Computer Science Canada NullPointerException |
| Author: | BladeOfDeath [ Sat Jan 08, 2005 9:51 pm ] |
| Post subject: | NullPointerException |
I get this error every time I something with the paint command in "Ready To Program" which is the program I must use for my computer science course. A little help would be appreciated, if I could fix this problem I could get extra marks on my ISU. |
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| Author: | wtd [ Sat Jan 08, 2005 9:58 pm ] |
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Use the API reference: http://java.sun.com/j2se/1.4.2/docs/api/java/lang/NullPointerException.html |
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| Author: | BladeOfDeath [ Wed Jan 12, 2005 12:44 pm ] |
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okay I looked at the site but I don't know how to fix it, mind telling me how? |
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| Author: | wtd [ Wed Jan 12, 2005 6:23 pm ] | ||||
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My guess is that somewhere you've declared an object-type variable, but haven't used "new" to create it. Like:
instead of:
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| Author: | BladeOfDeath [ Wed Jan 12, 2005 6:41 pm ] |
| Post subject: | |
Well... I think it has something to do with the Image variables or something, because I've never had this error unless using graphics. I'll attach a copy of the code if you wanna check it out for yourself (the images are not enclosed). |
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| Author: | wtd [ Wed Jan 12, 2005 6:48 pm ] |
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Can I see a full copy of the error? |
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| Author: | BladeOfDeath [ Thu Jan 13, 2005 12:12 pm ] |
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it only shows at home, but when i get home ill send it. Thanks for the help though |
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| Author: | MrPenisJr. [ Thu Jan 13, 2005 6:19 pm ] |
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Just use some Java source code! --MrPenisJr. |
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