Data Structures and Algorithms in Java
6th Edition
ISBN: 9781118771334
Author: Michael T. Goodrich
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1, Problem 29P
The birthday paradox says that the probability that two people in a room will have the same birthday is more than half, provided n, the number of people in the room, is more than 23. This property is not really a paradox, but many people find it surprising. Design a Java program that can test this paradox by a series of experiments on randomly generated birthdays, which test this paradox for n = 5, 10, 15, 20, …, 100.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The birthday paradox says that the probability that two people in a room will have the same birthday is more than
half, provided n, the number of people in the room, is more than 23. This property is not really a paradox, but many
people find it surprising. Design a Java program that can test this paradox by a series of experiments on randomly
generated birthdays, which test this paradox for n = 5, 10, 15, 20, ..., 100.
The birthday paradox says that the probability that two people in a room will have the same birthday is more than half, provided n, the number of people in the room, is more than 23. This property is not really a paradox, but many people find it surprising. Design a Java program that can test this paradox by a series of experiments on randomly generated birthdays, which test this paradox for n = 5, 10, 15, 20,..., 100. Be sure to make your output the same as the output below, use Scanner, # of students, # of trials wanted to run, if you want to see all the matching trials (yes or no), the theoretical probability of a match, found matches, actual percentage, and if you want to run another trial (yes or no).
This image is an example of the output:
RandomWalker.java
A drone begins flying aimlessly, starting at Nassau Hall (0, 0). At each time step, the drone flies one meter in a random direction, either north, east, south, or west, with probability 25%. How far will the drone be from Nassau Hall after n steps? This process is known as a two-dimensional random walk.
Write a program RandomWalker.java that takes an integer command-line argument n and simulates the motion of a random walk for n steps. Print the location at each step (including the starting point), treating the starting point as the origin (0, 0). Also, print the square of the final Euclidean distance from the origin.
Chapter 1 Solutions
Data Structures and Algorithms in Java
Ch. 1 - Prob. 1RCh. 1 - Suppose that we create an array A of GameEntry...Ch. 1 - Write a short Java method, isMultiple, that takes...Ch. 1 - Write a short Java method, isEven, that takes an...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that counts the number...Ch. 1 - Prob. 9RCh. 1 - Prob. 10R
Ch. 1 - Modify the CreditCard class from Code Fragment 1.5...Ch. 1 - Prob. 12RCh. 1 - Modify the declaration of the first for loop in...Ch. 1 - Prob. 14CCh. 1 - Write a pseudocode description of a method for...Ch. 1 - Write a short program that takes as input three...Ch. 1 - Write a short Java method that takes an array of...Ch. 1 - Prob. 18CCh. 1 - Write a Java program that can take a positive...Ch. 1 - Write a Java method that takes an array of float...Ch. 1 - Write a Java method that takes an array containing...Ch. 1 - Prob. 22CCh. 1 - Write a short Java program that takes two arrays a...Ch. 1 - Modify the CreditCard class from Code Fragment 1.5...Ch. 1 - Modify the CreditCard class to add a toString()...Ch. 1 - Write a short Java program that takes all the...Ch. 1 - Write a Java program that can simulate a simple...Ch. 1 - A common punishment for school children is to...Ch. 1 - The birthday paradox says that the probability...Ch. 1 - (For those who know Java graphical user interface...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Repeat Exercise 13, but use a multibranch if-else statement instead of a switch statement.
Java: An Introduction to Problem Solving and Programming (7th Edition)
Unique Words Write a program that opens a specified text file then displays a list of all the unique words foun...
Starting Out with Python (3rd Edition)
Why might doctors and nutritionists be interested in a device like DietSensor?
Using MIS (10th Edition)
What does the following program print? 1. // Exercise 4.16: Mystery.java 2. public class Mystery { 3. public st...
Java How To Program (Early Objects)
If a process in a multiprogramming system could access memory cells outside its allotted area, how could it gai...
