ohne das array zu touchen

match.java

        int start = 8192;
        int toFind = 32768;
        int data[] = new int[] {start, 16384, toFind, 65536}; // 2^13, ^14, ^15, ^16

        for (int i = 0; i < 4; i++) {
            if (start << i == toFind) {
                System.out.println(i);
            }
        }