Java

private void doSomething()
{
Properties properties = readProperties(chooser.getSelectedFile().getCanonicalPath()); <--- compile error
// do something with properties
}
private void readProperties(String location)
{
// do stuff including errorhandling
}

// Tile drawing
tile = new TileMaker[9][9];

tile[i][j] = new TileMaker(Integer.toString(tp.topo[i][j]),i,j);

public class TileMaker extends JPanel{
     private static final long serialVersionUID = 1L;
     public static JPanel panel;
     public static JLabel label;
     public TileCanvas Drawingarea;
     public TileMaker(String name, int xpos, int ypos){		
     }

     public JPanel TileCreator(String name){
          panel = new JPanel(new BorderLayout());
	  panel.setName(name);
	  panel.setPreferredSize(new Dimension(87, 90));
	  panel.setVisible(true);
		
	  Drawingarea = new TileCanvas();
	  panel.add(Drawingarea,BorderLayout.CENTER);
	  return panel;
     }
}

class TileCanvas extends Canvas {
     private static final long serialVersionUID = 345057978247188915L;
     public static ArrayList<TileLeds> ledlist;
     static String imageFile = "cleartile.jpg";
     Image image;
     public Timer ledcountdowntimer;
     private Timer ledcountdowntimer1;
     public int counter = 0;
     public boolean isrunning = false;
     public boolean gameover = false;
     public int myspeed;

     // Make variable for double buffering
     private int bwidth;
     private int bheight;
     private Image bimage;
     private Graphics bgraphics;
	
     public TileCanvas() {
          super();

          // Create LEDs and add them to the ledlist.
          //Set the color black so no led is drawn on the screen.
          ledlist = new ArrayList<TileLeds>();
          ledlist.add(new TileLeds(29,18,10,10,Color.BLACK)); // LED 0
	  ledlist.add(new TileLeds(47,18,10,10,Color.BLACK)); // LED 1
          ledlist.add(new TileLeds(60,30,10,10,Color.BLACK)); // LED 2
          ledlist.add(new TileLeds(60,48,10,10,Color.BLACK)); // LED 3
          ledlist.add(new TileLeds(47,60,10,10,Color.BLACK)); // LED 4	
          ledlist.add(new TileLeds(29,60,10,10,Color.BLACK)); // LED 5
          ledlist.add(new TileLeds(16,48,10,10,Color.BLACK)); // LED 6
          ledlist.add(new TileLeds(16,30,10,10,Color.BLACK)); // LED 7		
		
          // Media tracker used to load an image file
          MediaTracker media = new MediaTracker(this);
          image = Toolkit.getDefaultToolkit().getImage(imageFile);
          media.addImage(image, 0);
          try {
               media.waitForID(0);
          }
          catch (Exception e){
          }
     }

     // LED count down. Commands: run, turnOff, changeColor
     public void ledcountdown1(int speed, final Color color, String command){
     // ************** Count down **************
          if(command == "run"){
               if(isrunning == false){
                    myspeed = speed;
                    //counter = 8;
                    counter = 9;
                    isrunning = true;
                    ledcountdowntimer = new Timer();
                    ledcountdowntimer.schedule(new TimerTask(){
                    public void run(){
                         counter--;
                         // Making sure all LEDs are off
                         for(int g=0; g<8; g++){
                              ledlist.get(g).setcolor(Color.BLACK);
                              repaint();	
                         }
                         // Cancel the timer task and turn all the LEDs off
                         if(counter==0){	
                              //System.out.println("CANCELING THE TIMER");
                              for(int g=0; g<8; g++){
                                   ledlist.get(g).setcolor(Color.BLACK);
                                   repaint();
                              }
                              isrunning = false;
                              ledcountdowntimer.cancel();
                         }
                         // Turn LEDs off one by one from 8
                         else{
                              for(int n=0;n<counter;n++){
                                   ledlist.get(n).setcolor(color);
                                   repaint();
                              }
                         }
                    }
               },0,speed*10);
          }
     }
     
     public void update(Graphics g){
          paint(g);
     }	   
		    
     public void paint(Graphics g){
          //System.out.println("paint");

          // Check the buffersize, it should be the size of the current panel (size of the tile). 
          // Also check if the bufferImage and bufferGraphics. Reset the buffer if anything returns true.                        if(bwidth!=getSize().width||bheight!=getSize().height||bimage==null||bgraphics==null)
          resetBuffer();

          // If graphics exists
          if(bgraphics!=null){
          //  Clear the offscreen image
               bgraphics.clearRect(0,0,bwidth,bheight);
               // Call the paintbuffer with the off screen graphics
               paintBuffer(bgraphics);
               // Paint the off screen image on the screen
               g.drawImage(bimage,0,0,this);
          }
     }
		      
     private void resetBuffer(){

          // Check the image size
          bwidth=getSize().width;
          bheight=getSize().height;
		
          // Dispose of the old graphics and image
          if(bgraphics!=null){
               bgraphics.dispose();
               bgraphics=null;
          }
          if(bimage!=null){
               bimage.flush();
               bimage=null;
          }
		
          // Run the garbage collector
          System.gc();
		
          // Create a buffer image with the size of the panel
          bimage = createImage(bwidth, bheight);
          bgraphics = bimage.getGraphics();
     }
     
     public void paintBuffer(Graphics g){
          //System.out.println("paintBuffer");
		
          // Drawing the tile
          g.drawImage(image, 0, 0 , this);
	    
          // Loop through the LEDs
          for(int i=0; i<8; i++){
               if(ledlist.get(i).getcolor()!=Color.BLACK){
                    g.setColor(ledlist.get(i).getcolor());
                    g.fillOval(ledlist.get(i).getx1(), ledlist.get(i).gety1(), ledlist.get(i).getx2(), ledlist.get(i).gety2());
               }
          }
     }
}