Question

Write a set of C++ programs to implement the following operations listed in the menu function below.

a. File: main.cpp - contains the main function

b. File: arrayhw.cpp – contains the 1D array function implementations

c. File: arrayhw.h – contains the 1D array function prototyped declarations

d. May create other files to implement any other needed function

The main menu function should display the following: Main Menu, 1D Array Functions Enter a number to choose one of the following actions: 1. Fill the array with random values 2. Calculate the sum of all array values 3. Calculate the average value of array elements 4. Find maximum value in array 5. Find minimum value in array 6. Display the array values 7. Quit the program.

Answer 1

The Code has been posted here:

1. Main.cpp

#include<iostream>
#include "arrayhw.h"
using namespace std;

int main(){

   cout<<"Main Menu, 1D Array Functions Enter a number to choose one of the following actions: \n1. Fill the array with random values \n2. Calculate the sum of all array values \n3. Calculate the average value of array elements \n4. Find maximum value in array \n5. Find minimum value in array \n6. Display the array values \n7. Quit the program.\n";
   int ch = 0, arr[5] = {10,20,30, 40, 50};

   cin>>ch;
  
   switch(ch){
       case 1:
           fillarraywithrandomvalues(arr);          
       break;
       case 2:
           sumofarray(arr);
       break;
       case 3:
           averageofarray(arr);
       break;
       case 4:
           findmax(arr);
       break;
       case 5:
           findmin(arr);
       break;
       case 6:{
           display(arr);
       }
       break;
       case 7:
           quitprog;
       break;
              
   }
  
  
   return 0;
}

2. arrayhw.cpp

#include<iostream>
#include"arrayhw.h"
#include <stdlib.h>
using namespace std;

//Functions inplementation
void fillarraywithrandomvalues(int array[]){
   int val;
   for(int i=0;i<5;i++){
       val = 1 + rand() % 101;
       array[i] = val;
   }
   cout<<"Random Array\n";
   display(array); //Displaying random array

}

void sumofarray(int arr[]){
   float sum = 0.0f;
   for(int i=0;i<5;i++){
       sum += arr[i];
   }
  
   cout<<"Sum of the array = "<<sum<<"\n";
}

void averageofarray(int arr[]){
   float sum = 0.0f;
   for(int i=0;i<5;i++){
       sum += arr[i];
   }
  
   cout<<"Average of the array = "<<sum/5<<"\n";
}

void findmax(int arr[]){
   int max = 0;
   max = arr[0];
   for(int i=0;i<5;i++){
       if(arr[i] > max)
           max = arr[i];
   }
  
   cout<<"Maximum element in the array = "<<max<<"\n";
  
}
void findmin(int arr[]){
   int min = 0;
   min = arr[0];
   for(int i=0;i<5;i++){
       if(arr[i] < min)
           min = arr[i];
   }
  
   cout<<"mininum element in the array = "<<min<<"\n";
  
}
void display(int arr[]){
   for(int i = 0;i<5;i++){
       cout<<"arr[" <<i<<"] --> "<<arr[i]<<"\n";
   }
}

void quitprog(){
   cout<<"quitting...\n";
   exit(0);
}

3. arrayhw.h

//function prototype declarations
void fillarraywithrandomvalues(int []);
void sumofarray(int []);
void averageofarray(int []);
void findmax(int []);
void findmin(int []);
void display(int []);
void quitprog();

output screenshot:

Code screenshot:

main.cpp

Arryahw.cpp

arrayhw.h