Starting Out with C++ from Control Structures to Objects (8th Edition)
8th Edition
ISBN: 9780133778793
Author: GADDIS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 9, Problem 15RQE
Program Description Answer
The “pointer” variables are used to store the address.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
C++
Create a class Student that contains three members: roll no, name and mark, and three functions. Write a first inputStudent() function to get data of student class. Write a second getMark() function that returns a student’s mark. Write a third display() function that displays a student’s data. In a main() function, you need to declare 40 students and get data of all students by using inputStudent() function. And also use a pointer array to keep all students by mark greater than 50 and display the searching data of each student in that pointer array (Use the access operator -> to access a pointer points to member functions of the Student class).
If integer pointer aPtr is to point at a data item whose value may not change it must be declared as ...
A.
const int * const aPtr;
B.
int *aPtr;
C.
int *const aPtr;
D.
const int *aPtr;
this C++ code is pre-existing and cannot be changed or modified. for it to work, the program has to use this information.
#include <iostream>#include <vector>using namespace std;
int main() { const int NUM_VALS = 4; vector<int> courseGrades(NUM_VALS); int i;
for (i = 0; i < courseGrades.size(); ++i) { cin >> courseGrades.at(i); }
//enter code here//
return 0;
}
Chapter 9 Solutions
Starting Out with C++ from Control Structures to Objects (8th Edition)
Ch. 9.5 - Prob. 9.1CPCh. 9.5 - Write the definition statement for a variable...Ch. 9.5 - List three uses of the symbol in C++.Ch. 9.5 - What is the output of the following code? int x =...Ch. 9.5 - Rewrite the following loop so it uses pointer...Ch. 9.5 - Prob. 9.6CPCh. 9.5 - Prob. 9.7CPCh. 9.5 - Is each of the following definitions valid or...Ch. 9.9 - Prob. 9.9CPCh. 9.9 - Give an example of the proper way to call the...
Ch. 9.9 - Complete the following program skeleton. When...Ch. 9.9 - Look at the following array definition: const int...Ch. 9.9 - Assume ip is a pointer to an int. Write a...Ch. 9.9 - Prob. 9.14CPCh. 9.9 - Prob. 9.15CPCh. 9.9 - Prob. 9.16CPCh. 9.9 - Prob. 9.17CPCh. 9 - What does the indirection operator do?Ch. 9 - Look at the following code. int x = 7; int iptr =...Ch. 9 - So far you have learned three different uses for...Ch. 9 - Prob. 4RQECh. 9 - Prob. 5RQECh. 9 - Prob. 6RQECh. 9 - What is the purpose of the new operator?Ch. 9 - What happens when a program uses the new operator...Ch. 9 - Prob. 9RQECh. 9 - Prob. 10RQECh. 9 - Prob. 11RQECh. 9 - Prob. 12RQECh. 9 - Each byte in memory is assigned a unique...Ch. 9 - The _________ operator can be used to determine a...Ch. 9 - Prob. 15RQECh. 9 - The ________ operator can be used to work with the...Ch. 9 - Array names can be used as ________, and vice...Ch. 9 - Prob. 18RQECh. 9 - The ________ operator is used to dynamically...Ch. 9 - Under older compilers, if the new operator cannot...Ch. 9 - Prob. 21RQECh. 9 - When a program is finished with a chunk of...Ch. 9 - You should only use pointers with delete that were...Ch. 9 - Prob. 24RQECh. 9 - Look at the following array definition: int...Ch. 9 - Prob. 26RQECh. 9 - Assume tempNumbers is a pointer that points to a...Ch. 9 - Look at the following function definition: void...Ch. 9 - Prob. 29RQECh. 9 - Prob. 30RQECh. 9 - Prob. 31RQECh. 9 - T F The operator is used to get the address of a...Ch. 9 - T F Pointer variables are designed to hold...Ch. 9 - T F The symbol is called the indirection...Ch. 9 - T F The operator dereferences a pointer.Ch. 9 - T F When the indirection operator is used with a...Ch. 9 - T F Array names cannot be dereferenced with the...Ch. 9 - Prob. 38RQECh. 9 - T F The address operator is not needed to assign...Ch. 9 - T F You can change the address that an array name...Ch. 9 - T F Any mathematical operation, including...Ch. 9 - T F Pointers may be compared using the relational...Ch. 9 - T F When used as function parameters, reference...Ch. 9 - T F The new operator dynamically allocates memory.Ch. 9 - T F A pointer variable that has not been...Ch. 9 - Prob. 46RQECh. 