It’s entirely possible for two distinct object instances to be “equal” according to their contract. And then there’s the minor detail that since equals is a method, if you try to invoke it on a null reference, you’ll get a NullPointerException .21 Ara 2010
Read moreCan you use == for null?
7. == and != The comparison and not equal to operators are allowed with null in Java . This can made useful in checking of null with objects in java.
Read moreWhy should we use Objects nonNull?
The nonNull method is a static method of the Objects class in Java that checks whether the input object reference supplied to it is non-null or not . If the passed object is non-null, then the method returns true. If the passed object is null , then the method returns false.
Read moreHow do you check if an object is null?
To check if it is null, we call the isNull() method and pass the object getUserObject as a parameter . It returns true as the passed object is null.
Read moreIs object null in Java?
Is null an Object in Java? No it’s not , and for those who wonder why such a question, there are languages where null is indeed an object like any, for example Ruby. In Scala, which is very meticulous about types, there is a type Null (a trait, actually) having a single instance null .
Read more