// File: DynamicExample20.java
//
// Author: Rahul Simha
// Created: Sept 2, 1998.
// Modified: Sept, 2008.
//
// Can a static method access instance variables?

class Customer {

  String custName;
  int bankBalance;

  public Customer (String cname, int balance)
  {
    custName = cname;
    bankBalance = balance;      
  }

  public static int compare (Customer c1, Customer c2)
  {
    int b1 = c1.bankBalance;
    int b2 = c2.bankBalance;

    double ratio = (double) b1 / (double) b2;

    // Comparable if within same order of magnitude.
    if ( (0.1 < ratio) && (ratio < 10) )
      return 0; 
    else if (ratio < 1)
      return -1;
    else
      return 1;
  }

}

public class DynamicExample20 {

  public static void main (String[] argv)
  {
    Customer c1 = new Customer ("Dilbert D", 1000000);
    Customer c2 = new Customer ("Beetle B", 100000);

    int comp = Customer.compare (c1, c2);

    if (comp < 0)
      System.out.println ("c2 is richer");
    else if (comp > 0)
      System.out.println ("c1 is richer");
    else 
      System.out.println ("same balance");

  }
}