STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 5.12, Problem 5.28CP
Explanation of Solution
File access methods:
The data contents that are present in a file can be accessed in the following two ways:
- Sequential access
- Random access or direct access.
Difference between Sequential access and Random access:
| Sequential access | Random access |
| In sequential access method, the contents of the file are accessed from the beginning to the end. | In random access or direct access method, the content of the file are accessed directly. |
| The contents of the file can be read only in order; skipping contents between files is not possible... |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A common memory matching game played by young children is to start with a deck of cards that contain identical pairs. For example, given six cards in the deck, two might be labeled 1, two labeled 2, and two labeled 3. The cards are shuffled and placed face down on the table. A player then selects two cards that are face down, turns them face up, and if the cards match, they are left face up. If the two cards do not match, they are returned to their original face down position. The game continues until all cards are face up. Write a program that plays the memory matching game. Use 16 cards that are laid out in a 4 4 square and are labeled with pairs of numbers from 1 to 8. Your program should allow the player to specify the cards that he or she would like to select through a coordinate system. For example, in the following layout: 1 2 3 4 1 8 * * * 2 * * * * 3 * 8 * * 4 * * * * all of the face down cards are indicated by *. The pairs of 8 that are face up are at coordinates (1,1) and…
IN C++:
Semaphores are used to mediate access to computer resources.
Your task is to write a program that uses semaphores to simulate mediated access to three computer resources:
5 printers
6 plotters
4 scanners
Your program shall:
Declare and initialize the semaphores with the appropriate values.
Create a routine that loops through a sequence 4 times. In each iteration the process
forks a child process.The child process:
uses a random number generator (1-3) to determine which resource it will request
uses native semaphore function or one that you create to request the appropriate resource
Print the process’ PID and the requested resource type
Print the process’ PID and the success/failure of the request
if the resource is available - sleep for a random time between 1-3 seconds and then release the resource using appropriate the semaphore function
if the resource is not available – sleep for a random between 2-4 seconds and repeat the request (go to step ii).
Terminate
Sleeps…
Turtle Hare Race - Multithreading
Use Java multithreading to implement the turtle hare race program. You are not allowed to use Timer events. Your program should have one thread for turtle, one thread for hare, and one dedicated thread for periodic painting.
Chapter 5 Solutions
STARTING OUT WITH C++ MPL
Ch. 5.1 - How many lines will each of the following while...Ch. 5.1 - Prob. 5.2CPCh. 5.3 - What will each of the following program segments...Ch. 5.6 - In the following program segment, which variable...Ch. 5.6 - Find four errors in the following code that is...Ch. 5.6 - Write a sentinel-controlled while loop that...Ch. 5.7 - Prob. 5.7CPCh. 5.7 - Write a program segment with a do-while loop that...Ch. 5.7 - Revise your answer to Question 5.8 to use the...Ch. 5.8 - What three expressions appear inside the...
Ch. 5.8 - You want to write a for loop that displays I love...Ch. 5.8 - Prob. 5.12CPCh. 5.8 - Write a for loop that displays your name 10 times.Ch. 5.8 - Write a for loop that displays all of the odd...Ch. 5.8 - Write a for loop that displays every fifth number,...Ch. 5.8 - Write a for loop that sums up the squares of the...Ch. 5.8 - Write a for loop that sums up the squares of the...Ch. 5.8 - Write a for loop that repeats seven times, asking...Ch. 5.8 - Write a for loop that calculates the total of the...Ch. 5.11 - Which loop (while, do-while, or for) is best to...Ch. 5.11 - How many total stars will be displayed by each of...Ch. 5.11 - What will the following program segment display?...Ch. 5.12 - Prob. 5.24CPCh. 5.12 - What header file must be included in a program to...Ch. 5.12 - What five steps must be taken when a file is used...Ch. 5.12 - What is the difference between a text file and a...Ch. 5.12 - Prob. 5.28CPCh. 5.12 - What type of file stream object do you create if...Ch. 5.12 - What type of file stream object do you create if...Ch. 5.12 - If dataFi1e is an of stream object associated with...Ch. 5.12 - If dataFile is an ifstream object associated with...Ch. 5.12 - Assume you have an output file named numbers.txt...Ch. 5 - To _______ a value means to increase it by one.Ch. 5 - To _______ a value means to decrease it by one.Ch. 5 - Prob. 3RQECh. 