Colours are not changing when a certain value is used

Question

Hi all. This might look strange. But anywayz...
I am developing a game related to controlling trains and preventing them from clashing into one another. Naturally, my game allows the user to control the colour of the signals present at each station. My game has 3 layers: the first one does the game calculations, the second does the rendering aspects of the game, and the third constantly passes latest game data to the rendering layer.
Now, the data for the signals comes from the first layer as an array of Integers. The array is named 'aspect'. Below is the code:
      switch(aspect.intValue())
case 1:
objGraphics.setColor(java.awt.Color.RED);
break;
case 2:
objGraphics.setColor(java.awt.Color.ORANGE);
break;
case 3:
objGraphics.setColor(java.awt.Color.GREEN);
System.out.println("green");     
The default colour of all the signals is red. Now while the game is in progress, if the user changes the colour of the signal to, for example, green, the change is not reflected on-screen. However, the SOP call works fine - the word 'green' is printed in the console.
What further surprises me is that if I change the statement 'case 1' to 'case 4', and then while the game is in progress, change the colour to green, then the change is reflected on the console.
I placed SOPs to find out if the values inside 'aspect' are correct. Ya they are correct - they contain values '1' at the start of the game, and when the user changes to green, then they contain '3'.
So what could be the problem?

Answer 1

Jeez... sorry.. my mistake.
What I was doing was this: for drawing the signals, I take all the signals from the Calculations layer and store them in a Vector. Now this becomes a Vector of Integer arrays.
In the Rendering layer, I have a loop which draws the stations. I also have a method which draws the aspects for each station. Inside the loop, for each station, I call this method. But I don't know what I was thinking while writing the method - I wrote it such dat it draws all the signals for all stations. Thus, for each call, it would redraw all the signals, not the ones for the current station.
I have changed dat now, and it works. When the user selects a station and then selects the signal he wants, the change is rendered onscreen. Yippee!!
sabre150, u were right after all!!! Also, thanks to all those who stopped by to rack ur brains over an issue that shouldn't have been one in the first place.
But what I don't understand is this: Even with my wrong code, shouldn't the change be rendered? Ya, I know it was rendering the signals repeatedly, but then it should have rendered them rightly, isn't it? Or am I not getting something?