9 - T F In using a pointer with the delete operator,...Ch. 9 - Prob. 48RQECh. 9 - Prob. 49RQECh. 9 - int x, ptr = nullptr; ptr = x;Ch. 9 - Prob. 51RQECh. 9 - Prob. 52RQECh. 9 - Prob. 53RQECh. 9 - float level; int fptr = level;Ch. 9 - Prob. 55RQECh. 9 - Prob. 56RQECh. 9 - Prob. 57RQECh. 9 - Prob. 58RQECh. 9 - int pint = nullptr; pint = new int[100]; //...Ch. 9 - Prob. 60RQECh. 9 - Prob. 61RQECh. 9 - Prob. 62RQECh. 9 - Array Allocator Write a function that dynamically...Ch. 9 - Test Scores #1 Write a program that dynamically...Ch. 9 - Drop Lowest Score Modify Problem 2 above so the...Ch. 9 - Test Scores #2 Modify the program of Programming...Ch. 9 - Prob. 5PCCh. 9 - Case Study Modification #1 Modify Program 9-19...Ch. 9 - Case Study Modification #2 Modify Program 9-19...Ch. 9 - Mode Function In statistics, the mode of a set of...Ch. 9 - Median Function In statistics, when a set of...Ch. 9 - Reverse Array Write a function that accepts an int...Ch. 9 - Array Expander Write a function that accepts an...Ch. 9 - Element Shifter Write a function that accepts an...Ch. 9 - Movie Statistics Write a program that can be used...
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 C Programming Language...THANKS The phone numbers of the companies are stored in the phones.txt. The area codes are missing in some of the phone numbers. (A phone number including area code is 10 characters). You will write a program to format phone numbers and add area code if necessary. At the end all the phone numbers will look like the following; (312) 4250204. Write the following functions; readFromFile that reads all the phone numbers from the file phones.txt into a string array. The function should return the number of phones. updateDirectory that takes the string array which keeps the phone numbers and the number of phones in the array as parameters, and updates the phone numbers adding the parentesis and area code (312) where necessary (i.e (312) 4250204). printDirectory that takes the string array which keeps the phone numbers and the number of phones in the array as parameters, and displays the number of phones and the phone list on the screen.arrow_forwardsolve in c++ Create an application for a supermarket owner. The owner would like to storeup to 50 items. Each item is represented by an ID and a price.The program should ask the user if he/she wants to do one of the followingtasks:1. Enter an item ID and price2. Retrieve the price of a specific item3. Display all items within a specific range of prices4. Delete an item5. Display all items6. Delete all itemsNote: The items should be stored in memory sorted based on price. The six tasks should be implemented as functions.The program should run continuously until the user presses 'e' to exitarrow_forwardC++ code NB: Pointers must be usedarrow_forward
- Task - Using pointers to process arrays (C Languaage) In a TV show, each minute can be either interesting or boring. Assume that if 7 consecutive minutes are boring, then an average viewer will stop watching the show. Write a C program that calculates how many minutes that an average viewer will watch a TV show, given the interesting minutes. Assume the TV shows are 45 minutes long. Requirements Name your program project4_minutes.c. Follow the format of the examples below. The program will read in the number of interesting minutes, then read in the interesting minutes. The program should include the following function. Do not modify the function prototype. int find_minute(int *minutes, int n); minutes represents the input array for interesting minutes, n is the length of the array (the number of interesting minutes). The function returns the how many minutes an average viewer will watch the show. This function should use pointer arithmetic– not subscripting – to visit array…arrow_forward(C++ Language) Create a function that writes to a file named Inventy.txt the information of 8 items. Ask the user for the item's name, the item's quantity in storage, and the item's price and write it to the file. Create a function that reads the file and items' quantity and price to two different arrays. Create a function that computes the subtotal of each item. Implement all functions inside the main program and the computed value should be displayed with the item's name.arrow_forwardc++ programming language given the following variable declaration: double avg; write the required commands to declare a pointer, and then use it to display the value of the variable avg.arrow_forward
