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valentina_108 [34]
3 years ago
8

The ability to write functions is one of the more powerful capabilities in C++. Functions allow code to be reused, and provides

a mechanism for introducing the concept of modularity to the programming process. In addition to the concept of functions, C++ allows complex programs to be organized using header files (.h files) that contain the prototypes of functions and implementation files that (.cpp files) that contain the implementation (definition) of the functions.
In this programming assignment you will be asked to implement a number of useful functions using a header file and an implementation file. You will place the prototypes for your function in a .h file, and implement these functions in a .cpp file. You will need to write a driver (a program designed to test programs) to test your functions before you upload them.
[edit]Deliverables:
main.cpp
myFunctions.cpp
myFunctions.h
[edit]Function:
[edit]max
Precondition
two integer values exist
Postcondition
The value of the largest integer is returned.
The original integers are unchanged
If the integers have the same value then the value of either integer is returned.
Return
integer
Description
Function returns the value of the larger of two integers.
Prototype:
int max ( int, int )
Sample Parameter Values
m n max(m,n)
5 10 10
-3 -6 -3
Computers and Technology
1 answer:
Lunna [17]3 years ago
6 0

Answer:

The header file in C++ is as follows

myFunction.h

void max(int a, int b)

{

if(a>b)

{

 std::cout<<a;

}

else

{

 std::cout<<b;

}

<em>}</em>

The Driver Program is as follows:

#include<iostream>

#include<myFunction.h>

<em>using namespace std;  </em>

int main()

{

int m,n;

cin>>m;

cin>>n;

max(m,n);

<em>}</em>

Explanation:

It should be noted that, for this program to work without errors, the header file (myFunction.h) has to be saved in the include directory of the C++ IDE software you are using.

For instance; To answer this question I used DevC++

So, the first thing I did after coding myFunction.h is to save this file in the following directory  ..\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\

Back to the code

myFunction.h

void max(int a, int b)  {

-> This prototype is intialized with integer variables a and b

if(a>b)  -> If the value of a is greater than b;

{

 std::cout<<a;  -> then the value of variable a will be printed

}

else

-> if otherwise,

{

 std::cout<<b;

-> The value of b will be printed

}

}

Driver File (The .cpp file)

#include<iostream>

#include<myFunction.h>  -> This line includes the uesr defined header

using namespace std;  

int main()

{

int m,n;  -> Two integer variables are declared

      cin>>m;  -> This line accepts first integer input

      cin>>n;  -> This line accepts second integer input

max(m,n);

-> This line calls user defined function to return the largest of the two integer variables

}

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Answer:

Check the explanation

Explanation:

CODE:

#include <iostream>

#include <iomanip>

using namespace std;

double getLoanAmount() { // functions as per asked in question

double loan;

while(true){ // while loop is used to re prompt

cout << "Enter the car loan amount ($2,500-7,500): ";

cin >> loan;

if (loan>=2500 && loan <= 7500){ // if the condition is fulfilled then

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}

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cout << "Error: $"<< loan << " is an invalid loan amount." << endl;

}

}

return loan;

}

double getMonthlyPayment(){ // functions as per asked in question

double monthpay;

while(true){ // while loop is used to re prompt

cout << "Enter the monthly payment ($50-750): ";

cin >> monthpay;

if (monthpay>=50 && monthpay <= 750){ // if the condition is fulfilled then

break; // break statement is use to come out of while loop

}

else{ // else error message is printed

cout << "Error: $"<< monthpay << " is an invalid monthly payment." << endl;

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}

return monthpay;

}

double getInterestRate(){ // functions as per asked in question

double rate;

while(true){ // while loop is used to re prompt

cout << "Enter the annual interest rate (1-6%): ";

cin >> rate;

if (rate>=1 && rate <= 6){ // if the condition is fulfilled then

break; // break statement is use to come out of while loop

}

else{ // else error message is printed

cout << "Error: "<< rate << "% is an invalid annual interest rate." << endl;

}

}

return rate;

}

int main() {

cout << setprecision(2) << fixed; // to print with 2 decimal places

int month = 0; // initializing month

// calling functions and storing the returned value

double balance= getLoanAmount();

double payment= getMonthlyPayment();

double rate= getInterestRate();

rate = rate /12 /100; // as per question

// printing as per required in question

cout << "Month Balance($) Payment($) Interest($) Principal($)"<< endl;

while(balance>0){ // while the balance is more than zero

month = month + 1; // counting Months

// calculations as per questions

double interest = balance * rate;

double principal = payment - interest;

balance = balance - principal;

// printing required info with proper spacing

cout <<" "<< month;

cout <<" "<< balance;

cout <<" "<< payment;

cout <<" "<< interest;

cout <<" "<< principal << endl;

}

cout << "Months to repay loan: " << month << endl; // displaying month

cout << "End of Banker Bisons";

Kindly check the output in the attached image below.

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Answer:

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#include <iostream> // header file

using namespace std; // namespace std

int main() // main method

{

   int n;  // variable declaration

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   cin>>n; // Read the number

   if(n>0) // check the condition when number is positive

   {

cout<<n<<endl<<"The number is Positive"; // Display number

   }

  else if(n<0) // check the condition when number is Negative

  {

cout<<n<<endl<<"The number is Negative";// Display number

  }

  else // check the condition when number is Zero

  {

cout<<n<<endl<<"The number is Zero";// Display number

  }

   return 0;

  }

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Explanation:

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  • Read the value of "n" by user.
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