Computer Science: An Overview (12th Edition)
What role does the symbol table play in a compiler?
Concepts of Programming Languages (11th 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
- Design a java program that simulates a checkout line at a supermarket. The line is a queue object. Customers (i.e., customer objects) arrive in random integer intervals of from 1 to 4 minutes. Also, each customer is serviced in random integer intervals of from 1 to 4 minutes. Obviously, the rates need to be balanced. If the average arrival rate is larger than the average service rate, the queue will grow infinitely. Even with “balanced” rates, randomness can still cause long lines. Run the supermarket simulation for a 12-hour day (720 minutes), using the following algorithm: Choose a random integer between 1 and 4 to determine the minute at which the first customer arrives .At the first customer’s arrival time, do the following: Determine customer’s service time (random integer from 1 to 4). Begin servicing the customer. Schedule the arrival time of the next customer (random integer 1 to 4 added to the current time). For each minute of the day, consider the following: If the next…arrow_forwardCoupon collector is a classic statistic problem with many practical applications. The problem is to pick objects from a set of objects repeatedly and determine how many picks are needed for all the objects to be picked at least once. A variation of the problem is to pick cards from a shuffled deck of 52 cards repeatedly and find out how many picks are needed before you see one of each suit. Assume a picked card is placed back in the deck before picking another. Write a program to simulate the number of picks needed to get four cards from each suit and display the four cards picked (it is possible that a card may be picked twice).arrow_forwardJava Only Solution: John's barn has a fence consisting of N consecutive sections numbered from left to right from 1 to N. Each part is first painted in one of two colors: red or green, your information is given with string C. The color of the I-th part Ci will be equal to 'R' if the color of the part is red and 'G' if it is green. John decided to paint the whole fence green. To make the normal drawing process more fun he decided to do it using the following process. Every minute (until the whole fence is painted green) you will do the following steps: Select any part of the phone that is painted red. Let's show the index of this section as X. In each section with references X, X + 1, ..., min (N, X + K - 1), flip the color of the corresponding part from red to green and from green to red by re-painting. John wonders how quickly he can paint the phone. Please help her find the minimum number of minutes needed to repaint. Input: 1 73 RGGRGRG Output: 4arrow_forward
- In Python, Solve the locker riddle which reads as follows:Imagine 100 lockers numbered 1 to 100 with 100 students lined up in front of those 100lockers:The first student opens every locker.The second student closes every 2nd locker.The 3rd student changes every 3rd locker; if it’s closed, she opens it; if it’s open, she closes it.The 4th student changes every fourth locker (e.g., 4th, 8th, etc.).The 5th student changes every 5th locker (e.g., 5th, 10th, etc.).That same pattern continues for all 100 students. Which lockers are left open after all 100 students have walked the rowof lockers?arrow_forwardSolved in Java Write a method maxMagnitude() with two integer input parameters that returns the largest magnitude value. Use the method in a program that takes two integer inputs, and outputs the largest magnitude value. Ex: If the inputs are: 5 7 the method returns: 7 Ex: If the inputs are: -8 -2 the method returns: -8 Note: The method does not just return the largest value, which for -8 -2 would be -2. Though not necessary, you may use the absolute-value built-in math method. Your program must define and call a method:public static int maxMagnitude(int userVal1, int userVal2) import java.util.Scanner; public class LabProgram { /* Define your method here */ public static void main(String[] args)…arrow_forwardJava Code Dreamworld is known for his uniqueness and there are 2 different denomination coins in Dreamworld, 1-cent coins and 2 cents coins. They have two faces - heads and tails. Your job is to find a number of ways to make a line order for these coins using the so that their total value is N cents. The only condition in line planning is that the first coin in the plan should have heads at the top. All other coins can have tails or heads at the top. Take N = 2 as an example. Possible arrangements are (1H, 1H), (2H), (1H, 1T), where H is primary and T is the tail. So, there are 3 possible plans that cost 2 cents. Input: 1 3 Output: 8 00arrow_forward
