query: What does this mean Calling the instance method of a null object "
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 64695
negative_passages.text: onDestroy() - to set or not to set instance variables to null?
negative_passages.docid: 117930
negative_passages.text: Can a method be used as either a staticmethod or instance method?
negative_passages.docid: 88920
negative_passages.text: Is using NULL references OK?
negative_passages.docid: 151469
negative_passages.text: What is the difference between null and System.DBNull.Value?
negative_passages.docid: 108336
negative_passages.text: Nullable Object must have a value #2
negative_passages.docid: 154567
negative_passages.text: difference between null != something and something != null
negative_passages.docid: 131308
negative_passages.text: Use cases for Object.create(null)
negative_passages.docid: 149666
negative_passages.text: Why can't a null-reference exception name the object that has a null reference?
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 104935
negative_passages.text: Java ArrayList add() method in the instance variable section
negative_passages.docid: 89755
negative_passages.text: Why is "throw null" not creating a compilation error in Java?
negative_passages.docid: 11477
negative_passages.text: Java: calling a method on a Constructor
negative_passages.docid: 152780
negative_passages.text: what is the difference between null != object and object!=null
negative_passages.docid: 40674
negative_passages.text: What is the difference between null and undefined in JavaScript?
negative_passages.docid: 118541
negative_passages.text: How to pass a default argument value of an instance member to a method?
negative_passages.docid: 39810
negative_passages.text: What is "string[] args" in Main class for?