# Find positive numbers from array of integers using C# program

Learn, how to find out positive numbers from list of integers?
[Last updated : March 19, 2023]

## Finding positive numbers from an array

Given array of integers, and we have to all positive numbers.

To find out positive numbers from array: we check each number, if number is greater than or equal to zero then it will be a positive number. We traverse array of integer, if it is positive number then we will print that number of console.

### Example

```Input:
18, -13, 23, -12, 27

Output:
18 is a positive number because it is greater than equal to zero.
-13 is not a positive number because it is not greater than equal to zero.
23 is a positive number because it is greater than equal to zero.
-12 is not a positive number because it is not greater than equal to zero.
27 is a positive number because it is greater than equal to zero.
```

## C# program to find positive numbers from an array

```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1 {
class Program {
static void Main() {
int i = 0;
int[] arr = new int[5];

Console.WriteLine("Enter array elements : ");
for (i = 0; i < arr.Length; i++) {
Console.Write("Element[" + (i + 1) + "]: ");
}

Console.WriteLine("List of positive numbers : ");
for (i = 0; i < arr.Length; i++) {
if (arr[i] >= 0)
Console.Write(arr[i] + " ");
}
Console.WriteLine();
}
}
}
```

### Output

```Enter array elements :
Element[1]: 12
Element[2]: -13
Element[3]: 14
Element[4]: -15
Element[5]: -17
List of positive numbers :
12 14
```