public class CounterQ {
  public static int num = 0;
  public int val = 0;
  public CounterQ(int init) {
    this.val = init;
    ++num;
  }
  public void increment() {
    val += 1;
  }

  public int compareTo(CounterQ other) {
    return this.val - other.val;
  } // compareTo

  public static void copy(CounterQ a, CounterQ b) {
    a = b;
  } // copy

  public static void main(String[] args) {
    CounterQ c1 = new CounterQ(5);
    CounterQ c2 = new CounterQ(7);
    c1.increment();
    int compare = c1.compareTo(c2);
    System.out.println(c1.num + " " + c2.num);
    System.out.println(c1.val + " " + c2.val);
    System.out.println(compare);
  }
} // class CounterQ