST MOVE snakefill (3) snakefill (6) - 5 snakefill (24) → 9 3arrow_forward
- The Monty Hall Cash game costs $12 to play. Once you pay, you have a choice of three doors. Behind one door is $20, behind the other two is absolutely nothing (i.e. $0). You pick a door, say number 1, and the host running the game, who knows what’s behind the doors, opens another door, say number 3, which has absolutely nothing. He says to you, “Do you want to switch to door number 2?”. You can decide to switch doors, or stay with your initial choice. You “win” whatever is behind the door you end up choosing. Use a python Jupyter notebook to run simulations of the game to estimate/approximate the expected value of the game if you always switch, and the expected value if you always stay. OR: Prove that the expected value of this game is greatest when you always switch. Include a full mathematical explanation of all probabilities (no “hand waiving”!) and include any references or sources.arrow_forward6 11 12 13 8 9 points = [10, 7, 4, 1] scores=0 15 16 17 18 19 20 21 22 23 29 38 31 32 33 34 35 36 37 38 39 40 41 This project is a fun game that generates a random number in a certain specified range and the user must guess the number after receiving hints. Every time a user's guess is wrong they are prompted with more hints to make it easier at the cost of reducing the score. from random import randint 44 45 24 25 26 27 def guessNumber(): 28 def generateNumber(): 51 52 53 54 55 56 57 return randint (10, 20) def generateHint (secretNumber, userGuess, rounds): if rounds == 0: hint = "The number is between 10 and 20" elif rounds == 1: hint= "The number is a even number" if secretNumber % 2 == 0 else "The number is an odd number" else: hint = "The number is lesser" if userGuess > secretNumber else "The number is greater" return hint secretNumber = generateNumber() for eachRound in range(0, 4): user Input = int(input("Enter your guess: ")) if userInput == secretNumber: print("Hurray! You…arrow_forwardA square is divided into four smaller regions as shown in (a). If you throw a dart into the square one million times, what is the probability for the dart to fall into an odd-numbered region? Write a program to simulate the process and display the result.arrow_forward
- This challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING FIRST MOVE In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the side n of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Ctrl+Enarrow_forwardWrite a program that plays the tic-tac-toe game. Two players take turns clicking an available cell in a grid with their respective tokens (either X or O). When one player has placed three tokens in a horizontal, vertical,or diagonal row on the grid, the game is over and that player has won. A draw (no winner) occurs when all the cells in the grid have been filled with tokens and neither player has achieved a win. Figure 12.17 shows the representative sample runs of the example. Assume that all the cells are initially empty, and that the first player takes the X token and the second player the O token. To mark a cell, the player points the mouse to the cell and clicks it. If the cell is empty, the token (X or O) is displayed. If the cell is already filled, the player’s action is ignored.Define a custom class named Cell that extends Label for displaying a token and for responding to the button-click event. The class contains a data field token with three possible values—' ', X, and…arrow_forwardCorrect answer will be upvoted else downvoted. Computer science. You have w white dominoes (2×1 tiles, the two cells are hued in white) and b dark dominoes (2×1 tiles, the two cells are shaded in dark). You can put a white domino on the board in case both board's cells are white and not involved by some other domino. Similarly, you can put a dark domino if the two cells are dark and not involved by some other domino. Would you be able to put all w+b dominoes on the board if you can put dominoes both on a level plane and in an upward direction? Input The main line contains a solitary integer t (1≤t≤3000) — the number of experiments. The primary line of each experiment contains three integers n, k1 and k2 (1≤n≤1000; 0≤k1,k2≤n). The second line of each experiment contains two integers w and b (0≤w,b≤n). Output For each experiment, print YES in case it's feasible to put all w+b dominoes on the board and negative, in any case. You might print each letter…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 EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable 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
Java random numbers; Author: Bro code;https://www.youtube.com/watch?v=VMZLPl16P5c;License: Standard YouTube License, CC-BY