usecard.java

Java程序设计实验与实训源代码经典的JAVA学习教材

//UseCard.java
//卡号、密码、余额
class card
{
public long cardNumber;                  //卡号
public int password;                     //密码
public String connectNumber;             //连接卡号	     
public	boolean connected;               //连接标志	
public card()
	{
	}
public card(long acardNumber, int apassword, String aconnectNumber,boolean aconnected) //构造函数
    {
		cardNumber=acardNumber;                  //卡号
		password=apassword;                      //密码
	    connectNumber=aconnectNumber;            //连接卡号	
	    connected=aconnected;		             //连接标志
	}
		public	void setcar(long acardNumber, int apassword)
	{		
		password=apassword;
		cardNumber = acardNumber;  //连接卡号
	}
	public boolean getcar(long acardNumber,int apassword)
	{		 
		if( cardNumber==acardNumber && password == apassword)
	    	return true;
		else
		    return false;		
	}

	public void show(long acardNumber, int apassword,  String aconnectNumber,boolean aconnected)	
	{		
		if(aconnected)
		   { String s="卡已接通";
		   System.out.println("卡接入号" + aconnectNumber +"卡号:"+acardNumber+ "卡密码:"+apassword+ "状态"+s);
			}
		else
			{	
			String s="卡未接通";
		    System.out.println("接入号" + aconnectNumber +"卡号:"+acardNumber+ "密码:"+apassword+"状态"+s);
			}
	}			

}
 
 class soldcard extends card  
{
	private double price;                           //价格
	private int reachday;	                       //到达日期 
	private int reachyear; 	                       //到达年份
	private String reachmonth;                     //到达月份
	private String clientname;                     //客户姓名
	private String cartype;                        //汽车类型
	private String selldate;                       //销售日期
	
	public soldcard()                             //默认的构造函数                       
	{
	}
	public soldcard(double aprice,int areachday,int areachyear,String areachmonth,String aclientname,                 //客户姓名
	String acartype,String aselldate)            //另一个构造函数
	{
	    super();                                 //调用父类的构造函数
	    price=aprice;                            //价格
	    reachday=areachday;	                     //到达日期 
	    reachyear=areachyear; 	                 //到达年份
	    reachmonth=areachmonth;                  //到达月份
	    clientname=aclientname;                  //客户姓名
	    cartype=acartype;                        //汽车类型
	    selldate=aselldate;                      //销售日期
	    
	}
	public void setcar(long acardNumber, int apassword,String acartype,double aprice,String aclientname,String aselldate) //重构子类的设置方法
	{
		 super.setcar(acardNumber, apassword);    //继承父类的设置并且重构
		 price=aprice;                            //价格
		 clientname=aclientname;                  //客户姓名
	     cartype=acartype;                        //汽车类型
	     selldate=aselldate;                      //销售日期
	}

	double getprice(boolean aconnected)          //只有合法用户才涉及价格
	{
		if(aconnected)
			return price;
	else
			return -1;
	}
	
	public void show(long acardNumber, int apassword,  String aconnectNumber,boolean aconnected,String acartype,
	double aprice,String aclientname,String aselldate)	
	{		   
	   super.show(acardNumber,apassword, aconnectNumber,aconnected);
	   System.out.println("汽车型号" + acartype+"价格"+aprice+ "客户姓名"+aclientname+ "销售日期" + aselldate);
	
	}			
}
 public class UseCard
 {
	public static void main (String[]args)
	{
		card PhCa1=new card();
		PhCa1.setcar(21282828,1234);
		boolean aConnec0=PhCa1.getcar(21282828,1234);
		PhCa1.show(21282828, 1234, "连接",aConnec0);
		boolean aConnec1=false;
		PhCa1.show(21282828, 1234,  "连接",aConnec1);
	 	
 	    soldcard soldcard1;                        //汽车销售的实例1
        soldcard soldcard2;                        //汽车销售的实例2
 	    soldcard1=new soldcard();
 	    double aprice=soldcard1.getprice(aConnec0);
 	    soldcard1.show(21282828, 1234,  "已销售",aConnec0,"重型车EQ1300",
	460000,"三峡指挥部","2002年8月");
 	    soldcard2=new soldcard();
 	    soldcard2.show(21282838, 2341, "已销售",aConnec0,"轻型车EQ1064",
	150000,"张文海","2003年3月");
 	    soldcard1.show(21282848, 3412,  "已销售",aConnec0,"中型车EQ1118",
	260000,"裕龙公司","2002年6月"); 	   
 	}
}