Compare two objects with possible 'null' value - java.util.Objects

 Java 7 provided the new class called 'Objects'. This class provides a null safe method to compare

two objects.

java.util.Objects

boolean equals(Object a,Object b) 

- if both object are null , it will return true

- if one object is null,  false will return

- otherwise equality comparison based on equals() method

example :

String s1 = null;

String s2 = "one";

if you apply s1.equals(s2);

Then in this case  if s1 is null like here, it will give you nullpointer exception

So for safe comparison we can use.

Objects.equals(s1,s2);

This will return false in our case.