What object in Java is considered the fundamental for implementing all classes and objects?

In Java, the main object from which all classes and objects inherit is the java.lang.Object class.

All classes implicitly inherit this class unless explicitly specified otherwise. It provides basic methods such as:

• equals() — for comparing objects
• hashCode() — for obtaining the hash code of an object
• toString() — for getting a string representation
• clone() — for creating a copy of the object
• getClass() — for obtaining information about the object's class

Thus, Object is the root of the class hierarchy in Java.