java 问题

引用:b = new JButton ("insert");

b.addActionListener(new ActionListener(){

@Override

public void actionPerformed(ActionEvent event) {
// TODO Auto-generated method stub

String s= "";

String fileName="";

JFileChooser fc = new JFileChooser();

int r = fc.showOpenDialog(null);

if (r == JFileChooser.APPROVE_OPTION) {


File filename = fc.getSelectedFile();


FileInputStream inputfile = null;


try {


inputfile = new FileInputStream(filename);


int len = 0;


FileReader in = new FileReader(filename.getAbsoluteFile());


BufferedReader br=new BufferedReader(in);


String s1 ="";





while ((s1=br.readLine())!=null){



switch(lineIndex % 8){


case 1:


s = s1;


break;


case 2:


s2 = s1;


break;


case 3:


north = Integer.parseInt(s1);


break;


case 4:


east = Integer.parseInt(s1);


break;


case 5:


west = Integer.parseInt(s1);


break;


case 6:


south = Integer.parseInt(s1);


break;


case 7:


up = Integer.parseInt(s1);


break;


case 0:


down = Integer.parseInt(s1);




objRoom = new Room(s,s2, north, east, west, south, up, down);

roomMap.put(roomIndex, objRoom);


roomIndex++;


break;}



lineIndex++;







}