Starting Out with C++ from Control Structures to Objects (9th Edition)
9th Edition
ISBN: 9780134443850
Author: GADDIS
Publisher: PEARSON
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Chapter 5, Problem 25PC
Program Plan Intro
Using Files-Student Line Up
- Include the required header files to the program.
- Define the “main()” function.
- Declare the required variables.
- Open the input file and read it until the no more data to read from the file.
- Close the file.
- Print the front and back name of the student.
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Finish this program from the code posted below! Note: There should be two files Main.py and Contact.py
You will implement the edit_contact function. In the function, do the following:
Ask the user to enter the name of the contact they want to edit.
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Remove one of the phone numbers from that Contact.
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Stop editing the Contact
Once the user is finished making changes to the Contact, the function should return.
Code:from Contact import Contactimport pickledef load_contacts():""" Unpickle the data on mydata.dat and save it to a dictionaryReturn an empty dictionary if the file doesn't exist """try:with open("mydata.dat", 'rb') as file:return…
Lab 8.1 - Using Value and Reference Parameters
In Visual Studio Code under labactivity8_1 folder, create a new file main.cpp. Open the C++ source file main.cpp in the text editor and copy the source code below.
/** * @file WRITE FILE NAME * @author WRITE STUDENT NAME(S) * @brief Using value and reference parameters. This program * uses a function to swap the values in two variables. * @date WRITE DATE TODAY * */ #include <iostream> using namespace std; // Function prototype void swapNums(int number1, int number2); int main() { int num1 = 5, num2 = 7; // Print the two variable values cout << "In main the two numbers are " << num1 << " and " << num2 << endl; // Call a function to swap the values stored // in the two variables swapNums(num1, num2); // Print the same two variable values again cout << "Back in main again the two numbers are " << num1 << " and " << num2 << endl; return 0; } /** * @brief WRITE DESCRIPTION OF…
Lab 8.1 - Using Value and Reference Parameters
In Visual Studio Code under labactivity8_1 folder, create a new file main.cpp. Open the C++ source file main.cpp in the text editor and copy the source code below.
/** * @file WRITE FILE NAME * @author WRITE STUDENT NAME(S) * @brief Using value and reference parameters. This program * uses a function to swap the values in two variables. * @date WRITE DATE TODAY * */ #include <iostream> using namespace std; // Function prototype void swapNums(int number1, int number2); int main() { int num1 = 5, num2 = 7; // Print the two variable values cout << "In main the two numbers are " << num1 << " and " << num2 << endl; // Call a function to swap the values stored // in the two variables swapNums(num1, num2); // Print the same two variable values again cout << "Back in main again the two numbers are " << num1 << " and " << num2 << endl; return 0; } /** * @brief WRITE DESCRIPTION OF…
Chapter 5 Solutions
Starting Out with C++ from Control Structures to Objects (9th Edition)
Ch. 5.1 - What will the following program segments display?...Ch. 5.3 - Write an input validation loop that asks the user...Ch. 5.3 - Write an input validation loop that asks the user...Ch. 5.3 - Write an input validation loop that asks the user...Ch. 5.5 - Prob. 5.5CPCh. 5.6 - Name the three expressions that appear inside the...Ch. 5.6 - You want to write a for loop that displays I love...Ch. 5.6 - Prob. 5.8CPCh. 5.6 - Write a for loop that displays your name 10 times.Ch. 5.6 - Write a for loop that displays all of the odd...
