Read user input into Array in C++

Syntax

any_loop{
   // Based on Array Size
}

//12 is Array Size
for (i = 0; i < 12; i++) {
   // Reading User Input sales value Based on index
   cin >> sales[i]; //i is index 
}

Example Program

/*  Read User Input into Array example program In C++ Programming Language
    Array Example In C++*/

// Header Files
#include <iostream>
#include<conio.h>

using namespace std;

int main() {
   // declaring sales array in C
   int sales[12];

   int i; // Variable for access sales array index
   cout << "Read User Input into Array In C++ Example Program\n";

   for (i = 0; i < 12; i++) {
      // Reading User Input sales value Based on index
      cout << "Enter Value for Position " << i << " : ";
      cin >> sales[i];
   }

   cout << "\n User Input Values\n";
   for (i = 0; i < 12; i++) {
      // Accessing sales value using for loop
      cout << "Position : " << i << " , Sales Value : " << sales[i] << " \n";
   }

   getch();
   return 0;
}

Sample Output

Read User Input into Array In C++ Example Program
Enter Value for Position 0 : 900
Enter Value for Position 1 : 200
Enter Value for Position 2 : 800
Enter Value for Position 3 : 700
Enter Value for Position 4 : 750
Enter Value for Position 5 : 901
Enter Value for Position 6 : 800
Enter Value for Position 7 : 820
Enter Value for Position 8 : 980
Enter Value for Position 9 : 860
Enter Value for Position 10 : 870
Enter Value for Position 11 : 930

User Input Values
Position : 0 , Sales Value : 900
Position : 1 , Sales Value : 200
Position : 2 , Sales Value : 800
Position : 3 , Sales Value : 700
Position : 4 , Sales Value : 750
Position : 5 , Sales Value : 901
Position : 6 , Sales Value : 800
Position : 7 , Sales Value : 820
Position : 8 , Sales Value : 980
Position : 9 , Sales Value : 860
Position : 10 , Sales Value : 870
Position : 11 , Sales Value : 930

How It Works

This C++ program demonstrates Read user input into Array. It first reads the required values as input, then walks through the data with a loop to compute the result, and finally prints the output shown in the Sample Output above.

1. Declare the variables that hold the program’s data.
2. Read the input values that the program will work with.
3. Iterate over the data using a loop to apply the logic.
4. Print the final result to the console so you can compare it with the sample output.

Try changing the input values and re-running the program to see how the output changes — this is the fastest way to understand how the logic behaves.

Related Pages

Continue learning with these related tutorials and programs:

• C++ Tutorials — Browse all C++ Tutorials.
• Understanding Array in C++ — Tutorial — array declaration, access and iteration.
• Passing Arrays to Functions In C++ — More in array in c.