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That is because the bullet is not being removed when hitting a barrier. In the Bullet class hitBarrrier method (as last shown), add after line 4: <Code Omitted>

Thank you so much! I completely missed that. :) It works as expected now!

The getCount method is not in the World class -- but in a subclass of World. You must inform the compiler which type of world it is in. For example, if the subclass is named MyWorld, then: <Code Omitted>Note that the getWorld method of the Actor class returns a World object (or null), which could potentially be of any subclass of World.

Yes -- it is possible. No further help can be given with the limited information given (detail on game structure and what you are currently having difficulties with).

Oh - and you won't be able to update the file using that method. If you really want to keep high scores persistent, I suggest looking into the Java Preferences API. There's a brief tutorial here.

But thanks. :)

Seems like the name you use in your code is not the same as the name of the file (RIGHT vs. Right)

Like this?

There is also an issue with a stream of bullets instead of individual ones (a new one will be create for each act cycle the space key is held down. You will need a boolean field to track the state of the space key:

(1) you should avoid using 'static' variables and method unless you need to retain a value during a scenario reset (like for a session high score, for example); (2) lines 15 and 121 are problems in that the will be set to values prematurely; these line are set when the object of their respective classes are created and do not automatically update; remove those lines and get the values from within the act method when needed; It would be easier to check for Actor object clicks in your MyWorld act method. You could start with the following classes:

Hippo is correct about what the line should be. You should have been getting an error without the correction since you are not using a "ka0.png" image.

There should be something that has a specific value. It could be a literal constant (like '10' is) or it could be a variable (with a pre-assigned value) or it could be a method call that returns a value of the appropriate type (int, in your case) or it could be an expression that evaluates to a value of that type. At any rate, you supply the distance that you want it to move.