Hi...
ich habe folgenden Code (ein bissal gekürzt):
und das kommt raus:
java.lang.NullPointerException
at java.awt.Container.addImpl(Container.java:621)
at java.awt.Container.add(Container.java:307)
at SteveGraf$MainFrame.mousePressed(SteveGraf.java:119)
at java.awt.Component.processMouseEvent(Component.java:5097)
at java.awt.Component.processEvent(Component.java:4897)
at java.awt.Container.processEvent(Container.java:1569)
at java.awt.Window.processEvent(Window.java:1092)
at java.awt.Component.dispatchEventImpl(Component.java:3615)
at java.awt.Container.dispatchEventImpl(Container.java:1627)
at java.awt.Window.dispatchEventImpl(Window.java:1606)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
was kann das heißen?
Danke für Hilfe!!
Grüße, Sir_Steve!
ich habe folgenden Code (ein bissal gekürzt):
Code:
public Button [] BDF; //ist eine Membervariable
//das steht in der INIT-Methode (die im Konstruktor meiner Klasse die das BDF (Buttondatenfeld :) ) als Membervar. hat gestartet wird)
this.BDF = new Button[10];
//dann will ich das machen
BDF[Index[0]] = new Button("Test");
und das kommt raus:
java.lang.NullPointerException
at java.awt.Container.addImpl(Container.java:621)
at java.awt.Container.add(Container.java:307)
at SteveGraf$MainFrame.mousePressed(SteveGraf.java:119)
at java.awt.Component.processMouseEvent(Component.java:5097)
at java.awt.Component.processEvent(Component.java:4897)
at java.awt.Container.processEvent(Container.java:1569)
at java.awt.Window.processEvent(Window.java:1092)
at java.awt.Component.dispatchEventImpl(Component.java:3615)
at java.awt.Container.dispatchEventImpl(Container.java:1627)
at java.awt.Window.dispatchEventImpl(Window.java:1606)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
was kann das heißen?
Danke für Hilfe!!
Grüße, Sir_Steve!