Will every class inherit the object class?

[Chandra Bairi]

hello friends,
I have a doubt. Ihave read that every class extends java.lang.Object class implicitly. Does this hold for an interface also? Does a interface extend the java.lang.Object methods?

[Pradeep bhatt]

No.
When some class implements the interface by default the class also extends java.lang.Object.

[Tom Wolve]

The simple rule is
interfaces can extend interfaces, but not classes.
classes can extend classes, but not interfaces.

[Donald R. Cossitt]

An interface is essentially a collection of constants and abstract methods. To make use of an interface, you implement the interface in a class - that is, you declare that the class implements the interface and you write the code for each of the methods declared in the interface as part of the class definition.
Check
Learning the Java Language
What is an Interface?
Implementing an Interface

At Java Sun
HTH