Discussions

Cannot help without seeing the codes producing the error.

No worries. Your line 2 declares it as the primitive type, int, which automatically, by default, is assigned a value of zero. Side note: had you declared it as type Integer (which is an object reference type), only then would its default value be null,.

I've only made the bats and the ball. I have the ball moving and I can move the bats with the keyboard.

never mind, i got it!

ok thank you

It is the block of code that is executed when you create a new instance of a class (a new object). The block looks similar to a method, but it does not have a return type given (nothing where "void" usually is) and its name is the same as the class. Your World subclass constructor starts with: <Code Omitted>My Fish class constructor above will execute when <Code Omitted>is found in your codee. Constructors automatically return the new object created. So, you would either assign the new object to a variab

Thank you so much!

In changeScore, create a text GreenfootImage object and set it to the image of the Score actor.

I once thought of creating a copy of it here but never did. But go ahead. You can do it. :)

Hi, I think I might have come up with a solution but I'm having difficulty implementing it into code. I want to assign a value to the customer when it is added to the world increasing the assigned value by one every time a new customer is added. I also want to do the same for the drink. so if the customer with the assigned value of 1 intersects with a drink with assigned number 1 the assigned values go down by one and remove the intersecting drink .customer2 would become customer1 and drink2 would become drink1. If customer1 assigned value was zero it will ignore other drinks that interse

Will need to see World subclass and Bat class codes.

Instead of getKey, use isKeyDown with a boolean field to track the state of the "space" key. That way, you can regulate it so that the key is released between each jump.

i have already solved the problem thank you so much though

no