med01_linearsearch.java

private static int linearSearch() {
        int arr[] = new int[]{10, 20, 80, 30, 60, 50, 110, 100, 130, 170};
        int x = 110;
        for (int i = 0; i < arr.length; i++) {
            if (x == arr[i]) return i;

        }
        return -1;
    }