accountsetaccess.java

国外的数据结构与算法分析用书

package Sets;

import Accounts.*;
import People.Customer;
import dslib.dictionary.PKeyedDictUos;
import dslib.dictionary.arrayed.ArrayedPKeyedDictUos;

/**	Allows access to the dictionary of accounts. */
public class AccountSetAccess
{
	/**	The dictionary for accounts. */
		private static PKeyedDictUos dictionary;

	/**	Returns the dictionary that maps account numbers to account objects. 
		Analysis: Time = O(1) */ 
	public static PKeyedDictUos dictionary()
	{
		return dictionary;
	}
	/**	Display all the account information 
		Analysis: Time = O(1) */
	public static void displayAccount()
	{
		System.out.println("The account information for customer Elvis Presley is as following: ");
		System.out.println("The checking account number is: 1");
		System.out.println("The saving account number is: 2\n");
		System.out.println("The account information for customer Wile E. Coyote is as following: ");
		System.out.println("The saving account number is 3\n");
	}
		
	/**	Initializes the staff dictionary.
		Analysis: Time = O(1) */
	static 
	{
		dictionary = new ArrayedPKeyedDictUos(5);
		Customer c;
		Account a;
		c = (Customer) CustomerSetAccess.dictionary().obtain("Elvis Presley");
		a = new CheckingAccount(c, 1);
		dictionary.insert(new Integer(1), a);
		c.addAccount(a);   // add to the customer's account list
		a = new SavingsAccount(c, 2);
		dictionary.insert(new Integer(2), a);
		c.addAccount(a);   // add to the customer's account list
		c = (Customer) CustomerSetAccess.dictionary().obtain("Wile E. Coyote");
		a = new SavingsAccount(c, 3);
		dictionary.insert(new Integer(3), a);
		c.addAccount(a);  // add to the customer's account list
	}
}