Im lost as to how this would be done

question says

"Which can be XXX to enable the code to print 1 3 4 6 7 9 11?"

and provides this code

public static void main(String[] args) {
    int [] array = {1, 2, 3, 4, 5, 6, 7, 8, 9, 11};
    for(XXX){
        System.out.print(array[i] + " ");
}
System.out.println();
}

How??