Program65.java

public class Program65 {

    //Check if an array is sorted(Strictly Increasing)! input -> {1,2,3,4,5)}
    public static boolean isSorted(int arr[], int idx) {
        if (idx == arr.length - 1) {
            return true;
        }
        if (arr[idx] >= arr[idx + 1]) {
            //array is unsorted 
            return false;
        }
        return isSorted(arr, idx + 1);
    }

    public static void main(String args[]) {
        int arr[] = {1, 2, 3, 4, 5};
        System.out.println(isSorted(arr, 0));
    }

}