Ch. 5.6 - Write a for loop that displays every fifth number,...Ch. 5.8 - Write a for loop that repeats seven times, asking...Ch. 5.8 - In the following program segment, which variable...Ch. 5.8 - Prob. 5.14CPCh. 5.8 - How would you modify Program 5-13 so any negative...Ch. 5.11 - What is an output file? What is an input file?Ch. 5.11 - What three steps must be taken when a file is used...Ch. 5.11 - What is the difference between a text file and a...Ch. 5.11 - Budget Analysis Write a program that asks the user...Ch. 5.11 - Random Number Guessing Game Write a program that...Ch. 5.11 - What type of file stream object do you create if...Ch. 5.11 - Write a short program that uses a for loop to...Ch. 5.11 - Write a short program that opens the file created...Ch. 5 - Why should you indent the statements in the body...Ch. 5 - Describe the difference between pretest loops and...Ch. 5 - Why are the statements in the body of a loop...Ch. 5 - What is the difference between the while loop and...Ch. 5 - Which loop should you use in situations where you...Ch. 5 - Which loop should you use in situations where you...Ch. 5 - Which loop should you use when you know the number...Ch. 5 - Why is it critical that counter variables be...Ch. 5 - Why is it critical that accumulator variables be...Ch. 5 - Why should you be careful not to place a statement...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 data type do you use when you want to create...Ch. 5 - Why should a program close a file when its...Ch. 5 - What is a files read position? Where is the read...Ch. 5 - To ______ a value means toincreaseit by one,and to...Ch. 5 - Prob. 17RQECh. 5 - Prob. 18RQECh. 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 variablethatcountsthe number of...Ch. 5 - A(n) _____ is a sum of numbers that accumulates...Ch. 5 - A(n) _____ is a variable that is initialized to...Ch. 5 - Prob. 27RQECh. 5 - The _____ loop always iterates at least once.Ch. 5 - The _____ and _____ loops will not iterate at all...Ch. 5 - The _____ loop is ideal for situations that...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...Ch. 5 - The _____ statement causes _____ a loop to skip...Ch. 5 - Write a while loop that lets the user enter a...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 10 rows of #...Ch. 5 - Convert the following while loop to a do-while...Ch. 5 - Convert the following do-while loop to a while...Ch. 5 - Convert the following while loop to a for loop:...Ch. 5 - Convert the following for loop to a while loop:...Ch. 5 - Write code that does the following: Opens an...Ch. 5 - Write code that does the following: Opens the...Ch. 5 - Modify the code that you wrote in Question 45 so...Ch. 5 - T F The operand of the increment and decrement...Ch. 5 - T F The cout statement in the following program...Ch. 5 - T F The cout statement in the following program...Ch. 5 - T F The while loop is a pretest loop.Ch. 5 - T F The do-while loop is a pretest loop.Ch. 5 - T F The for loop is a posttest loop.Ch. 5 - T F It is not necessary to initialize counter...Ch. 5 - T F All three of the for loops expressions may be...Ch. 5 - T F One limitation of the for loop is that only...Ch. 5 - T F Variables may be defined inside the body of a...Ch. 5 - T F A variable may be defined in the...Ch. 5 - T F In a nested loop, the outer loop executes...Ch. 5 - T F In a nested loop, the inner loop goes through...Ch. 5 - T F To calculate the total number of iterations of...Ch. 5 - T F The break statement causes a loop to stop the...Ch. 5 - T F The continue statement causes a terminated...Ch. 5 - T F In a nested loop, the break statement only...Ch. 5 - Prob. 64RQECh. 5 - // Find the error in this program. #include...Ch. 5 - // This program adds two numbers entered by the...Ch. 5 - // This program uses a loop to raise a number to a...Ch. 5 - // This program averages a set of numbers....Ch. 5 - // This program displays the sum of two numbers....Ch. 5 - // This program displays the sum of the numbers...Ch. 5 - Sum of Numbers Write a program that asks the user...Ch. 5 - Characters for the ASCII Codes Write a program...Ch. 5 - Ocean Levels Assuming the oceans level is...Ch. 5 - Calories Burned Running on a particular treadmill...Ch. 5 - Membership Fees Increase A country club, which...Ch. 5 - Distance Traveled The distance a vehicle travels...Ch. 5 - Pennies for Pay Write a program that calculates...Ch. 5 - Math Tutor This program started in Programming...Ch. 5 - Hotel Occupancy Write a program that calculates...Ch. 5 - Average Rainfall Write a program that uses nested...Ch. 5 - Population Write a program that will predict the...Ch. 5 - Celsius to Fahrenheit Table In Programming...Ch. 5 - The Greatest and Least of These Write a program...Ch. 5 - Student Line Up A teacher has asked all her...Ch. 5 - Payroll Report Write a program that displays a...Ch. 5 - Savings Account Balance Write a program that...Ch. 5 - Sales Bar Chart Write a program that asks the user...Ch. 5 - Prob. 18PCCh. 5 - Budget Analysis Write a program that asks the user...Ch. 5 - Random Number Guessing Game Write a program that...Ch. 5 - Random Number Guessing Game Enhancement Enhance...Ch. 5 - Square Display Write a program that asks the user...Ch. 5 - Pattern Displays Write a program that uses a loop...Ch. 5 - Using FilesNumeric Processing If you have...Ch. 5 - Prob. 25PCCh. 5 - Personal Web Page Generator Write a program that...
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