5 - Prob. 4RQECh. 5 - The statement or block that is repeated is known...Ch. 5 - Each repetition of a loop is known as a(n)...Ch. 5 - A loop that evaluates its test expression before...Ch. 5 - A loop that evaluates its test expression after...Ch. 5 - A loop that does not have a way of stopping is...Ch. 5 - A(n) ______ is a variable that counts the number...Ch. 5 - Prob. 11RQECh. 5 - A(n) ________ is a variable that is initialized to...Ch. 5 - A(n) ______ is a special value that marks the end...Ch. 5 - The ________ loop is ideal for situations that...Ch. 5 - The _____ loop always iterates at least once.Ch. 5 - The _______and ______ loops will not iterate at...Ch. 5 - Inside the for loops parentheses, the first...Ch. 5 - A loop that is inside another is called a(n)...Ch. 5 - The _________ statement causes a loop to terminate...Ch. 5 - The _____ statement causes a loop to skip the...Ch. 5 - What header file do you need to include in a...Ch. 5 - What data type do you use when you want to create...Ch. 5 - What happens if you open an output file and the...Ch. 5 - What data type do you use when you want to create...Ch. 5 - What is a files read position? Where is the read...Ch. 5 - What should a program do when it is finished using...Ch. 5 - Write code that lets the user enter a number. The...Ch. 5 - Write a do-while loop that asks the user to enter...Ch. 5 - Write a for loop that displays the following set...Ch. 5 - Write a loop that asks the user to enter a number....Ch. 5 - Write a nested loop that displays the following...Ch. 5 - Write a nested loop that displays 10 rows of #...Ch. 5 - Rewrite the following code, converting the while...Ch. 5 - Rewrite the following code, replacing the do-while...Ch. 5 - Convert the following whi1e loop to a for loop:...Ch. 5 - Convert the following for loop to a while loop:...Ch. 5 - Complete the program segment below to write the...Ch. 5 - Complete the following program segment that reads...Ch. 5 - What will each of the following program segments...Ch. 5 - int x = 1 ; while (x 10) x++; cout x;Ch. 5 - Prob. 41RQECh. 5 - Prob. 42RQECh. 5 - Each of the program segments in this section has...Ch. 5 - A) // This code should use a loop to raise a...Ch. 5 - A) // This code should display the sum of two...Ch. 5 - Prob. 46RQECh. 5 - Characters for the ASCII Codes Write a program...Ch. 5 - Sum of Numbers Write a program that asks the user...Ch. 5 - Distance Traveled The distance a vehicle travels...Ch. 5 - Celsius to Fahrenheit Table In one of the Chapter...Ch. 5 - Speed Conversion Chart Write a program that...Ch. 5 - Ocean Levels Assuming the level of the Earths...Ch. 5 - Circle Areas The formula to compute the area of a...Ch. 5 - Pennies for Pay Write a program that calculates...Ch. 5 - Weight Loss If moderately active persons cut their...Ch. 5 - Calories Burned Running on a particular treadmill,...Ch. 5 - Membership Fees Increase A country club, which...Ch. 5 - Random Number Guessing Game Write a program that...Ch. 5 - Random Number Guessing Game Enhancement Enhance...Ch. 5 - The Greatest and Least of These Write a program...Ch. 5 - Student Line-Up A teacher has asked all her...Ch. 5 - Rate of Inflation The annual rate of inflation is...Ch. 5 - Population Write a program that will predict the...Ch. 5 - Math Tutor Version 3 This program started in...Ch. 5 - Hotel Suites Occupancy Write a program that...Ch. 5 - Rectangle Display Write a program that asks the...Ch. 5 - Diamond Display Write a program that uses nested...Ch. 5 - Triangle Display Write a program that uses nested...Ch. 5 - Arrowhead Display Write a program that uses nested...Ch. 5 - Sales Bar Chart Write a program that asks the user...Ch. 5 - Savings Account Balance Write a program that...Ch. 5 - Using FilesTotal and Average Rainfall Write a...Ch. 5 - Using FilesPopulation Bar Chart Write a program...Ch. 5 - Using FilesStudent Line Up Modify the Student...Ch. 5 - Using FilesSavings Account Balance Modification...
