string null pointer exception code example
Example 1: What’s null pointer exception?
First, null keyword it does not refers to any object at all.
Null keyword means no object.
null pointer excep: there is no object at all.
So you can't get access to the instance of that object
Example 2: null pointer exception
NullPointerExceptions are exceptions that occur when you try to
use a reference that points to no location in memory (null)
as though it were referencing an object.