Question

• Write a program that accepts as input the mass, in grams, and density, in grams per cubic centimeters, and outputs the volume of the object using the formula: volume = mass / density.

  Format your output to two decimal places.

  ** Add Comments

  
  ** Print Name and Assignment on screen

  
  ** Date

  
  ** Submit .cpp file.

• Demo

  // This program uses a type cast to avoid an integer division.

  #include <iostream> // input - output stream

  #include <fstream> //working file stream

  #include <iomanip> // format output stream OR format file output stream

  #include <string>

  #include <cmath>

  using namespace std;

  int main()

  {

     //------------------------------------------

      cout << "pow(2, 2) : " << pow(2, 2) << endl;

      

      //------------------------------------------

      //ifstream input; //cin to file

      //ofstream output; // cout to file

      //------------------------------------------

    

      int books, months;

      double booksPerMonth;

      // Get user inputs

     cout << "How many books do you plan to read? ";

      cin >> books;

      cout << "How many months will it take you to read them? ";

      cin >> months;

      // Compute and display books read per month

      booksPerMonth = static_cast<double>(books) / months;

      cout << "That is " << booksPerMonth << " books per month.\n";

      booksPerMonth = (books) / months;

      cout << "That is " << booksPerMonth << " books per month.\n";

      /*--------------------------------------------------------------*/

      int number = 65;

      // Display the value of the number variable

      cout << "Display the value of the number variable: " << number << endl;

      // Use a type cast to display the value of number

      // converted to the char data type

      cout << static_cast<char>(number) << endl;

      cout << static_cast<int>('A') << endl;

      /*--------------------------------------------------------------*/

    

      int num1 = 2897, num2 = 5, num3 = 837,

          num4 = 34, num5 = 7, num6 = 1623,

          num7 = 390, num8 = 3456, num9 = 12;

      // Display the first row of numbers

      cout << num1 << " " << num2 << " " << num3 << endl;

     

      // Display the second row of numbers

      cout << num4 << " " << num5 << " " << num6 << endl;

      // Display the third row of numbers

      cout << num7 << " " << num8 << " " << num9 << endl << endl;

      /*-------------------------FORMAT USING setw( int )-------------------------------------*/

      // Display the first row of numbers

      cout << setw(6) << num1 << setw(6) << num2 << setw(6) << num3 << endl;

      // Display the second row of numbers

      cout << setw(6) << num4 << setw(6) << num5 << setw(6) << num6 << endl;

      // Display the third row of numbers

      cout << setw(6) << num7 << setw(6) << num8 << setw(6) << num9 << endl;

      /*--------------------------------------------------------------*/

      int intValue = 3928;

      double doubleValue = 91.5;

      string stringValue = "Jill Q. Jones";

      cout << setfill('*');

      cout << "(" << setw(5) << intValue << ")" << endl;

      cout << "(" << setw(8) << doubleValue << ")" << endl;

      cout << "(" << setw(16) << stringValue << ")" << endl;

      cout << setfill(' ');

      cout << "(" << setw(5) << intValue << ")" << endl;

      cout << "(" << setw(8) << doubleValue << ")" << endl;

      cout << "(" << setw(16) << stringValue << ")" << endl;

      ///*--------------------------------------------------------------*/

     

       double x = 7;

      cout << x << endl;

      cout << showpoint << x << endl;

      cout << fixed << x << endl;

      cout << setprecision(2) << fixed << x << endl;

      /*--------------------------------------------------------------*/

      string name;

      string city;

      cout << "Please enter your name: ";

      getline(cin, name);

    

      cout << "Enter the city you live in: ";

      getline(cin, city);

      cout << "Hello, " << name << endl;

      cout << "You live in " << city << endl;

      /*--------------------------------------------------------------*/

     string firstName , lastName, fullName;

    

      cout << "Please enter your first name: ";

      cin >> firstName;

      cout << "Please enter your last name: ";

      cin >> lastName;

      fullName = firstName + " " + lastName;

      cout << fullName << endl;

    

      system("pause");

      return 0;

  }

Answer 1

Here is your C++ code. If you have any query then ask me in comment section. Please give a thumbs up if you find the answer helpful.

#include<iostream>                     //for cin and cout
#include<iomanip>                 //for setprecision() and fixed
using namespace std;

int main()
{
        //Uncomment below part to show Name and Date
        /*
        cout<<"Name : Your_Name_Here"<<endl;
        cout<<"Date : Date_Here<<endl;
        */
        
        float mass, volume, density;                    //variables to be used
        
        cout<<"Enter the mass of object in grams : ";
        cin>>mass;                                                                //reading mass as an user input
        cout<<"\nEnter the density of object in grams per cubic centimeters : ";
        cin>>density;                                                     //reading density as an user input
        
        volume = mass/density;                                  //calculating volume according to the formula
        cout<<fixed<<"Volume of the object is : "<<setprecision(2)<<volume<<" cubic centimeters.";
        /*
        fixed is a Fixed Floating Point Notation.
        The value is represented with exactly as many digits in the exponent part as specified 
        by the precision field (setprecision()).
        */
}