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Class Object

java.lang.Object 
public class Object

Since:  JDK1.0

Class Object is the root of the class hierarchy. Every class has Object as a superclass. All objects, including arrays, implement the methods of this class.

Class Objects

java.lang.Object
java.util.Objects 
public final class Objects 
                    extends Object
Since: JDK1.7

This class consists of static utility methods for operating on objects. These utilities include null-safe or null-tolerant methods for computing the hash code of an object, returning a string for an object, and comparing two objects.