- Write a program that draws a square fractal. Fractals are images that keep repeating their own image in ever-smaller versions. There exists numerous fractals and some fractals rely on computation of advanced mathematics. All fractals have a recursive quality and provide an ideal platform for practicing recursive concepts. You will note that from the four corners of the center rectangle, smaller rectangles are drawn and each rectangle in turn continues to draw three smaller rectangles until the rectangle is the size of one pixel. A CODE TEMPLATE & PICTURE OF OUTPUT IS ALREADY PROVIDED IN THE ATTACHED PICTURES Method drawSquare1 gets the ball rolling and draws a solid rectangle in the center of the screen. The initial rectangle needs to be 1/4 the size of the monitor. This explains why it is important to know the screen resolution and why this information is passed by parameter. Method drawSquare1 needs to make four method calls to draw each one of the four rectangles attached to…arrow_forwardWrite a program that draws a square fractal. Fractals are images that keep repeating their own image in ever-smaller versions. There exists numerous fractals and some fractals rely on computation of advanced mathematics. All fractals have a recursive quality and provide an ideal platform for practicing recursive concepts. You will note that from the four corners of the center rectangle, smaller rectangles are drawn and each rectangle in turn continues to draw three smaller rectangles until the rectangle is the size of one pixel.arrow_forwardA random walk is a random path most often represented as a random number that changes over time. In particular, one common random walk is that in which the starting state is 0 and in each iteration we either add 1 or subtract 1 from the current value with equal probability. That is, in the first step, the next value would be 1 with probability 0.5 and -1 with probability 0.5. Use R to generate a random walk with 100 values starting at value 0 and store the values in a vector called random_walk. This vector should have length 100.arrow_forward
- An isolated hydrogen atom emits a photon of x eV. Your task is to find the momentum of photon emitted after taking x from user in javaarrow_forwardIn Java, Consider a crime wave during two criminals simultaneously commit crimes while two detectives simultaneously solve the crimes. A crime has an integer seriousness level between 0 (creating a public nuisance) and 4 (murder). Criminals commit crimes with random seriousness and wait a random amount of time between 0 and 100 milliseconds between crimes. Each criminal commits 50 crimes and then retires to live from the loot. Detectives solve the most serious crimes first, resting for 60 milliseconds after solving each crime. The application continuesrunning until both the criminals have retired (ie, the two threads containing the criminal Runnables haveterminated) and all the crimes have been solved. Here are the first few lines of output from a sample run of the program: c1 commits a crime of seriousness 1d1 solves a crime of seriousness 1c1 commits a crime of seriousness 4d2 solves a crime of seriousness 4c2 commits a crime of seriousness 0c2 commits a crime of seriousness 0…arrow_forwardWrite a code in Java Programming Your task is to simulate a coffee shop using the observer pattern (do not use the deprecate one). The coffee shop serves two types of coffee: espresso and cappuccino. The shop has two baristas, EspressoBarista and CappuccinoBarista. EspressoBarista generates random espresso orders between 1 and 3 every 2 seconds, while CappuccinoBarista generates random cappuccino orders between 1 and 3 every 3 seconds. The UML design diagram is shown below. Property ChangeListenerfac Observablenerfacto Coffeeshop HashMap Sting, integer> ingredients ExpresssCartate The CoffeeShop class holds the current stock of ingredients and the CoffeeShop constructor initializes the count for each ingredient. The required ingredients for each type of coffee are as follows: • Espresso: 1 shot of espresso, 1 ounce of milk Cappuccino: 1 shot of espresso, 2 ounces of milk, 1 ounce of foam If an order cannot be fulfilled because there are not enough ingredients, a warning message…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
Java random numbers; Author: Bro code;https://www.youtube.com/watch?v=VMZLPl16P5c;License: Standard YouTube License, CC-BY