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
- In Javaarrow_forwardIn java what is a counter controlled loop, a flag while loop, instance methods, inner classes, shallow copying and deep copyingarrow_forwardThe following terms and concepts are used in Java: counter controlled loop, flag while loop, instance methods, inner classes, shallow and deep copying, and so onarrow_forward
- Note: Please answer the question in C++ only: Citizens of Byteland play the game regularly. They have blocks, each of which represents some integer from 0 to 9. These are arranged together in a random fashion without having to remember that the first block is never 0. Once they form a number, they are read in reverse order. check that the number and its reverse are the same. If both are the same, the player wins. Such numbers are called palindromes. Ash happens to see this game and wants to simulate it on the computer. As a first step, it wants to take input from the user and check if the number is a palindrome and declare whether the user wins or not. Input 1 331 Output losesarrow_forwardException in thread "main" java.lang.NumberFormatException: For input string: "x" for Java code public class Finder { //Write two recursive functions, both of which will parse any length string that consists of digits and numbers. Both functions //should be in the same class and have the following signatures. //use the if/else statement , Find the base case and -1 till you get to base case //recursive function that adds up the digits in the String publicstaticint sumIt(String s) { //if String length is less or equal to 1 retrun 1. if (s.length()<= 1){ return Integer.parseInt(s); }else{ //use Integer.praseInt(s) to convert string to Integer //returns the interger values //else if the CharAt(value in index at 0 = 1) is not equal to the last vaule in the string else {//return the numeric values of a char value + call the SumIt method with a substring = 1 return Character.getNumericValue(s.charAt(0) ) + sumIt(s.substring(1)); } } //write a recursion function that will find…arrow_forwardWrite code in C language. Create an integer array as input in C programming language. Create two threads. The first thread sums the even elements of the array, and the second thread sums the odd elements of the array. You can declare only one function outside the main functionarrow_forward
- WRITE A CODE IN C++ LANGUAGE To implement the multiplayer game with multiple players moving and collecting items concurrently, you can use the following steps: Step 1: Generate a random number between 10 - 99 and multiply it by the last digit of your roll number. Step 2: Divide your roll number with the generated number in step 1 and take the mod of the result with 25. Step 3: If the result in step 2 is less than 10, add 15 to it to get the board size. Step 4: Create an n x n board and initialize it with empty squares and randomly place items on some squares. Step 5: Create a thread for each player and pass the player's ID and starting position to the thread. Step 6: Each player thread should handle the player's movement and item collection. Step 7: When a player moves onto a square that contains an item, the player thread should send a message to the main thread indicating that the player has collected an item and the item's value. Step 8: The main thread should update the…arrow_forwardcreate a circular queue array in c++ and the picture below must be all followedarrow_forwardcode this in RUBY programming languagearrow_forward
- Arrays in Java are objects that use reference semantics. Explain what this means and How it affects modification of arrays. You must start a thread before you can read and reply to other threadsarrow_forwardWrite these in Pseudocode #1a – In pseudocode, write a call to a function that passes 1 Integer variable and 1 Integer array, and saves a Boolean value in return. #1b – In pseudocode, write the function that accepts 1 Integer and 1 Integer array and returns a Boolean. In the function, search the Integer array with a for-loop, and if the Integer parameter is found in the array, return false. If the Integer parameter is not found, return true. #2a – In pseudocode, write a call to a module that passes 1 Integer variable, 1 Real variable, 1 String constant, and 1 String literal as arguments. #2b – In pseudocode, write the module header that accepts 1 Integer, 1 Real, and 2 Strings as parameters. #3 – This pseudocode has multiple problems. Fix the calling statement and the definition below so that the routine accepts 3 grades as parameters and returns the average into a variable.…arrow_forwardWrite a java class named First_Last_Recursive_Merge_Sort that implements the recursive algorithm for Merge Sort. You can use the structure below for your implementation.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
New Perspectives on HTML5, CSS3, and JavaScriptComputer ScienceISBN:9781305503922Author:Patrick M. CareyPublisher:Cengage Learning
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
New Perspectives on HTML5, CSS3, and JavaScript
Computer Science
ISBN:9781305503922
Author:Patrick M. Carey
Publisher:Cengage Learning
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning