求教一个问题，两个方法共享一个栈中的数据如何实现@

Fuckymary 2013-09-25 04:22:10

Car.java



package park;

import java.util.*;

public class Car {

	private int carNumber;

	private int arriveTime;

	private int leaveTime;

	private int money;

	private int MAXSIZE=100;

	public Car(int carNumber, int arriveTime, int leaveTime, int money) {

		this.carNumber = carNumber;

		this.arriveTime = arriveTime;

		this.leaveTime = leaveTime;

		this.money = money;

	}

	

	public Car(int carNumber, int arriveTime) {

		this.carNumber = carNumber;

		this.arriveTime = arriveTime;

	}

	

	public Car(int carNumber, int leaveTime, int money) {

		this.carNumber = carNumber;

		this.leaveTime = leaveTime;

		this.money = money;

	}

	

	public Car(){}

	public int getArriveTime() {

		return arriveTime;

	}

	public void setArriveTime(int arriveTime) {

		this.arriveTime = arriveTime;

	}

	public int getCarNumber() {

		return carNumber;

	}

	public void setCarNumber(int carNumber) {

		this.carNumber = carNumber;

	}

	public int getLeaveTime() {

		return leaveTime;

	}

	public void setLeaveTime(int leaveTime) {

		this.leaveTime = leaveTime;

	}

	public int getMoney() {

		return money;

	}

	public void setMoney(int money) {

		this.money = money;

	}

	

	public void carArrive(Stack s){

		boolean flag = false;

		//Stack s=new Stack();

		Car c=null;

        if(s.size()<MAXSIZE){

        	for(int i=0;i<s.size();i++){

        		c=(Car)s.get(i);

        		if(c.getCarNumber()==this.getCarNumber()){

        			flag=false;

        			System.out.println("此号已有!");

        			break;

        		}

        		else{

        			flag=true;

        		}

        	}

        }else{

        	flag=true;

        }

        if(flag){

        	//s.push(this);

        	s.addElement(this);

        }

        System.out.println(this.getCarNumber()+"到达");

        System.out.println("到达时间"+this.getArriveTime());

		

	}

	

	public void carLeave(Stack s){

		Car c=null;

		//Iterator it=s.iterator();

		System.out.println(s.isEmpty());

		for(int i=0; i<s.size();i++){

			c=(Car)s.get(i);

			if(c.getCarNumber()==this.getCarNumber()){

				s.removeElementAt(i);

				this.setMoney(this.getArriveTime()-this.getLeaveTime());

				System.out.println(this.getCarNumber()+"离开");

				System.out.println("离开时间"+this.getArriveTime());

			}

		}

	}

	

	

	/*

	public static void main(String[] args){

		Car c=new Car();

		c.carArrive();

	}

	*/

	



}

CarDemo.java



package park;

import java.awt.*;

import java.awt.event.*;

import java.util.Stack;



import javax.swing.*;

import javax.swing.GroupLayout.Alignment;

public class CarDemo extends JFrame implements ActionListener{

	

	private int frame_width=500;

	private int frame_height=300;

	private JLabel numberL,timeL,moneyL;

	private JTextField numberT,timeT,moneyT;

	private JButton arriveB,leaveB;

	private JPanel panel1,panel2,panel3,panel4;

	Stack s;

	public CarDemo(String title){

		super(title);

		s=new Stack();

		this.setLayout(new GridLayout(4,1));

		numberL=new JLabel("车号:");

		numberT=new JTextField(10);

		numberT.setPreferredSize(new Dimension(100,30));

		panel1=new JPanel(new FlowLayout());

		panel1.add(numberL);

		panel1.add(numberT);

		panel1.setBackground(Color.BLUE);

		//contentPane.add(panel1);

		this.add(panel1);

		timeL=new JLabel("时间:");

		timeT=new JTextField(10);

		timeT.setPreferredSize(new Dimension(100,30));

		panel2=new JPanel(new FlowLayout());

		panel2.add(timeL);

		panel2.add(timeT);

		panel2.setBackground(Color.red);

		//contentPane.add(panel2);

		this.add(panel2);

		moneyL=new JLabel("费用:");

		moneyT=new JTextField(10);

		moneyT.setEditable(false);

		moneyT.setPreferredSize(new Dimension(100,30));

		panel3=new JPanel(new FlowLayout());

		panel3.add(moneyL);

		panel3.add(moneyT);

		panel3.setBackground(Color.gray);

		//contentPane.add(panel3);

		this.add(panel3);

		arriveB=new JButton("到达");

		leaveB=new JButton("离开");

		arriveB.setPreferredSize(new Dimension(100,30));

		leaveB.setPreferredSize(new Dimension(100,30));

		//arriveB.setContentAreaFilled(false);

		//leaveB.setContentAreaFilled(false);

		arriveB.setBorderPainted(false);

		leaveB.setBorderPainted(false);

		arriveB.addActionListener(this);

		leaveB.addActionListener(this);

		panel4=new JPanel(new FlowLayout());

		panel4.add(arriveB);

		panel4.add(leaveB);

		panel4.setBackground(Color.yellow);

		//contentPane.add(panel4);

		this.add(panel4);

		setVisible(true);

		Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();

		int centerX = screenSize.width / 2;

		int centerY = screenSize.height / 2;

		setBounds(centerX - frame_width / 2, centerY - frame_height / 2,frame_width, frame_height);

		setDefaultCloseOperation(EXIT_ON_CLOSE);

	}



	public void actionPerformed(ActionEvent e) {

		Car car=null;

		//Stack s=new Stack();

		if(e.getSource()==arriveB){

			int number=Integer.valueOf(numberT.getText());

			int arriveTime=Integer.valueOf(timeT.getText());

			car=new Car(number,arriveTime);

			car.carArrive(s);

		}

		if(e.getSource()==leaveB){

			int number=Integer.valueOf(numberT.getText());

			int leaveTime=Integer.valueOf(timeT.getText());

			car=new Car(number,leaveTime);

            car.carLeave(s);

			moneyT.setText(String.valueOf(car.getMoney()));

			

			

			

		}

		

		

	}

	

	public static void main(String[] args){

		new CarDemo("停车管理");

		

	}



}