Whar Does output mean in neatbeans IDE 5.0.

hi i have just wrote a programme to for a task list i have built it it runs fine but when i try and run i get this message in the output screen and i was wondering if somone can help me understand what it means in simple English. i am using neatbeans IDE 5.0:
init:
deps-jar:
Compiling 3 source files to C:\Documents and Settings\Administrator\My Documents\work\JavaToDoListProject3\build\classes
compile:
run:
Exception in thread "main" java.lang.NullPointerException
at java.awt.Container.addImpl(Container.java:1019)
at java.awt.Container.add(Container.java:351)
at todolist.ToDoListUI.<init>(ToDoListUI.java:117)
at todolist.ToDoListController.<init>(ToDoListController.java:17)
at todolist.ToDoListMain.main(ToDoListMain.java:13)
Java Result: 1
BUILD SUCCESSFUL (total time: 7 seconds)
________________________________________________________________________________

chuk1 wrote:
hi thanks for replying i am pretty new to java do you mean i should look at line 117 on the todolistUI class. Sorry i am pretty new to java.E is probably away as he hasn't responded yet, but yes - that's what he means. This line calls add, and the parameter sent into that method is null, ie has not been newed when the method is called. Regardless of the method name, this is what NullPointerException means. If the stack trace had ended at line 117, it would mean that the container you tried to call was null, but as the stack trace goes a little deeper, it means that you sent a null reference into this method.

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You can also check out these official SAP locations on the SAP Service Marketplace:
http://service.sap.com/unicode
http://service.sap.com/unicode@SAP
http://service.sap.com/i18n
Regards,
Deepu.K

Whar Does output mean in neatbeans IDE 5.0.

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