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Null Pointer Exception for what?

By Entity1037, with 3 replies.
Last reply by Entity1037, almost 13 years ago:

Thank You. Actually the problem is so simple, I'm surprised I didn't figure it out! Oh well :/

Grow method. Need help :(

By kaatja, with 2 replies.
Last reply by danpost, almost 13 years ago:

Explosion

By Pacplay, with 2 replies.
Last reply by danpost, almost 13 years ago:

@Gevater_Tod4711, (1) 'getOneIntersectingObject' is an Actor class method (2) 'getOneIntersectingObject' returns an Object (not a list) Because of (1) above, you cannot use the method on a World object ('getWorld' returns a World object) Because of (2) above, you cannot use 'isEmpty()' on what it returns ('isEmpty' is a List class method) It should be <Code Omitted>

Image change problem

By Hawx_, with 13 replies.
Last reply by Hawx_, almost 13 years ago:

Thanks a lot Danpost! And thank to everyone else for the comments. Helped a lot , Hawx

Getting X of centered Object

By MrBunni, with 1 reply.
Replied to by danpost, almost 13 years ago:

An example to go by would be

Can the world detect objects?

By Entity1037, with 2 replies.
Last reply by Entity1037, almost 13 years ago:

Help with program? (Game won't end)

By beemo27, with 3 replies.
Last reply by davemib123, almost 13 years ago:

not a problem beemo27. Welcome to the greenfoot community.

Can we run greenfoot game for Android?

By ahmadsidrap, with 1 reply.
Replied to by davemib123, almost 13 years ago:

doing a quick search (using search box in top left corner) you will see several topics and games

my character falls through the ground

By KierTulp, with 9 replies.
Last reply by danpost, almost 13 years ago:

My mind was in fall mode when I wrote that, sorry. Try the following, which allows for negative values as well. An added 'step-back' was added to prevent sinking into a ground surface.

Help with spawning

By avatarcolin, with 19 replies.
Last reply by avatarcolin, almost 13 years ago:

If you guys want to see it, i put it up here http://www.greenfoot.org/scenarios/7001

Increase heap size on mac

By Sergio, with 1 reply.
Replied to by actinium, almost 13 years ago:

here's a link i found The start of the video deals with eclipse but towards the end he explains changing heapsize in general. Hope this is helpful.

Scanner string

By Game/maniac, with 1 reply.
Replied to by Game/maniac, almost 13 years ago:

nevermind figured it out I had to do answer.equals("yes")

declaring a variable

By Peach, with 13 replies.
Last reply by Zamoht, almost 13 years ago:

Found someone who said that it represents one bit of information, but it uses 1 byte of memory since it's easier for the proccesor to handle or something like that, but he might be wrong.

What is wrong with my programming?

By hades530, with 9 replies.
Last reply by tylers, almost 13 years ago:

oh just realised that, thanks :D

Breakout block degrading

By Motifaded, with 6 replies.
Last reply by danpost, almost 13 years ago:

danpost wrote...

<Code Omitted>or more simply <Code Omitted>

In the first code block, I had inadvertently used the wrong variable in the second line. It should read: <Code Omitted>

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