java中的对象和对象有什么区别

Question

What's the difference between them and how can I use Objects?

Objects                 |        Object
java.util               |        java.lang
Class Objects           |        Class Object

java.util.Objects       |        java.lang.Object

Answer 1

The javadoc can help:

java.lang.Object

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.

java.util.Objects

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.

Answer 2

Object is a implicit base class for all classes in java. Objects is a utility class introduced in java 7 that contains several very convenient static utility methods.