| Exception in thread "Animation Thread" java.lang.NullPointerException [message #1708769] |
Sun, 20 September 2015 20:27  |
 Miodrag Lazic
Messages: 1
Registered: September 2015 |
Junior Member |
|
|
package Game;
import processing.core.PApplet;
public class Lives extends PApplet {
public static final long serialVersionUID = 1L;
public void setup() {
size(1300, 600, P2D);
}
int LivesNum = 33;
public void Show(){
fill(0,0,255);
textSize(40);
text("Lives: ",50,550);
}
}
package Game;
import processing.core.PApplet;
public class main extends PApplet
{
private static final long serialVersionUID = 1L;
public void setup() {
size(1300, 600, P2D);
;
}
Lives h = new Lives();
public void draw(){
background(23,123,123);
h.Show();
}
}
Error message:
Exception in thread "Animation Thread" java.lang.NullPointerException
at processing.core.PApplet.fill(PApplet.java:14747)
at Game.Lives.Show(Lives.java:20)
at Game.main.draw(main.java:22)
at processing.core.PApplet.handleDraw(PApplet.java:2390)
at processing.opengl.PJOGL$PGLListener.display(PJOGL.java:873)
at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:690)
at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:672)
at javax.media.opengl.awt.GLCanvas$10.run(GLCanvas.java:1383)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1277)
at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1131)
at javax.media.opengl.awt.GLCanvas$11.run(GLCanvas.java:1394)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source) |
|
|
| Re: Exception in thread "Animation Thread" java.lang.NullPointerException [message #1708823 is a reply to message #1708769] |
Mon, 21 September 2015 14:08  |
Ed Merks
Messages: 33133
Registered: July 2009 |
Senior Member |
|
|
There's no question in your post. In any case, this forum is not for
asking general questions about how to use Java, especially when some
very specific library is involved... Best to use the debugger, see
what's going on to learn how that library works, and ask questions of
the people providing the library.
On 21/09/2015 1:36 PM, Miodrag Lazic wrote:
> package Game;
>
> import processing.core.PApplet;
>
>
> public class Lives extends PApplet {
>
>
>
> public static final long serialVersionUID = 1L;
> public void setup() {
> size(1300, 600, P2D); }
>
>
>
> int LivesNum = 33;
>
> public void Show(){
> fill(0,0,255);
> textSize(40);
> text("Lives: ",50,550);
> }
>
> }
>
>
>
>
>
>
>
>
> package Game;
>
> import processing.core.PApplet;
>
> public class main extends PApplet
> {
>
> private static final long serialVersionUID = 1L;
>
> public void setup() {
> size(1300, 600, P2D); ;
> }
>
> Lives h = new Lives();
>
>
>
> public void draw(){
>
> background(23,123,123);
> h.Show();
>
> }
>
> }
>
>
> Error message:
>
> Exception in thread "Animation Thread" java.lang.NullPointerException
> at processing.core.PApplet.fill(PApplet.java:14747)
> at Game.Lives.Show(Lives.java:20)
> at Game.main.draw(main.java:22)
> at processing.core.PApplet.handleDraw(PApplet.java:2390)
> at processing.opengl.PJOGL$PGLListener.display(PJOGL.java:873)
> at
> jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:690)
> at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:672)
> at javax.media.opengl.awt.GLCanvas$10.run(GLCanvas.java:1383)
> at
> jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1277)
> at
> jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1131)
> at javax.media.opengl.awt.GLCanvas$11.run(GLCanvas.java:1394)
> at java.awt.event.InvocationEvent.dispatch(Unknown Source)
> at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
> at java.awt.EventQueue.access$500(Unknown Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown
> Source)
> at java.awt.EventQueue.dispatchEvent(Unknown Source)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown
> Source)
> at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
> Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.run(Unknown Source)
Ed Merks
Professional Support: https://www.macromodeling.com/
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