Answered: Translate high-level instructions to…

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter7: User-defined Simple Data Types, Namespaces, And The String Type

Section: Chapter Questions

Problem 1TF

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Question

Write a program to solve the program exercise in chapter 2 #3. Consider the following program skeleton:

Author(s): ..... *

Date: *

Title: Lab assignment 2b -- Standard IO *

Specification: *

Translate high-level instructions to C++ statements

//include statement(s)

//using namespace statement

int main() {

//variable declaration

//executable statements

//return statement

}

Replace the commented statements in the above skeleton with the instructions below:

Write a C++ statement that includes the header file iostream.

• Write a C++ statement that allows you to use cin, cout, and endlwithout the prefix std::.

• Write C++ statement(s) that declare the following variables: num1, num2, num3, and averageof type int.

• Write C++ statements that store 125into num1, 28 into num2, and -25 into num3.

• Write a C++ statement that stores the average of num1, num2, and num3 into average.

• Write C++ statement(s) that output the values of num1, num2, num3, and average.

• Compile and run your program.

Attach the output screen of a successful execution of your program below (Hint:Use the snipping tool to take screenshots):

Part 2 : Formatting Output

Consider the following program skeleton.

/* Author(s): .....

* Date:

* Title: Lab assignment 2a -- C++ Basics Lab assignment 2

* Specification:

* This program will bring in two prices and two quantities of items from the keyboard and

* print those numbers in a formatted chart. */

#include ,iostream>

// Fill in the code to bring in the library for formatted output.

using namespace std;

int main() {

f loat price1, price2; // The price of 2 items

int quantity1, quantity2; // The quantity of 2 items

cout << setprecision(2) << fixed << showpoint;

cout << "Please input the price and quantity of the first item" << endl;

// Fill in the input statement that reads in price1 and quantity1 from the keyboard.

// Fill in the prompt for the second price and quantity.

// Fill in the input statement that reads in price2 and quantity2 from the keyboard.

cout << setw(15) << "PRICE" << setw(12) << "QUANTITY\n\n";

// Fill in the output statement that prints the first price and quantity. Be sure to use // setw() statements.

// Fill in the output statement that prints the second price and quantity.

return 0;

}

Finish the code above by filling in the blanks and the instructions necessary to execute the following sample run. Note that two or more data items can be input at one time by having at least one blank space between them before hitting the enter key.

• Attach the output screen of a successful execution of your program below (Hint:Use the snipping tool to take screenshots)

Part 3: Understanding input failure

Input the code implemented below:

/* Author(s): .....

* Date:

* Title: Lab assignment 2b -- Input failure

* Specification:

* Input Failure program */

#include<iostream>

using namespace std;

int main() {

int a = 10; //Line 1