java代码

1，

    Properties prop= new Properties();
        try {            
            InputStream is = this.getClass().getResourceAsStream ("/data.properties");
            prop.load(is);             
        }catch(Exception e) {
            // fatal error!
            System.err.println("FATAL ERROR: application root configuration not found: data.properties");
            System.exit(0);
        }

        String coreRootRelative = prop.getProperty("COREROOT");
        
        Class c = this.getClass();
        URL u = c.getProtectionDomain().getCodeSource().getLocation();        
        String fileUri = "";
        try
        {
            fileUri =  URLDecoder.decode(u.getFile(), "UTF-8") ;
        }
        catch(UnsupportedEncodingException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }        
          
        File f = new File(fileUri); 
        String coreRootBeforeChanges = f.getParent();

 2.

    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        int defaultCloseOperation = getDefaultCloseOperation();
        if (e.getID() == WindowEvent.WINDOW_CLOSING ){
            if(defaultCloseOperation != DO_NOTHING_ON_CLOSE){
            this.closeCancel();
            }
        // processActionEvent(new ActionEvent(this,
        // ActionEvent.ACTION_PERFORMED, CANCEL_COMMAND));
        }else if (e.getID() == WindowEvent.WINDOW_OPENED) {
            // simulate tab from last to wrap around to first & properly set
            // initial focus
            if (getComponentCount() > 0)
                getComponent(getComponentCount() - 1).transferFocus();
        }
    }