public class Main { public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter your input."); int[] arr = {0,1,2,3,4,5,6,7,8,9}; int target = in.nextInt(); int ans = linearSearch(arr,target); System.out.println(ans); } // Search in array // Return 0 if item found if not return -1 static int linearSearch(int[] arr,int target){ if ( arr.length == 0){ return -1; } int ans; for (int i = 0; i < arr.length; i++){ int element = arr[i]; if (element == target){ return i; } } return -1; }