- Assume that number is an int array and intptr is an int pointer. Which statement correctly assigns the address of the number array to the intptr pointer?• *intptr = &number;• intptr = &number;• intptr = *number;• intptr = number;arrow_forwardCircle Properties Write a program that prompts for and accepts the diameter of a circle as a floating point number. The program should calculate and output the area and circumference of the circle. A sample run of the program should look like this: Enter circle diameter: 2.5 The area is 4.91 and the circumference is 7.85. Use 3.14159 as your constant for pi. global main ; exposes program entry point to the linkerextern printf ; declare external functionextern scanf section .text ; start of code segment main: push rbp ; preserve base pointer mov rbp,rsp ; copy stack pointer to base pointer pop rbp ; restore base pointer mov rax, 0 ; exit status (0 = success) ret section .data ; start of initialized data segment section .bss ; start of uninitialized data segment section .dataprompt db "Enter circle diameter: ", 0format db "The area is %0.2f and the circumference is %0.2f.", 0pi dq 3.14159…arrow_forward• R7.11A pointer variable can contain a pointer to a single variable, a pointer to an array, nullptr, or a random value. Write code that creates and sets four pointer variables a, b, c, and d to show each of these possibilities.arrow_forward
- C++ programming Chapter(s) Covered: Chapter 1-8 Concepts tested by the program: Working with one dimensional parallel arrays Use of functions Use of loops and conditional statements Project Description The Lo Shu Magic Square is a grid with 3 rows and 3 columnsshown below. The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly. Each number 1 – 9must not be used more than once. So, if you were to add up thenumbers used, The sum of each row, each column and each diagonal all add upto the same number, Write a program that simulates a magic square using 3 onedimensional parallel arrays of integer type. Each one the arrays corresponds to a row of the magicsquare. The program asks the user to enter the values of the magicsquare row by row and informs the user if the grid is a magicsquare or not. See the sample outputs for more clarification. Project Specifications Input for this project: Values of the grid (row by row) Output for this…arrow_forwardISBNThis problem is slightly more difficult than the above problem. This one requires a data type that stores 10 digits. BackgroundPublishers and bookstores use a number system called the International Standard Book Number (ISBN) system to identify books. At the start of publication, each book is assigned a unique ISBN. An ISBN, once assigned, can never be re-used. Click here for detailed information on this numbering system.An ISBN consists of exactly 10 digits. The rightmost digit is the check digit. The check digit is validated modulo 11.• multiply each digit from the first to the ninth by a weight from 10 to 2 respectively (the first digit by 10, the second by 9,.., the ninth by 2).• the sum of the products plus the check digit should be divisible without remainder by 11.• if there is a remainder, the whole number is not a valid ISBN SpecificationsDesign a program that validates an ISBN. Your program keeps accepting a whole number and determining if that whole number is a valid…arrow_forwardHealth application: BMI) Revise Listing 3.4, ComputeAndInterpretBMI.java, to let the user enter weight, feet, and inches. For example, if a person is 5 feet and 10 inches, you will enter 5 for feet and 10 for inches. Here is a sample run: Enter weight in pounds: 140 Enter feet: 5 Enter inches: 10 BMI is 20.087702275404553arrow_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