d200_card.java

所学课程的编码。java的基础例子。可以练习java通过这些例子。。

/*
 * Created on 2005-10-9
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package chap05;

/**
 * @author Administrator
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class D200_Card extends Number_PhoneCard {

	double additoryFee;
	double balance;
	D200_Card(){}
	D200_Card(long cn,int pw,double b,String c)
	{
		cardNumber = cn;
		password = pw;
		balance = b;
		connectNumber = c;
	}
	boolean performDial() {
		if (balance > (0.5 + additoryFee)) {
			balance -= (0.5 + additoryFee);
			return true;
		} else
			return false;
	}
	boolean performDial(long cn,int pass)
	{
		if(performConnection(cn,pass))
			return performDial();
		else
			return false;
	}
}