public class LinearSearch {

    public static int linearSearch(int[] arr, int target) {

        for(int i = 0; i < arr.length; i++) {

            if(arr[i] == target) {
                return i;
            }
        }

        return -1;
    }

    public static void main(String[] args) {

        int[] arr = {2, 4, 6, 8, 10};

        int target = 8;

        int result = linearSearch(arr, target);

        if(result != -1) {
            System.out.println("Element found at index: " + result);
        }
        else {
            System.out.println("Element not found");
        }
    }
}