query: Android: java.lang.NullPointerException on .setOnClickListener
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 137692
negative_passages.text: NullPointerException when working with arrays
negative_passages.docid: 80631
negative_passages.text: NullPointerException but compiling?
negative_passages.docid: 69771
negative_passages.text: NullPointerException when setting attribute?
negative_passages.docid: 73285
negative_passages.text: Null Pointer Exception in XMl Parsing
negative_passages.docid: 79289
negative_passages.text: Pass ArrayList from one activity to another activity on android
negative_passages.docid: 43446
negative_passages.text: JSONException: Value of type java.lang.String cannot be converted to JSONObject
negative_passages.docid: 23964
negative_passages.text: Why does Java have a "NullPointerException" when there are no pointers in Java?
negative_passages.docid: 73034
negative_passages.text: StringBuilder append() and null values
negative_passages.docid: 10581
negative_passages.text: Avoiding NullPointerException in Java
negative_passages.docid: 138618
negative_passages.text: How to resolve NullPointerException error in my below POM code?
negative_passages.docid: 5052
negative_passages.text: RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 96046
negative_passages.text: Static fields on a null reference in Java
negative_passages.docid: 87341
negative_passages.text: How do you add an ActionListener onto a JButton in Java
negative_passages.docid: 98080
negative_passages.text: Android: Cannot invoke toString() on the primitive type int
negative_passages.docid: 79586
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object