# C++ program to find the occurrence of the number in the array using class

Submitted by Shubh Pachori, on September 13, 2022

## Problem statement

Given an array, we have to find the occurrence of the number in the array using the class and object approach.

Example:

```Input:
[0]: 8
[1]: 4
[2]: 3
[3]: 5
[4]: 8
[5]: 0
[6]: 9
[7]: 6
[8]: 1
[9]: 7

Output:
Enter Number: 8
Occurrence of the number in array is 2
```

## C++ code to find the occurrence of the number in the array using the class and object approach

```#include <iostream>
using namespace std;

// create a class
class Array {
// private data member
private:
int arr[10];

// public member functions
public:
// getArray() function to insert
// array elements
void getArray() {
for (int index = 0; index < 10; index++) {
cout << "[" << index << "]: ";
cin >> arr[index];
}
}

// countNumber() function to count the
// Occurrence of the number
int countNumber() {
// initialising int type variable to
// perform operations
int index, number, count = 0;

// inputting number
cout << "Enter Number: ";
cin >> number;

// for loop to traverse the whole array
for (index = 0; index <= 9; index++) {
// if condition to check the occurrence
// of the number inserted
if (number == arr[index]) {
// increment of 1 in count
// at every iteration
count++;
}
}

// returning counter
return count;
}
};

int main() {
// create a object
Array A;

// int type variable to
// store the counter
int count;

// calling getArray() function to
// insert the array
A.getArray();

// calling countNumber() function
// to find the occurrence of the number
count = A.countNumber();

cout << "Occurrence of the number in array is " << count << endl;

return 0;
}
```

### Output

```[0]: 1
[1]: 2
[2]: 3
[3]: 4
[4]: 5
[5]: 6
[6]: 7
[7]: 1
[8]: 8
[9]: 9
Enter Number: 1
Occurrence of the number in array is 2
```

### Explanation

In the above code, we have created a class Array, one int type array data members arr[10] to store the elements of the array, and public member functions getArray() and countNumber() to store the array elements and to find the occurance of the number in the array.

In the main() function, we are creating an object A of class Array, reading the inputted array by the user using getArray() function, and finally calling the countNumber() member function to find the occurance of the number in the array. The countNumber() function contains the logic to find the occurance of the number in the array and printing the result.