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Null Pointer Exception on getGraphics()


Null Pointer Exception on getGraphics()

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Null Pointer Exception on getGraphics()
Tag : java , By : dyarborough
Date : November 25 2020, 01:01 AM


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Null Pointer Exception in getGraphics() for BufferedImage?


Tag : java , By : abuiles
Date : March 29 2020, 07:55 AM
hop of those help? Your NPE is probably not coming from getGraphics but from trying to dereference a null image variable. If your component is not displayable, createImage returns null.

Slick2D getGraphics() returning null, null pointer exception occurs


Tag : java , By : RyanMcG
Date : March 29 2020, 07:55 AM
help you fix your problem You have unfortunately configured a lot of your code in a very unorthodox manor. For a start Slick2d will automatically thread the execution of your program and therefore you do not need to program a thread yourself.
You also appear to be calling methods which do not exist, for example init(container) is not defined in game. Additionally, you are storing container as a data value which is not required thus why you are getting a NPE for the graphics context.

Java Generic Object Null Pointer Check Throwing Null Pointer Exception


Tag : java , By : KS9
Date : March 29 2020, 07:55 AM
Hope this helps In the loop body, current = current.myNext; has no test for myNext being null so on either the first (or a subsequent) loop iteration current must be null. You could change
while (current.myData != null) {
while (current != null && current.myData != null) {

I have an 'if' statement for checking null pointer exception but that line itself is giving a null pointer excpetion


Tag : java , By : yew tree
Date : March 29 2020, 07:55 AM
Hope this helps Code , Here is how you can rewrite it:
if(dataSnapshot != null && dataSnapshot.hasChild("Email") && dataSnapshot.child("Email").getValue() != null ){
    //Your code...
}

Getting a null pointer exception on this line of code. What is a null pointer? And how do i fix


Tag : java , By : Steve M
Date : March 29 2020, 07:55 AM
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