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SLIDER

By ronald, with 6 replies.
Last reply by danpost, 17 days ago:

ronald wrote...

Addedtoworld is part of the Greenfoot API

Yes, addedToWorld(World) is part of the Actor class API. To use (aka override) the method, you must duplicate the name precisely and use the same number and type parameters in the same order. Anything else would be a different method altogether.

changing worlds by choices

By bangtan, with 1 reply.
Replied to by danpost, 17 days ago:

Please provide full class.

levels

By bangtan, with 1 reply.
Replied to by danpost, 17 days ago:

bangtan wrote...

i have three levels, easy unli attempts, average 3 attempts, difficult 5minute timer. how could i possibly code it in one actor

That would be considered game control and should be coded in your game world.

input text box

By bangtan, with 1 reply.
Replied to by danpost, 17 days ago:

You could inserting the following at line 28: <Code Omitted>

input text box

By bangtan, with no replies.

i have successfully made to ask the player to input a value. i asked the player to input the answer on the problem given on the game and i assigned a certain value for the correct answer. i tried to answer to see if the program is working and inserted a wrong value, then the try again world appeared. i tried to reset the whole game but when it comes to the ask part, the "try again" automatically appears. how can i reset the input value? Here is my program. <Code Omitted>

help idk what i must to do

By mariq_rasyid29, with 3 replies.
Last reply by danpost, 18 days ago:

mariq_rasyid29 wrote...

This is the eror code form terminal idk what i must to do << Error Trace Omitted >>

That appears to be a greenfoot bug -- not sure.

changing worlds by choices

By bangtan, with 2 replies.
Last reply by danpost, 18 days ago:

RcCookie wrote...

If you want either of the passed objects to trigger the if statement, you can use <Code Omitted>

But, that is not what is wanted. That is, not one or the other choice is to be made, but both. To achieve that, neither choosing can trigger the problem world. A separate button actor should be used for that. One of each set of choices can be pre-selected and the user can change the selection at will. When satisfied, the user can click the "Done" or "Proceed" (or whatever) button.

End of Greenfoot?

By dejong1968, with 1 reply.
Replied to by Gbasire, 19 days ago:

Don't worry, java will still be developed, and for a long time, the only thing that won't be developed anymore is Java SE 8. While Greenfoot works (I believe) with java 8, there are many possibilities : 1. Greenfoot will switch to a newer java version 2. Greenfoot won't switch, but it won't affect us, because extended security updates will still happen til 2030

HOW TO CREATE A SCROLL BAR ?

By ronald, with 21 replies.
Last reply by ronald, 19 days ago:

I just tested on a vertical scroll bar it also works was enough to reverse, I just realize that I have two same images while I have only one is this normal? Is this because of setimage world and new greenfootimage image (.... jpg)?

How can i create a world that not square or rectangle.

By Yusj, with no replies.

i wanna create a world just like dead cells ,but how can i build some wall or like floor.

How do I declare the value of a variable as i create an actor

By MrMinestrone, with 3 replies.
Last reply by Yusj, 20 days ago:

yep ,if u wanna declare the value of pstart ,its correct.

what do I do to get my gui to pop up?

By divinity, with 19 replies.
Last reply by divinity, 20 days ago:

i want to upload a picuture for you to see what I am talking about but there is no upload feature here.

How do I get the variable of an actor using an actor of the same class?

By Simon567, with 2 replies.
Last reply by Simon567, 20 days ago:

thank you very much you are a legend

IMPORTANT AND URGENT!!!!

By HELP, with 4 replies.
Last reply by Gbasire, 20 days ago:

please share the whole code please

I need to convert an array of integers into a string array after sorting it.

By yemmaf21, with 8 replies.
Last reply by danpost, 20 days ago:

rocket770 wrote...

I'm pretty sure there is a problem with line 22. ... Try to replace it with << Code Omitted >>

Same thing. No problem there.

rocket770 wrote...

Also, the reason the code is not compiling is that in line 5, you declare a variable named "lines" and you do the exact same in line 24. Try changing the name to something else.

Yes. That is the current problem -- trying to declare another variable with the same name as one already declared.

It also seems like once the code actually executes you'd get a null pointer exception as Danpost said. Do yo

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