NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 8

Question

Is null an object?

• A. Yes
• B. No
• C. Sometimes yes
• D. None of these

Answer 1

No , null is not an object.It is a reference type and its value does not refer to any object and so there is no representation of null in memory

Almost all the programming languages are bonded with null. There is hardly a programmer, who is not troubled by null.
In Java, null is associated java.lang.NullPointerException. As it is a class in java.lang package, it is called when we try to perform some operations with or without null and sometimes we don’t even know where it has happened.

 

 Null is literal in Java and because keywords are case-sensitive in java, we can’t write NULL or 0 as in C language.

Unlike common misconception, null is not Object or neither a type. It’s just a special value, which can be assigned to any reference type and you can type cast null to any type

References:-https://www.geeksforgeeks.org/interesting-facts-about-null-in-java/