I\'m building a program that gets the value of a TextField, concatenate with some other Strings and then display them on a TextBox when the ScreenCommand is clicked, the problem is that it\'s calling
I am c开发者_运维知识库reating a string array with values from a custom object, like this: foreach(MyObject o in MyObjectList)
I get a NullPointerException at a line on which just a simple null check takes place.The line is the following:
I have been trying to read a database in my JSF webapp. I am using the code given from BalusC Code blog:
I am trying to build a child view with 7 columns and 24 TextViews in each column. I get an exception when my activity starts and it does not have my package anywhere in the stack trace.
I am getting a null pointer when I run this piece of code. Its self-explanatory , two classes are used to model a Book and a Library.
There are some patterns for checking whether a parameter to a method has been given a null value. First, the classic one. It is common in self-made code and obvious to understand.
I am fairly new to android and am writing an app that will solve physics problems. The math is going well thanks to some help from these forums, but when I try to start my activity from a list it come
I\'m currently working with MIDlets (I am using a Visual MIDlet) in Netbeans, and a NullPointerException is being thrown but I do not know why.
It seems like it is not a good idea to catch a nullpointerexc开发者_运维知识库eption. If that\'s the case, why is it thrown by methods? Should it just be caught with Exception?
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